dnl Process this file with autoconf to produce a configure script. -*-m4-*-
dnl %CopyrightBegin%
dnl
dnl Copyright Ericsson AB 1997-2010. All Rights Reserved.
dnl
dnl The contents of this file are subject to the Erlang Public License,
dnl Version 1.1, (the "License"); you may not use this file except in
dnl compliance with the License. You should have received a copy of the
dnl Erlang Public License along with this software. If not, it can be
dnl retrieved online at http://www.erlang.org/.
dnl
dnl Software distributed under the License is distributed on an "AS IS"
dnl basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
dnl the License for the specific language governing rights and limitations
dnl under the License.
dnl
dnl %CopyrightEnd%
dnl The string "FIXME convbreak" means that there is a break of
dnl autoconf convention that should be cleaned up.
AC_INIT(vsn.mk)
AC_PREREQ(2.59)
if test "x$no_recursion" != "xyes" -a "x$OVERRIDE_CONFIG_CACHE" = "x"; then
# We do not want to use a common cache!
cache_file=/dev/null
fi
dnl How to set srcdir absolute is taken from the GNU Emacs distribution
#### Make srcdir absolute, if it isn't already. It's important to
#### avoid running the path through pwd unnecessary, since pwd can
#### give you automounter prefixes, which can go away.
case "${srcdir}" in
/* ) ;;
. )
## We may be able to use the $PWD environment variable to make this
## absolute. But sometimes PWD is inaccurate.
## Make sure CDPATH doesn't affect cd (in case PWD is relative).
CDPATH=
if test "${PWD}" != "" && test "`(cd ${PWD} ; sh -c pwd)`" = "`pwd`" ;
then
srcdir="$PWD"
else
srcdir="`(cd ${srcdir}; pwd)`"
fi
;;
* ) srcdir="`(cd ${srcdir}; pwd)`" ;;
esac
## Now, make sure that ERL_TOP is set and is the same as srcdir
##
if test -z "$ERL_TOP" || test ! -d $ERL_TOP ; then
AC_MSG_ERROR(You need to set the environment variable ERL_TOP!)
fi
if test x"${ERL_TOP}/erts" != x"$srcdir"; then
AC_MSG_ERROR([You need to run configure with argument --srcdir=${ERL_TOP}/erts])
fi
erl_top=${ERL_TOP}
# echo XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
# echo X
# echo "X srcdir = $srcdir"
# echo "X ERL_TOP = $ERL_TOP"
# echo X
# echo XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
AC_CONFIG_AUX_DIRS($srcdir/autoconf)
dnl ----------------------------------------------------------------------
dnl Figure out what system we are running on.
dnl ----------------------------------------------------------------------
#
# To configure for free source run ./configure --host=free_source
#
dnl
dnl AC_CANONICAL_HOST does not like free_source as a host specification,
dnl so we make a little special case.
dnl
if test "X$host" != "Xfree_source" -a "X$host" != "Xwin32"; then
AC_CANONICAL_HOST
else
host_os=$host
fi
AC_ISC_POSIX
AC_CONFIG_HEADER($host/config.h:config.h.in include/internal/$host/ethread_header_config.h:include/internal/ethread_header_config.h.in include/$host/erl_int_sizes_config.h:include/erl_int_sizes_config.h.in)
dnl ----------------------------------------------------------------------
dnl Optional features.
dnl ----------------------------------------------------------------------
enable_child_waiter_thread=no
ENABLE_ALLOC_TYPE_VARS=
AC_SUBST(ENABLE_ALLOC_TYPE_VARS)
AC_ARG_ENABLE(threads,
[ --enable-threads enable async thread support
--disable-threads disable async thread support],
[ case "$enableval" in
no) enable_threads=no ;;
*) enable_threads=yes ;;
esac ], enable_threads=unknown)
AC_ARG_ENABLE(smp-support,
[ --enable-smp-support enable smp support
--disable-smp-support disable smp support],
[ case "$enableval" in
no) enable_smp_support=no ;;
*) enable_smp_support=yes ;;
esac ], enable_smp_support=unknown)
AC_ARG_WITH(termcap,
[ --with-termcap use termcap (default)
--without-termcap do not use any termcap libraries (ncurses,curses,termcap,termlib)],
[],
[with_termcap=yes])
AC_ARG_ENABLE(hybrid-heap,
[ --enable-hybrid-heap enable hybrid heap
--disable-hybrid-heap disable hybrid heap],
[ case "$enableval" in
no) enable_hybrid_heap=no ;;
*) enable_hybrid_heap=yes ;;
esac ], enable_hybrid_heap=unknown)
AC_ARG_ENABLE(lock-checking,
[ --enable-lock-checking enable lock checking],
[ case "$enableval" in
no) enable_lock_check=no ;;
*) enable_lock_check=yes ;;
esac
],
enable_lock_check=no)
AC_ARG_ENABLE(lock-counter,
[ --enable-lock-counter enable lock counters
--disable-lock-counter disable lock counters],
[ case "$enableval" in
no) enable_lock_count=no ;;
*) enable_lock_count=yes ;;
esac ], enable_lock_count=no)
AC_ARG_ENABLE(kernel-poll,
[ --enable-kernel-poll enable kernel poll support
--disable-kernel-poll disable kernel poll support],
[ case "$enableval" in
no) enable_kernel_poll=no ;;
*) enable_kernel_poll=yes ;;
esac ], enable_kernel_poll=unknown)
AC_ARG_ENABLE(sctp,
[ --enable-sctp enable sctp support
--disable-sctp disable sctp support],
[ case "$enableval" in
no) enable_sctp=no ;;
*) enable_sctp=yes ;;
esac ], enable_sctp=unknown)
AC_ARG_ENABLE(hipe,
[ --enable-hipe enable hipe support
--disable-hipe disable hipe support])
AC_ARG_ENABLE(native-libs,
[ --enable-native-libs compile Erlang libraries to native code])
AC_ARG_ENABLE(tsp,
[ --enable-tsp compile tsp app])
AC_ARG_ENABLE(elib-malloc,
[ --enable-elib-malloc use elib_malloc instead of normal malloc])
AC_ARG_ENABLE(fp-exceptions,
[ --enable-fp-exceptions Use hardware floating point exceptions (default if hipe enabled)],
[ case "$enableval" in
no) enable_fp_exceptions=no ;;
*) enable_fp_exceptions=yes ;;
esac
],enable_fp_exceptions=auto)
AC_ARG_ENABLE(darwin-universal,
[ --enable-darwin-universal build universal binaries on darwin i386],
[ case "$enableval" in
no) enable_darwin_universal=no ;;
*) enable_darwin_univeral=yes ;;
esac
],enable_darwin_universal=no)
AC_ARG_ENABLE(darwin-64bit,
[ --enable-darwin-64bit build 64bit binaries on darwin],
[ case "$enableval" in
no) enable_darwin_64bit=no ;;
*) enable_darwin_64bit=yes ;;
esac
],enable_darwin_64bit=no)
AC_ARG_ENABLE(m64-build,
[ --enable-m64-build build 64bit binaries using the -m64 flag to (g)cc],
[ case "$enableval" in
no) enable_m64_build=no ;;
*) enable_m64_build=yes ;;
esac
],enable_m64_build=no)
AC_ARG_ENABLE(fixalloc,
[ --disable-fixalloc disable the use of fix_alloc])
if test x${enable_fixalloc} = xno ; then
AC_DEFINE(NO_FIX_ALLOC,[],
[Define if you don't want the fix allocator in Erlang])
fi
AC_SUBST(PERFCTR_PATH)
AC_ARG_WITH(perfctr,
[ --with-perfctr=PATH specify location of perfctr include and lib
--without-perfctr don't use perfctr (default)])
if test "x$with_perfctr" = "xno" -o "x$with_perfctr" = "x" ; then
PERFCTR_PATH=
else
if test ! -f "$with_perfctr/usr.lib/libperfctr.a" ; then
AC_MSG_ERROR(Invalid path to option --with-perfctr=PATH)
fi
PERFCTR_PATH="$with_perfctr"
AC_DEFINE(USE_PERFCTR,[1],
[Define to enable hrvtime() on Linux systems with perfctr extension])
fi
AC_ARG_ENABLE(clock-gettime,
[ --enable-clock-gettime Use clock-gettime for time correction],
[ case "$enableval" in
no) clock_gettime_correction=no ;;
*) clock_gettime_correction=yes ;;
esac ], clock_gettime_correction=unknown)
AC_ARG_ENABLE(native-ethr-impls,
[ --enable-native-ethr-impls enable native ethread implementations
--disable-native-ethr-impls disable native ethread implementations],
[ case "$enableval" in
no) disable_native_ethr_impls=yes ;;
*) disable_native_ethr_impls=no ;;
esac ], disable_native_ethr_impls=no)
dnl Defined in libraries/megaco/configure.in but we need it here
dnl also in order to show it to the "top user"
AC_ARG_ENABLE(megaco_flex_scanner_lineno,
[ --disable-megaco-flex-scanner-lineno disable megaco flex scanner lineno])
dnl Magic test for clearcase.
OTP_RELEASE=
if test "${ERLANG_COMMERCIAL_BUILD}" != ""; then
OTP_EXTRA_FLAGS=-DOTP_RELEASE
OTP_RELEASE=yes
else
OTP_EXTRA_FLAGS=
fi
AC_SUBST(OTP_RELEASE)
dnl OK, we might have darwin switches off different kinds, lets
dnl check it all before continuing.
TMPSYS=`uname -s`-`uname -m`
if test X${enable_darwin_universal} = Xyes; then
if test X${enable_darwin_64bit} = Xyes; then
AC_MSG_ERROR([--enable-darwin-universal and --enable-darwin-64bit mutually exclusive])
fi
enable_hipe=no
case $CFLAGS in
*-arch\ ppc*)
;;
*)
CFLAGS="-arch ppc $CFLAGS"
;;
esac
case $CFLAGS in
*-arch\ i386*)
;;
*)
CFLAGS="-arch i386 $CFLAGS"
;;
esac
fi
if test X${enable_darwin_64bit} = Xyes; then
case "$TMPSYS" in
Darwin-i386|Darwin-x86_64)
;;
Darwin*)
AC_MSG_ERROR([--enable-darwin-64bit only supported on x86 hosts])
;;
*)
AC_MSG_ERROR([--enable-darwin-64bit only supported on Darwin])
;;
esac
fi
if test X${enable_darwin_64bit} = Xyes -o X${enable_m64_build} = Xyes; then
enable_hipe=no
case $CFLAGS in
*-m64*)
;;
*)
CFLAGS="-m64 $CFLAGS"
;;
esac
else
case $host_os in
darwin*)
case $CFLAGS in
*-m32*)
;;
*)
CFLAGS="-m32 $CFLAGS"
;;
esac
;;
*)
;;
esac
fi
dnl ----------------------------------------------------------------------
dnl Checks for programs.
dnl ----------------------------------------------------------------------
AC_PROG_CC
AC_SUBST(GCC)
dnl ---------------------------------------------------------------------
dnl Special stuff regarding CFLAGS and details in the environment...
dnl ---------------------------------------------------------------------
dnl NOTE: CPPFLAGS will be included in CFLAGS at the end
case $host_os in
linux*) CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE";;
win32)
# The ethread library requires _WIN32_WINNT of at least 0x0403.
# -D_WIN32_WINNT=* from CPPFLAGS is saved in ETHR_DEFS.
CPPFLAGS="$CPPFLAGS -D_WIN32_WINNT=0x0500 -DWINVER=0x0500"
# _USE_32BIT_TIME_T is needed when using VC++ 2005 (ctime() will fail
# otherwise since we pass it a 32-bit value).
#
# FIXME: Use time_t all the way and remove _USE_32BIT_TIME_T.
AC_MSG_WARN([Reverting to 32-bit time_t])
CPPFLAGS="$CPPFLAGS -D_USE_32BIT_TIME_T"
;;
darwin*)
CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE"
;;
*)
;;
esac
MIXED_CYGWIN=no
AC_MSG_CHECKING(for mixed cygwin and native VC++ environment)
if test "X$host" = "Xwin32" -a "x$GCC" != x"yes"; then
if test -x /usr/bin/cygpath; then
CFLAGS="-O2"
MIXED_CYGWIN=yes
AC_MSG_RESULT([yes])
MIXED_CYGWIN_VC=yes
CPPFLAGS="$CPPFLAGS -DERTS_MIXED_CYGWIN_VC"
else
AC_MSG_RESULT([undeterminable])
AC_MSG_ERROR(Seems to be mixed windows but not with cygwin, cannot handle this!)
fi
else
AC_MSG_RESULT([no])
MIXED_CYGWIN_VC=no
fi
AC_SUBST(MIXED_CYGWIN_VC)
AC_MSG_CHECKING(for mixed cygwin and native MinGW environment)
if test "X$host" = "Xwin32" -a "x$GCC" = x"yes"; then
if test -x /usr/bin/cygpath; then
CFLAGS="-O2"
MIXED_CYGWIN=yes
AC_MSG_RESULT([yes])
MIXED_CYGWIN_MINGW=yes
CPPFLAGS="$CPPFLAGS -DERTS_MIXED_CYGWIN_MINGW"
else
AC_MSG_RESULT([undeterminable])
AC_MSG_ERROR(Seems to be mixed windows but not with cygwin, cannot handle this!)
fi
else
AC_MSG_RESULT([no])
MIXED_CYGWIN_MINGW=no
fi
AC_SUBST(MIXED_CYGWIN_MINGW)
AC_MSG_CHECKING(if we mix cygwin with any native compiler)
if test "X$MIXED_CYGWIN" = "Xyes" ; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_SUBST(MIXED_CYGWIN)
dnl
dnl Flags to the C compiler
dnl
dnl Make sure we find config.h
dnl
extra_flags="-I${ERL_TOP}/erts/$host $OTP_EXTRA_FLAGS"
CFLAGS="$CFLAGS $extra_flags"
DEBUG_CFLAGS="-g $CPPFLAGS $extra_flags"
DEBUG_FLAGS=-g
CFLAG_RUNTIME_LIBRARY_PATH="-Wl,-R"
case $host_os in
darwin*)
CFLAG_RUNTIME_LIBRARY_PATH=
CFLAGS="$CFLAGS -no-cpp-precomp"
;;
win32)
CFLAG_RUNTIME_LIBRARY_PATH=
;;
osf*)
CFLAG_RUNTIME_LIBRARY_PATH="-Wl,-rpath,"
;;
*)
;;
esac
dnl
dnl Use the getconf utility if it exists
dnl to find large file support flags.
dnl
if type getconf >/dev/null 2>&1; then
CFLAGS="$CFLAGS `getconf LFS_CFLAGS 2>/dev/null`"
DEBUG_CFLAGS="$DEBUG_CFLAGS `getconf LFS_CFLAGS 2>/dev/null`"
LDFLAGS="$LDFLAGS `getconf LFS_LDFLAGS 2>/dev/null`"
LIBS="$LIBS `getconf LFS_LIBS 2>/dev/null`"
fi
if test "x$GCC" = xyes; then
# until the emulator can handle this, I suggest we turn it off!
#WFLAGS="-Wall -Wshadow -Wcast-qual -Wmissing-declarations"
WFLAGS="-Wall -Wstrict-prototypes -Wmissing-prototypes"
saved_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -Wdeclaration-after-statement"
AC_TRY_COMPILE([],[;], warn_decl_after_st=true, warn_decl_after_st=false)
if test "X$warn_decl_after_st" = "Xtrue"; then
WFLAGS="$WFLAGS -Wdeclaration-after-statement"
fi
CFLAGS=$saved_CFLAGS
else
WFLAGS=""
fi
dnl DEBUG_FLAGS is obsolete (I hope)
AC_SUBST(DEBUG_FLAGS)
AC_SUBST(DEBUG_CFLAGS)
AC_SUBST(WFLAGS)
AC_SUBST(CFLAG_RUNTIME_LIBRARY_PATH)
AC_CHECK_SIZEOF(void *) # Needed for ARCH and smp checks below
dnl
dnl Figure out operating system and cpu architecture
dnl
if test "x$host_alias" != "x"; then
chk_opsys_=$host_os
else
chk_opsys_=`uname -s`
if test "x$chk_opsys_" = "xSunOS"; then
chk_opsys_=$chk_opsys_`uname -r`
fi
fi
case $chk_opsys_ in
win32) OPSYS=win32;;
solaris2.*|SunOS5.*) OPSYS=sol2;;
linux|Linux) OPSYS=linux;;
darwin|Darwin) OPSYS=darwin;;
freebsd|FreeBSD) OPSYS=freebsd;;
*) OPSYS=noopsys
esac
if test "x$host_alias" != "x" -a "x$host_cpu" != "x"; then
chk_arch_=$host_cpu
else
chk_arch_=`uname -m`
fi
case $chk_arch_ in
sun4u) ARCH=ultrasparc;;
sparc64) ARCH=sparc64;;
sun4v) ARCH=ultrasparc;;
i86pc) ARCH=x86;;
i386) ARCH=x86;;
i486) ARCH=x86;;
i586) ARCH=x86;;
i686) ARCH=x86;;
x86_64) ARCH=amd64;;
amd64) ARCH=amd64;;
macppc) ARCH=ppc;;
ppc) ARCH=ppc;;
ppc64) ARCH=ppc64;;
"Power Macintosh") ARCH=ppc;;
armv5b) ARCH=arm;;
armv5teb) ARCH=arm;;
armv5tel) ARCH=arm;;
tile) ARCH=tile;;
*) ARCH=noarch;;
esac
dnl
dnl Convert between x86 and amd64 based on the compiler's mode.
dnl Ditto between ultrasparc and sparc64.
dnl
AC_MSG_CHECKING(whether compilation mode forces ARCH adjustment)
case "$ARCH-$ac_cv_sizeof_void_p" in
i386-8)
AC_MSG_RESULT(yes: adjusting ARCH=x86 to ARCH=amd64)
ARCH=amd64
;;
x86-8)
AC_MSG_RESULT(yes: adjusting ARCH=x86 to ARCH=amd64)
ARCH=amd64
;;
amd64-4)
AC_MSG_RESULT(yes: adjusting ARCH=amd64 to ARCH=x86)
ARCH=x86
;;
ultrasparc-8)
AC_MSG_RESULT(yes: adjusting ARCH=ultrasparc to ARCH=sparc64)
ARCH=sparc64
;;
sparc64-4)
AC_MSG_RESULT(yes: adjusting ARCH=sparc64 to ARCH=ultrasparc)
ARCH=ultrasparc
;;
ppc64-4)
AC_MSG_RESULT(yes: adjusting ARCH=ppc64 to ARCH=ppc)
ARCH=ppc
;;
*)
AC_MSG_RESULT(no)
;;
esac
AC_SUBST(OPSYS)
AC_SUBST(ARCH)
dnl Check consistency of os and darwin-switches
dnl Take care of LDFLAGS on darwin, and disable common_test as it
dnl has a build/configure system re rx-lib that is not compatible
dnl First remove common_tests skip file.
dnl Adjust LDFLAGS to allow 64bit linkage on DARWIN
case $ARCH-$OPSYS in
amd64-darwin*)
AC_MSG_NOTICE([Adjusting LDFLAGS to cope with 64bit Darwin])
case $LDFLAGS in
*-m64*)
;;
*)
LDFLAGS="-m64 $LDFLAGS"
;;
esac
;;
*-darwin*)
if test X${enable_darwin_universal} = Xyes; then
AC_MSG_NOTICE([Adjusting LDFLAGS for universal binaries])
case $LDFLAGS in
*-arch\ ppc*)
;;
*)
LDFLAGS="-arch ppc $LDFLAGS"
;;
esac
case $LDFLAGS in
*-arch\ i386*)
;;
*)
LDFLAGS="-arch i386 $LDFLAGS"
;;
esac
else
case $LDFLAGS in
*-m32*)
;;
*)
LDFLAGS="-m32 $LDFLAGS"
;;
esac
fi
;;
*)
if test X${enable_m64_build} = Xyes; then
AC_MSG_NOTICE([Adjusting LDFLAGS to use -m64])
case $LDFLAGS in
*-m64*)
;;
*)
LDFLAGS="-m64 $LDFLAGS"
;;
esac
fi
;;
esac
AC_MSG_CHECKING(if VM has to be linked with Carbon framework)
case $ARCH-$OPSYS in
amd64-darwin*)
LIBCARBON=
AC_MSG_RESULT([no])
;;
*-darwin*)
LIBCARBON="-framework Carbon "
AC_MSG_RESULT([yes])
;;
*)
LIBCARBON=
AC_MSG_RESULT([no])
;;
esac
AC_SUBST(LIBCARBON)
dnl some tests below will call this if we haven't already - and autoconf
dnl can't handle those tests being done conditionally at runtime
AC_PROG_CPP
AC_PROG_RANLIB
AC_PROG_YACC
LM_PROG_PERL5
if test "$ac_cv_path_PERL" = false; then
AC_MSG_ERROR([Perl version 5 is required to build the emulator!])
fi
AC_PROG_LN_S
AC_CHECK_PROG(AR, ar, ar, false)
if test "$ac_cv_prog_AR" = false; then
AC_MSG_ERROR([No 'ar' command found in PATH])
fi
_search_path=/bin:/usr/bin:/usr/local/bin:$PATH
AC_PATH_PROG(RM, rm, false, $_search_path)
if test "$ac_cv_path_RM" = false; then
AC_MSG_ERROR([No 'rm' command found])
fi
AC_PATH_PROG(MKDIR, mkdir, false, $_search_path)
if test "$ac_cv_path_MKDIR" = false; then
AC_MSG_ERROR([No 'mkdir' command found])
fi
_search_path=
#
# Get programs needed for building the documentation
#
## Delete previous failed configure results
if test -f doc/CONF_INFO; then
rm doc/CONF_INFO
fi
AC_CHECK_PROGS(XSLTPROC, xsltproc)
if test -z "$XSLTPROC"; then
echo "xsltproc" >> doc/CONF_INFO
AC_MSG_WARN([No 'xsltproc' command found: the documentation can not be built])
fi
AC_CHECK_PROGS(FOP, fop)
if test -z "$FOP"; then
echo "fop" >> doc/CONF_INFO
AC_MSG_WARN([No 'fop' command found: the documentation can not be built])
fi
dnl
dnl We can live with Solaris /usr/ucb/install
dnl
case $host in
*-*-solaris*|free_source)
if test -x /usr/ucb/install; then
INSTALL="/usr/ucb/install -c"
fi
;;
*)
;;
esac
AC_PROG_INSTALL
LM_PROG_INSTALL_DIR
case $host_os in
darwin*)
dnl Need to preserve modification time on archives;
dnl otherwise, ranlib has to be run on archives
dnl again after installation.
INSTALL_DATA="$INSTALL_DATA -p";;
*)
;;
esac
dnl
dnl Fix for Tilera install permissions
dnl
case $build in
*tile*)
INSTALL_PROGRAM="$INSTALL_PROGRAM -m755"
INSTALL_SCRIPT="$INSTALL_SCRIPT -m755"
;;
*)
;;
esac
dnl ----------------------------------------------------------------------
dnl Misc. things (some of them should go away)
dnl ----------------------------------------------------------------------
dnl
dnl An attempt to allow cross compiling. This is not the right way,
dnl nor does it work currently. Some makefiles still needs these
dnl variables, so we leave them in for now.
dnl
HCC='$(CC)' AC_SUBST(HCC)
HCFLAGS="" AC_SUBST(HCFLAGS)
HCFLAGS="$HCFLAGS -I${ERL_TOP}/erts/$host"
vxworks_reclaim="" AC_SUBST(vxworks_reclaim)
LD='$(CC)' AC_SUBST(LD)
dnl Check for cygwin and object/exe files extension
dnl AC_CYGWIN is deprecated
AC_EXEEXT
AC_OBJEXT
dnl This is the os flavour, should be unix, vxworks or win32
if test "X$host" = "Xwin32"; then
ERLANG_OSTYPE=win32
else
ERLANG_OSTYPE=unix
fi
AC_SUBST(ERLANG_OSTYPE)
dnl Which sysv4 would this be, and what is it for???
dnl XXX: replace with feature tests.
case $host_os in
sysv4*)
AC_DEFINE(SOCKOPT_CONNECT_STAT,[],[Obscure SYSV feature])
AC_DEFINE(NO_PRAGMA_WEAK,[],[Obscure SYSV feature])
LIBS="$LIBS -lgen -lc -L /usr/ucblib -lucb"
;;
esac
# Check how to export functions from the emulator executable, needed
# when dynamically loaded drivers are loaded (so that they can find
# emulator functions).
# OS'es with ELF executables using the GNU linker (Linux and recent *BSD,
# in rare cases Solaris) typically need '-Wl,-export-dynamic' (i.e. pass
# -export-dynamic to the linker - also known as -rdynamic and some other
# variants); some sysVr4 system(s) instead need(s) '-Wl,-Bexport'.
# AIX 4.x (perhaps only for x>=2) wants -Wl,-bexpall,-brtl and doesn't
# reliably return an error for others, thus we separate it out.
# Otherwise we assume that if the linker accepts the flag, it is needed.
AC_MSG_CHECKING(for extra flags needed to export symbols)
DEXPORT=""
case $host_os in
aix4*)
DEXPORT=-Wl,-bexpall,-brtl
;;
bsdi*)
DEXPORT="-rdynamic "
;;
win32)
DEXPORT=""
;;
*)
save_ldflags="$LDFLAGS"
LDFLAGS=-Wl,-export-dynamic
AC_TRY_LINK(,,[DEXPORT=-Wl,-export-dynamic], [
LDFLAGS=-Wl,-Bexport
AC_TRY_LINK(,,[DEXPORT=-Wl,-Bexport],
AC_MSG_RESULT(none))])
LDFLAGS="$save_ldflags"
;;
esac
AC_SUBST(DEXPORT)
case "x$DEXPORT" in
"x")
AC_MSG_RESULT([none]);;
*)
AC_MSG_RESULT([$DEXPORT]);;
esac
# Check for Solaris/ultrasparc /dev/perfmon interface
# (also needs gcc specific asm instructions)
case "${host}:${GCC}" in
sparc-*-solaris*:yes)
AC_DEFINE(HAVE_SOLARIS_SPARC_PERFMON,[1],
[define if you have the Solaris/ultrasparc /dev/perfmon interface])
;;
*)
;;
esac
dnl ----------------------------------------------------------------------
dnl Checks for libraries.
dnl ----------------------------------------------------------------------
AC_CHECK_LIB(m, sin)
AC_CHECK_LIB(dl, dlopen)
AC_CHECK_LIB(inet, main)
AC_CHECK_LIB(util, openpty)
dnl Try to find a thread library.
dnl
dnl ETHR_LIB_NAME, ETHR_LIBS, ETHR_X_LIBS, ETHR_THR_LIB_BASE and ETHR_DEFS
dnl are set by ERL_FIND_ETHR_LIB
ERL_FIND_ETHR_LIB
if test "X$ETHR_LIB_NAME" = "X"; then
found_threads=no
else
found_threads=yes
fi
ERTS_BUILD_SMP_EMU=$enable_smp_support
AC_MSG_CHECKING(whether an emulator with smp support should be built)
case $ERTS_BUILD_SMP_EMU in
yes)
AC_MSG_RESULT(yes; enabled by user)
;;
no)
AC_MSG_RESULT(no; disabled by user)
;;
unknown)
AC_TRY_COMPILE([],[
#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
;
#else
#error old or no gcc
#endif
],
gcc_smp=okgcc,
gcc_smp=oldornogcc)
ERTS_BUILD_SMP_EMU=yes
case "$enable_threads-$gcc_smp-$found_threads-$host_os" in
no-*)
AC_MSG_RESULT(no; threads disabled by user)
ERTS_BUILD_SMP_EMU=no
;;
*-okgcc-yes-*)
AC_MSG_RESULT(yes)
ERTS_BUILD_SMP_EMU=yes
;;
*-win32)
AC_MSG_RESULT(yes)
ERTS_BUILD_SMP_EMU=yes
;;
*-oldornogcc-*)
AC_MSG_RESULT(no; old gcc or no gcc found)
ERTS_BUILD_SMP_EMU=no
;;
*)
AC_MSG_RESULT(no)
ERTS_BUILD_SMP_EMU=no
;;
esac
;;
esac
if test $ERTS_BUILD_SMP_EMU = yes; then
if test $found_threads = no; then
AC_MSG_ERROR([cannot build smp enabled emulator since no thread library was found])
fi
AC_DEFINE(ERTS_HAVE_SMP_EMU, 1, [Define if the smp emulator is built])
enable_threads=force
fi
AC_SUBST(ERTS_BUILD_SMP_EMU)
#
# Figure out if the emulator should use threads. The default is set above
# in the enable_threads variable. It can have the following values:
#
# no single-threaded emulator requested
# yes multi-threaded emulator requested
# force multi-threaded emulator required
#
# EMU_THR_LIB_NAME, EMU_THR_LIBS, EMU_THR_X_LIBS, and EMU_THR_DEFS is
# used by the emulator, and can (but should not) be used by applications
# that only require thread support when the emulator has thread support.
# Other applications should use ETHR_LIB_NAME, ETHR_LIBS, ETHR_X_LIBS,
# and ETHR_DEFS.
#
AC_MSG_CHECKING(whether the emulator should use threads)
EMU_THR_LIB_NAME=
EMU_THR_X_LIBS=
EMU_THR_LIBS=
EMU_THR_DEFS=
emu_threads=no
case "$enable_threads"-"$host_os" in
*-win32)
# The windows erlang emulator can never run without threads.
# It has to be enabled or the emulator will crash. Until that
# is fixed we force threads on win32.
enable_threads=force ;;
yes-osf*)
# The emulator hang when threads are enabled on osf
AC_MSG_ERROR(unresolved problems exist with threads on this platform) ;;
*) ;;
esac
case "$enable_threads"-"$found_threads" in
force-yes)
emu_threads=yes
AC_MSG_RESULT(yes; thread support required and therefore forced) ;;
yes-yes)
emu_threads=yes
AC_MSG_RESULT(yes; enabled by user) ;;
unknown-yes)
case $host_os in
solaris*|linux*|darwin*|win32)
emu_threads=yes
AC_MSG_RESULT(yes; default on this platform)
;;
*)
AC_MSG_RESULT(no; default on this platform)
;;
esac
;;
no-yes)
AC_MSG_RESULT(no; thread support found but disabled by user) ;;
unknown-no|no-no)
AC_MSG_RESULT(no) ;;
force-no)
AC_MSG_ERROR(thread support required but not found) ;;
yes-no)
AC_MSG_ERROR(thread support enabled by user but not found) ;;
*)
AC_MSG_ERROR(internal error) ;;
esac
if test $emu_threads != yes; then
enable_lock_check=no
enable_lock_count=no
else
# Threads enabled for emulator
EMU_THR_LIB_NAME=$ETHR_LIB_NAME
EMU_THR_X_LIBS=$ETHR_X_LIBS
EMU_THR_LIBS=$ETHR_LIBS
EMU_THR_DEFS=$ETHR_DEFS
ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS threads"
AC_MSG_CHECKING(whether lock checking should be enabled)
AC_MSG_RESULT($enable_lock_check)
if test "x$enable_lock_check" != "xno"; then
EMU_THR_DEFS="$EMU_THR_DEFS -DERTS_ENABLE_LOCK_CHECK"
fi
AC_MSG_CHECKING(whether lock counters should be enabled)
AC_MSG_RESULT($enable_lock_count)
if test "x$enable_lock_count" != "xno"; then
EMU_THR_DEFS="$EMU_THR_DEFS -DERTS_ENABLE_LOCK_COUNT"
fi
disable_child_waiter_thread=no
case $host_os in
solaris*)
enable_child_waiter_thread=yes
;;
linux*)
AC_DEFINE(USE_RECURSIVE_MALLOC_MUTEX,[1],
[Define if malloc should use a recursive mutex])
AC_MSG_CHECKING([whether dlopen() needs to be called before first call to dlerror()])
if test "x$ETHR_THR_LIB_BASE_NAME" != "xnptl"; then
AC_DEFINE(ERTS_NEED_DLOPEN_BEFORE_DLERROR,[1],
[Define if dlopen() needs to be called before first call to dlerror()])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
if test "x$ETHR_THR_LIB_BASE_NAME" != "xnptl"; then
# Child waiter thread cannot be enabled
disable_child_waiter_thread=yes
enable_child_waiter_thread=no
fi
;;
win32)
# Child waiter thread cannot be enabled
disable_child_waiter_thread=yes
enable_child_waiter_thread=no
;;
*)
;;
esac
# Remove -D_WIN32_WINNT*, -DWINVER* and -D_GNU_SOURCE from EMU_THR_DEFS
# (defined in CFLAGS). Note that we want to keep these flags
# in ETHR_DEFS, but not in EMU_THR_DEFS.
new_emu_thr_defs=
for thr_def in $EMU_THR_DEFS; do
case $thr_def in
-D_GNU_SOURCE*|-D_WIN32_WINNT*|-DWINVER*)
;;
*)
new_emu_thr_defs="$new_emu_thr_defs $thr_def"
;;
esac
done
EMU_THR_DEFS=$new_emu_thr_defs
AC_MSG_CHECKING(whether the child waiter thread should be enabled)
if test $enable_child_waiter_thread = yes; then
AC_DEFINE(ENABLE_CHILD_WAITER_THREAD,[1],
[Define if you want to enable child waiter thread])
AC_MSG_RESULT(yes)
else
case $ERTS_BUILD_SMP_EMU-$disable_child_waiter_thread in
yes-no)
AC_MSG_RESULT([yes on SMP build, but not on non-SMP build]);;
*-yes)
AC_DEFINE(DISABLE_CHILD_WAITER_THREAD,[1],
[Define if you want to disable child waiter thread])
AC_MSG_RESULT(no);;
*)
AC_MSG_RESULT(no);;
esac
fi
fi
AC_SUBST(EMU_THR_LIB_NAME)
AC_SUBST(EMU_THR_X_LIBS)
AC_SUBST(EMU_THR_LIBS)
AC_SUBST(EMU_THR_DEFS)
if test "x$enable_lock_check" = "xno"; then
EMU_LOCK_CHECKING=no
else
EMU_LOCK_CHECKING=yes
fi
AC_SUBST(EMU_LOCK_CHECKING)
ERTS_INTERNAL_X_LIBS=
AC_CHECK_LIB(kstat, kstat_open,
[AC_DEFINE(HAVE_KSTAT, 1, [Define if you have kstat])
ERTS_INTERNAL_X_LIBS="$ERTS_INTERNAL_X_LIBS -lkstat"])
AC_SUBST(ERTS_INTERNAL_X_LIBS)
dnl THR_LIBS and THR_DEFS are only used by odbc
THR_LIBS=$ETHR_X_LIBS
THR_DEFS=$ETHR_DEFS
AC_SUBST(THR_LIBS)
AC_SUBST(THR_DEFS)
dnl ----------------------------------------------------------------------
dnl Try to figure out where to get the termcap functions from.
dnl We use tgetent(), tgetflag(), tgetnum(), tgetstr() and tputs()
dnl ----------------------------------------------------------------------
TERMCAP_LIB=
if test "x$with_termcap" != "xno" &&
test "X$host" != "Xwin32"; then
# try these libs
termcap_libs="ncurses curses termcap termlib"
for termcap_lib in $termcap_libs; do
AC_CHECK_LIB($termcap_lib, tgetent, TERMCAP_LIB="-l$termcap_lib")
if test "x$TERMCAP_LIB" != "x"; then
break
fi
done
if test "x$TERMCAP_LIB" = "x"; then
AC_MSG_ERROR([No curses library functions found])
fi
fi
AC_SUBST(TERMCAP_LIB)
if test "x$TERMCAP_LIB" != "x"; then
AC_DEFINE(HAVE_TERMCAP, 1, [Define if termcap functions exists])
fi
dnl -------------
dnl zlib
dnl -------------
AC_ARG_ENABLE(shared-zlib,
[ --enable-shared-zlib enable using shared zlib library
--disable-shared-zlib disable shared zlib, compile own zlib source (default)],
[ case "$enableval" in
no) enable_shared_zlib=no ;;
*) enable_shared_zlib=yes ;;
esac ], enable_shared_zlib=no)
Z_LIB=
if test "x$enable_shared_zlib" = "xyes" ; then
AC_CHECK_LIB(z, adler32_combine,
[Z_LIB="-lz"
AC_DEFINE(HAVE_LIBZ, 1, [Define to 1 if you have the `z' library (-lz).])],
[AC_MSG_ERROR([cannot find any shared zlib])])
else
AC_MSG_NOTICE([Using own zlib source])
fi
AC_SUBST(Z_LIB)
dnl
dnl This test kindly borrowed from Tcl
dnl
#--------------------------------------------------------------------
# Check for the existence of the -lsocket and -lnsl libraries.
# The order here is important, so that they end up in the right
# order in the command line generated by make. Here are some
# special considerations:
# 1. Use "connect" and "accept" to check for -lsocket, and
# "gethostbyname" to check for -lnsl.
# 2. Use each function name only once: can't redo a check because
# autoconf caches the results of the last check and won't redo it.
# 3. Use -lnsl and -lsocket only if they supply procedures that
# aren't already present in the normal libraries. This is because
# IRIX 5.2 has libraries, but they aren't needed and they're
# bogus: they goof up name resolution if used.
# 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
# To get around this problem, check for both libraries together
# if -lsocket doesn't work by itself.
#--------------------------------------------------------------------
erl_checkBoth=0
AC_CHECK_FUNC(connect, erl_checkSocket=0, erl_checkSocket=1)
if test "$erl_checkSocket" = 1; then
AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", erl_checkBoth=1)
fi
if test "$erl_checkBoth" = 1; then
tk_oldLibs=$LIBS
LIBS="$LIBS -lsocket -lnsl"
AC_CHECK_FUNC(accept, erl_checkNsl=0, [LIBS=$tk_oldLibs])
fi
AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main, [LIBS="$LIBS -lnsl"]))
AC_CHECK_FUNC(gethostbyname_r,have_gethostbyname_r=yes)
dnl
dnl These gethostbyname thingies use old style AC_DEFINE for BC with ancient
dnl autoconf...
dnl
if test "$have_gethostbyname_r" = yes; then
# OK, so we have gethostbyname_r() - but do we know how to call it...?
# (if not, HAVE_GETHOSTBYNAME_R will not be defined at all)
case $host_os in
solaris2*)
AC_DEFINE(HAVE_GETHOSTBYNAME_R, GHBN_R_SOLARIS,
[Define to flavour of gethostbyname_r])
;;
aix4*)
# AIX version also needs "struct hostent_data" defn
AC_TRY_COMPILE([#include <netdb.h>],
[struct hostent_data hd;],
AC_DEFINE(HAVE_GETHOSTBYNAME_R, GHBN_R_AIX,
[Define to flavour of gethostbyname_r]))
;;
*)
AC_EGREP_CPP(yes,[#include <stdio.h>
#ifdef __GLIBC__
yes
#endif
], AC_DEFINE(HAVE_GETHOSTBYNAME_R, GHBN_R_GLIBC,
[Define to flavour of gethostbyname_r]))
;;
esac
fi
AC_MSG_CHECKING(for working posix_openpt implementation)
AC_TRY_LINK([
#define _XOPEN_SOURCE 600
#include <stdlib.h>
#include <fcntl.h>
],
[
int mfd = posix_openpt(O_RDWR);
ptsname(mfd);
grantpt(mfd);
unlockpt(mfd);
return mfd;
], working_posix_openpt=yes, working_posix_openpt=no)
if test "X$working_posix_openpt" = "Xyes"; then
AC_DEFINE(HAVE_WORKING_POSIX_OPENPT, [1],
[Define if you have a working posix_openpt implementation])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl Check for usage of sockaddr_in in netdb.h
dnl somewhat ugly check, I check for presence of the string and that
dnl compilation works. If either fails I assume it's not needed.
dnl Seems only to be needed on a patched version of solaris2.5.1, with
dnl netdb.h version 1.18.
AC_MSG_CHECKING([if netdb.h requires netinet/in.h to be previously included])
AC_EGREP_CPP(sockaddr_in,
[#include <netdb.h>],
AC_TRY_COMPILE([#include <netinet/in.h>
#include <netdb.h>],
[return 0;],
need_in_h=yes,
need_in_h=no),
need_in_h=no)
if test $need_in_h = yes; then
AC_DEFINE(NETDB_H_NEEDS_IN_H,[1],
[Define if netdb.h needs struct sockaddr_in ans in.h CAN be included before])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl Check for type socklen_t
dnl
AC_MSG_CHECKING([for socklen_t])
AC_TRY_COMPILE( [#include <sys/socket.h>],
[socklen_t test;],
have_socklen_t=yes,
have_socklen_t=no),
if test $have_socklen_t = yes; then
AC_DEFINE(HAVE_SOCKLEN_T,[1],[Define if we have socklen_t])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl h_errno isn't always declared in netdb.h, and with some definitions
dnl (e.g. function call for thread-safe) a simple 'extern int' may conflict
dnl (we do assume that h_errno exists at all...)
AC_CACHE_CHECK([for h_errno declaration in netdb.h],
ac_cv_decl_h_errno,
[AC_TRY_COMPILE([#include <netdb.h>], [int err = h_errno;],
ac_cv_decl_h_errno=yes, ac_cv_decl_h_errno=no)])
if test $ac_cv_decl_h_errno = yes; then
AC_DEFINE(H_ERRNO_DECLARED,[1],
[define if h_errno is declared (in some way) in a system header file])
fi
dnl ----------------------------------------------------------------------
dnl Checks for header files.
dnl ----------------------------------------------------------------------
dnl We sometimes need EMU_THR_DEFS in order to find certain headers.
saved_cppflags=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $EMU_THR_DEFS"
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_HEADER_TIME
dnl Interactive UX needs <net/errno.h> for socket related error codes.
dnl Some Linuxes needs <sys/socketio.h> instead of <sys/sockio.h>
dnl
AC_CHECK_HEADERS(fcntl.h limits.h unistd.h syslog.h dlfcn.h ieeefp.h \
sys/types.h sys/stropts.h sys/sysctl.h \
sys/ioctl.h sys/time.h sys/uio.h \
sys/socket.h sys/sockio.h sys/socketio.h \
net/errno.h malloc.h mach-o/dyld.h arpa/nameser.h \
pty.h util.h utmp.h langinfo.h poll.h)
AC_CHECK_HEADER(sys/resource.h,
[AC_DEFINE(HAVE_SYS_RESOURCE_H, 1,
[Define to 1 if you have the <sys/resource.h> header file])
AC_CHECK_DECLS([getrlimit, setrlimit, RLIMIT_STACK],
[],[],
[#include <sys/resource.h>])],
[],[])
dnl Check if we have kernel poll support
have_kernel_poll=no
AC_CHECK_HEADER(sys/event.h, have_kernel_poll=kqueue)
AC_CHECK_HEADER(sys/epoll.h, have_kernel_poll=epoll)
AC_CHECK_HEADER(sys/devpoll.h, have_kernel_poll=/dev/poll)
dnl Check for kernel SCTP support
AC_SUBST(LIBSCTP)
if test "x$enable_sctp" == "xyes" ; then
AC_CHECK_HEADER(netinet/sctp.h,
[LIBSCTP=libsctp.so.1
AC_DEFINE(HAVE_SCTP_H, [1],
[Define to 1 if you have the <netinet/sctp.h> header file])],
[],
[#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
AC_CHECK_DECLS([SCTP_UNORDERED, SCTP_ADDR_OVER, SCTP_ABORT,
SCTP_EOF, SCTP_SENDALL, SCTP_ADDR_CONFIRMED], [], [],
[#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#include <netinet/sctp.h>
])
AC_CHECK_MEMBERS([struct sctp_paddrparams.spp_pathmtu,
struct sctp_paddrparams.spp_sackdelay,
struct sctp_paddrparams.spp_flags,
struct sctp_remote_error.sre_data,
struct sctp_send_failed.ssf_data], [], [],
[#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#include <netinet/sctp.h>
])
fi
HAVE_VALGRIND=no
AC_CHECK_HEADER(valgrind/valgrind.h, HAVE_VALGRIND=yes)
AC_SUBST(HAVE_VALGRIND)
LM_DECL_SO_BSDCOMPAT
LM_DECL_INADDR_LOOPBACK
LM_DECL_SYS_ERRLIST
AC_CACHE_CHECK([if windows.h includes winsock2.h],
erts_cv_windows_h_includes_winsock2_h,
AC_TRY_COMPILE([#include <windows.h>
],
[#ifndef _WINSOCK2API_
#error winsock2.h not included
#endif
int i = 1;
],
erts_cv_windows_h_includes_winsock2_h=yes,
erts_cv_windows_h_includes_winsock2_h=no))
if test $erts_cv_windows_h_includes_winsock2_h = yes; then
AC_DEFINE(WINDOWS_H_INCLUDES_WINSOCK2_H, 1, \
[Define if windows.h includes winsock2.h])
fi
dnl restore CPPFLAGS
CPPFLAGS=$saved_cppflags
dnl ----------------------------------------------------------------------
dnl Checks for typedefs, structures, and compiler characteristics.
dnl ----------------------------------------------------------------------
AC_C_CONST
AC_TYPE_SIGNAL
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_STRUCT_TM
LM_STRUCT_SOCKADDR_SA_LEN
LM_STRUCT_EXCEPTION
AC_CHECK_SIZEOF(char, 1)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(void *)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(size_t)
AC_CHECK_SIZEOF(off_t)
BITS64=
if test $ac_cv_sizeof_void_p = 8; then
BITS64=yes
fi
AC_SUBST(BITS64)
if test "x$ac_compiler_gnu" = "xyes"; then
AC_MSG_CHECKING([if we should add -fno-tree-copyrename to CFLAGS for computed gotos to work properly])
AC_TRY_COMPILE([],[
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
;
#else
#error old and ok
#endif
],
no_tree_copyrename=yes,
no_tree_copyrename=no)
if test "x$no_tree_copyrename" = "xyes"; then
CFLAGS="$CFLAGS -fno-tree-copyrename"
AC_MSG_RESULT(yes, adjusting CFLAGS)
else
AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING([for broken gcc-4.3.0 compiler])
AC_TRY_RUN([
/* pr36339.c */
extern void abort (void);
typedef unsigned long my_uintptr_t;
int check_a(my_uintptr_t tagged_ptr);
int __attribute__((noinline)) try_a(my_uintptr_t x)
{
my_uintptr_t heap[2];
my_uintptr_t *hp = heap;
hp[0] = x;
hp[1] = 0;
return check_a((my_uintptr_t)(void*)((char*)hp + 1));
}
int __attribute__((noinline)) check_a(my_uintptr_t tagged_ptr)
{
my_uintptr_t *hp = (my_uintptr_t*)(void*)((char*)tagged_ptr - 1);
if (hp[0] == 42 && hp[1] == 0)
return 0;
return -1;
}
int main(void)
{
if (try_a(42) < 0)
abort ();
return 0;
}
], gcc_4_3_0_bug=no, gcc_4_3_0_bug=yes, gcc_4_3_0_bug=cross)
case $gcc_4_3_0_bug in
yes|no)
gcc_4_3_0_bug_result=$gcc_4_3_0_bug;;
cross)
gcc_dumped_vsn=`$CC -dumpversion 2>/dev/null`
case gcc-$gcc_dumped_vsn in
gcc-4.3.0) gcc_4_3_0_bug=yes;;
*) gcc_4_3_0_bug=no;;
esac
gcc_4_3_0_bug_result="$gcc_4_3_0_bug; could not run test since cross compiling, checked version number ($gcc_dumped_vsn) instead";;
esac
AC_MSG_RESULT([$gcc_4_3_0_bug_result])
if test $gcc_4_3_0_bug = yes; then
AC_MSG_ERROR([This gcc miscompiles the Erlang runtime system; please use a different version])
fi
fi
if test "x$erl_xcomp_bigendian" != "x"; then
ac_cv_c_bigendian=$erl_xcomp_bigendian
fi
AC_C_BIGENDIAN
dnl ----------------------------------------------------------------------
dnl Checks for library functions.
dnl ----------------------------------------------------------------------
dnl We may need the thread library and thread flags in order to find right stuff
saved_cppflags=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $EMU_THR_DEFS"
saved_libs=$LIBS
LIBS="$LIBS $EMU_THR_X_LIBS"
dnl Check if we have these, in which case we'll try to build
dnl inet_gethost with ipv6 support.
AC_CHECK_FUNC(getaddrinfo, have_getaddrinfo=yes, have_getaddrinfo=no)
if test $have_getaddrinfo = yes; then
AC_MSG_CHECKING([whether getaddrinfo accepts enough flags])
AC_TRY_RUN([
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netdb.h>
int main(int argc, char **argv) {
struct addrinfo hints, *ai;
memset(&hints, 0, sizeof(hints));
hints.ai_flags = (AI_CANONNAME|AI_V4MAPPED|AI_ADDRCONFIG);
hints.ai_socktype = SOCK_STREAM;
hints.ai_family = AF_INET6;
if (getaddrinfo("::", NULL, &hints, &ai) == 0) {
freeaddrinfo(ai);
exit(0);
} else {
exit(1);
}
}
],, have_getaddrinfo=no,
if test "x$erl_xcomp_getaddrinfo" != "x"; then
have_getaddrinfo=$erl_xcomp_getaddrinfo
else
have_getaddrinfo=no
fi)
if test $have_getaddrinfo = yes; then
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GETADDRINFO, [1],
[Define to 1 if you have a good `getaddrinfo' function.])
else
AC_MSG_RESULT(no)
fi
fi
AC_CHECK_FUNCS([getnameinfo getipnodebyname getipnodebyaddr gethostbyname2])
AC_CHECK_FUNCS([ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlopen \
pread pwrite writev memmove strerror strerror_r strncasecmp \
gethrtime localtime_r gmtime_r mremap memcpy mallopt \
sbrk _sbrk __sbrk brk _brk __brk \
flockfile fstat strlcpy strlcat setsid posix2time setlocale nl_langinfo poll])
if test "X$host" = "Xwin32"; then
ac_cv_func_setvbuf_reversed=yes
fi
AC_FUNC_SETVBUF_REVERSED
disable_vfork=false
if test "x$EMU_THR_LIB_NAME" != "x"; then
AC_MSG_CHECKING([if vfork is known to hang multithreaded applications])
case $host_os in
osf*)
AC_MSG_RESULT(yes)
disable_vfork=true;;
*)
AC_MSG_RESULT(no);;
esac
fi
if test $disable_vfork = false; then
AC_FUNC_VFORK
if test $ac_cv_func_vfork_works = no; then
disable_vfork=true
fi
fi
if test $disable_vfork = true; then
AC_DEFINE(DISABLE_VFORK, 1, [Define if you want to disable vfork.])
fi
AC_FUNC_VPRINTF
AC_FUNC_MMAP
dnl The AC_DEFINEs are necessary for autoheader to work. :-(
dnl for gzio
LM_CHECK_FUNC_DECL(fread, [extern int fread();],,
AC_DEFINE(HAVE_CONFLICTING_FREAD_DECLARATION,[1],[Define if you have a decl of fread that conflicts with int fread]))
dnl Checking with TRY_LINK since putc_unlocked might be (probably is) a macro
AC_CACHE_CHECK([for putc_unlocked],
erts_cv_putc_unlocked,
AC_TRY_LINK([#include <stdio.h>],
[int res = putc_unlocked('x',stdout);],
erts_cv_putc_unlocked=yes,
erts_cv_putc_unlocked=no))
if test $erts_cv_putc_unlocked = yes; then
AC_DEFINE(HAVE_PUTC_UNLOCKED, 1, [Define if you have putc_unlocked])
fi
dnl Checking with TRY_LINK since fwrite_unlocked might be a macro
AC_CACHE_CHECK([for fwrite_unlocked],
erts_cv_fwrite_unlocked,
AC_TRY_LINK([#include <stdio.h>],
[size_t res = fwrite_unlocked(NULL,sizeof(char),0,stdout);],
erts_cv_fwrite_unlocked=yes,
erts_cv_fwrite_unlocked=no))
if test $erts_cv_fwrite_unlocked = yes; then
AC_DEFINE(HAVE_FWRITE_UNLOCKED, 1, [Define if you have fwrite_unlocked])
fi
dnl Need by run_erl.
AC_CHECK_FUNCS([openpty])
dnl ----------------------------------------------------------------------
dnl Checks for features/quirks in the system that affects Erlang.
dnl ----------------------------------------------------------------------
AC_MSG_CHECKING([for sched_getaffinity/sched_setaffinity])
AC_TRY_COMPILE([#include <sched.h>],
[
#ifndef CPU_SETSIZE
#error no CPU_SETSIZE
#endif
int res;
cpu_set_t cpuset;
CPU_ZERO(&cpuset);
CPU_SET(1, &cpuset);
res = sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
res = sched_getaffinity(0, sizeof(cpu_set_t), &cpuset);
res = CPU_ISSET(1, &cpuset);
CPU_CLR(1, &cpuset);
],
sched_xetaffinity=yes,
sched_xetaffinity=no)
AC_MSG_RESULT([$sched_xetaffinity])
if test $sched_xetaffinity = yes; then
AC_DEFINE(HAVE_SCHED_xETAFFINITY, 1, [Define if you have sched_getaffinity/sched_setaffinity])
fi
AC_MSG_CHECKING([for pset functionality])
AC_TRY_COMPILE([#include <sys/pset.h>],
[
int res;
psetid_t id = PS_MYID;
int type = PS_PRIVATE;
uint_t numcpus = 1024;
processorid_t cpulist[1024];
res = pset_info(id, &type, &numcpus, &cpulist[0]);
],
pset_functionality=yes,
pset_functionality=no)
AC_MSG_RESULT([$pset_functionality])
if test $pset_functionality = yes; then
AC_DEFINE(HAVE_PSET, 1, [Define if you have pset functionality])
fi
AC_MSG_CHECKING([for processor_bind functionality])
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/processor.h>
#include <sys/procset.h>
],
[
int res = processor_bind(P_LWPID, P_MYID, PBIND_NONE, NULL);
],
processor_bind_functionality=yes,
processor_bind_functionality=no)
AC_MSG_RESULT([$processor_bind_functionality])
if test $processor_bind_functionality = yes; then
AC_DEFINE(HAVE_PROCESSOR_BIND, 1, [Define if you have processor_bind functionality])
fi
AC_CACHE_CHECK([for 'end' symbol],
erts_cv_have_end_symbol,
[AC_TRY_LINK([],
[extern char end; {char *x = &end; *x= 0;}],
erts_cv_have_end_symbol=yes,
erts_cv_have_end_symbol=no)])
if test $erts_cv_have_end_symbol = yes; then
AC_DEFINE(HAVE_END_SYMBOL, 1, [Define if you have the 'end' symbol])
fi
AC_CACHE_CHECK([for '_end' symbol],
erts_cv_have__end_symbol,
[AC_TRY_LINK([],
[extern char _end; {char *x = &_end; *x= 0;}],
erts_cv_have__end_symbol=yes,
erts_cv_have__end_symbol=no)])
if test $erts_cv_have__end_symbol = yes; then
AC_DEFINE(HAVE__END_SYMBOL, 1, [Define if you have the '_end' symbol])
fi
AC_CACHE_CHECK([if __after_morecore_hook can track malloc()s core memory use],
erts_cv___after_morecore_hook_can_track_malloc,
[AC_TRY_RUN([
#include <stdlib.h>
#ifdef HAVE_MALLOC_H
# include <malloc.h>
#endif
#if defined(HAVE_END_SYMBOL)
extern char end;
#elif defined(HAVE__END_SYMBOL)
extern char _end;
#endif
#ifndef USE_THREADS
#undef ETHR_PTHREADS
#endif
#ifdef ETHR_PTHREADS
# ifdef ETHR_HAVE_PTHREAD_H
# include <pthread.h>
# else
# ifdef ETHR_HAVE_MIT_PTHREAD_H
# include <pthread/mit/pthread.h>
# endif
# endif
# define N_THR 5
#else
# define N_THR 1
#endif
static char *heap_start = NULL;
static char *heap_end = NULL;
void update_heap_size(void)
{
heap_end = (char *) sbrk(0);
}
void init_hook(void)
{
#if defined(HAVE_END_SYMBOL)
heap_start = &end;
#elif defined(HAVE__END_SYMBOL)
heap_start = &_end;
#else
heap_start = sbrk(0);
#endif
__after_morecore_hook = update_heap_size;
}
void (*__malloc_initialize_hook) (void) = init_hook;
static int
check_malloc(int size)
{
char *p = (char *) malloc(size);
if (!heap_start || !heap_end) return 0;
if (!p) return 0;
if (p < heap_start || heap_end <= p) return 0;
if (p + size < heap_start || heap_end < p + size) return 0;
return 1;
}
#ifdef ETHR_PTHREADS
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
#endif
static void *
do_tests(void *vresp)
{
int i, ok = 0;
#ifdef ETHR_PTHREADS
if (pthread_mutex_lock(&mutex) != 0)
return NULL;
#endif
for (i = 0; i < 10; i++)
if (!check_malloc(1000))
goto failed;
for (i = 0; i < 100; i++)
if (!check_malloc(1))
goto failed;
if (!check_malloc(1024*1024+1))
goto failed;
if (!check_malloc(10*1024*1024+1))
goto failed;
ok = 1;
failed:
#ifdef ETHR_PTHREADS
if (pthread_mutex_unlock(&mutex) != 0)
return NULL;
#endif
if (ok)
*((int *) vresp) = 0;
return NULL;
}
int main(void)
{
int res[N_THR], i;
#ifdef ETHR_PTHREADS
pthread_t tid[N_THR];
#endif
#if defined(HAVE_MALLOPT) && defined(M_MMAP_MAX)
(void) mallopt(M_MMAP_MAX, 0);
#endif
for (i = 0; i < N_THR; i++)
res[i] = 1;
#ifdef ETHR_PTHREADS
for (i = 1; i < N_THR; i++)
if (pthread_create(&tid[i], NULL, do_tests, &res[i]) != 0)
return 1;
#endif
(void) do_tests(&res[0]);
#ifdef ETHR_PTHREADS
for (i = 1; i < N_THR; i++)
if (pthread_join(tid[i], NULL) != 0)
return 1;
#endif
for (i = 0; i < N_THR; i++)
if (res[i])
return 1;
return 0;
}
],
erts_cv___after_morecore_hook_can_track_malloc=yes,
erts_cv___after_morecore_hook_can_track_malloc=no,
if test "x$erl_xcomp_after_morecore_hook" != "x"; then
erts_cv___after_morecore_hook_can_track_malloc=$erl_xcomp_after_morecore_hook
else
erts_cv___after_morecore_hook_can_track_malloc=no
fi)])
if test $erts_cv___after_morecore_hook_can_track_malloc = yes; then
AC_DEFINE(ERTS___AFTER_MORECORE_HOOK_CAN_TRACK_MALLOC, 1, \
[Define if __after_morecore_hook can track malloc()s core memory use.])
fi
if test "x$ac_cv_func_sbrk" = "xyes"; then
AC_CACHE_CHECK([types of sbrk()s return value and argument],
erts_cv_sbrk_ret_arg_types,
[
erts_cv_sbrk_ret_arg_types=unknown
ret_types="void *,char *"
arg_types="intptr_t,ptrdiff_t,int,long"
save_ifs="$IFS"; IFS=","
for rtype in $ret_types; do
for atype in $arg_types; do
IFS=$save_ifs
AC_TRY_COMPILE([#include <sys/types.h>
#include <unistd.h>],
[$rtype sbrk($atype incr);],
[erts_cv_sbrk_ret_arg_types="$rtype,$atype"])
IFS=","
if test "$erts_cv_sbrk_ret_arg_types" != "unknown"; then
break 2
fi
done
done
IFS=$save_ifs])
if test "$erts_cv_sbrk_ret_arg_types" != "unknown"; then
save_ifs="$IFS"; IFS=","
read ret_type arg_type <<EOF
$erts_cv_sbrk_ret_arg_types
EOF
IFS=$save_ifs
AC_DEFINE_UNQUOTED(SBRK_RET_TYPE, $ret_type, \
[Define the sbrk() return type.])
AC_DEFINE_UNQUOTED(SBRK_ARG_TYPE, $arg_type, \
[Define the sbrk() argument type.])
fi
fi
if test $ac_cv_func_brk = yes; then
AC_CACHE_CHECK([types of brk()s return value and argument],
erts_cv_brk_ret_arg_types,
[
erts_cv_brk_ret_arg_types=unknown
ret_types="int,long,char *,void *"
arg_types="void *,const void *,char *,const char *"
save_ifs="$IFS"; IFS=","
for rtype in $ret_types; do
for atype in $arg_types; do
IFS=$save_ifs
AC_TRY_COMPILE([#include <sys/types.h>
#include <unistd.h>],
[$rtype brk($atype endds);],
[erts_cv_brk_ret_arg_types="$rtype,$atype"])
IFS=","
if test "$erts_cv_brk_ret_arg_types" != "unknown"; then
break 2
fi
done
done
IFS=$save_ifs])
if test "$erts_cv_brk_ret_arg_types" != "unknown"; then
save_ifs="$IFS"; IFS=","
read ret_type arg_type <<EOF
$erts_cv_brk_ret_arg_types
EOF
IFS=$save_ifs
AC_DEFINE_UNQUOTED(BRK_RET_TYPE, $ret_type, \
[Define the brk() return type.])
AC_DEFINE_UNQUOTED(BRK_ARG_TYPE, $arg_type, \
[Define the brk() argument type.])
fi
fi
if test $ac_cv_func_sbrk = yes; then
AC_CACHE_CHECK([if sbrk()/brk() wrappers can track malloc()s core memory use],
erts_cv_brk_wrappers_can_track_malloc,
[AC_TRY_RUN([
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#ifdef HAVE_DLFCN_H
# include <dlfcn.h>
#endif
/*
* Our implementation requires that we have sbrk(), and 'end' or '_end'.
*/
#if !defined(HAVE_SBRK)
# error no sbrk()
#endif
#if defined(HAVE_END_SYMBOL)
extern char end;
#elif defined(HAVE__END_SYMBOL)
extern char _end;
#else
# error no 'end' nor '_end'
#endif
#ifndef USE_THREADS
#undef ETHR_PTHREADS
#endif
#ifdef ETHR_PTHREADS
# ifdef ETHR_HAVE_PTHREAD_H
# include <pthread.h>
# else
# ifdef ETHR_HAVE_MIT_PTHREAD_H
# include <pthread/mit/pthread.h>
# endif
# endif
# define N_THR 5
#else
# define N_THR 1
#endif
#define SBRK_IMPL(RET_TYPE, SBRK, ARG_TYPE) \
RET_TYPE SBRK (ARG_TYPE); \
static RET_TYPE (*real_ ## SBRK)(ARG_TYPE) = NULL; \
RET_TYPE \
SBRK (ARG_TYPE arg) \
{ \
RET_TYPE res; \
if (!real_ ## SBRK) real_ ## SBRK = dlsym(RTLD_NEXT, #SBRK); \
res = (*real_ ## SBRK)(arg); \
if (res != (RET_TYPE) -1) heap_end = (char *) (*real_ ## SBRK)(0); \
return res; \
}
#define BRK_IMPL(RET_TYPE, BRK, ARG_TYPE) \
RET_TYPE BRK (ARG_TYPE); \
static RET_TYPE (*real_ ## BRK)(ARG_TYPE) = NULL; \
RET_TYPE \
BRK (ARG_TYPE arg) \
{ \
RET_TYPE res; \
if (!real_ ## BRK) real_ ## BRK = dlsym(RTLD_NEXT, #BRK); \
res = (*real_ ## BRK)(arg); \
if (res != (RET_TYPE) -1) heap_end = (char *) arg; \
return res; \
}
static char *heap_start = NULL;
static char *heap_end = NULL;
SBRK_IMPL(SBRK_RET_TYPE, sbrk, SBRK_ARG_TYPE)
#ifdef HAVE_BRK
BRK_IMPL(BRK_RET_TYPE, brk, BRK_ARG_TYPE)
#endif
#ifdef HAVE__SBRK
SBRK_IMPL(SBRK_RET_TYPE, _sbrk, SBRK_ARG_TYPE)
#endif
#ifdef HAVE__BRK
BRK_IMPL(BRK_RET_TYPE, _brk, BRK_ARG_TYPE)
#endif
#ifdef HAVE___SBRK
SBRK_IMPL(SBRK_RET_TYPE, __sbrk, SBRK_ARG_TYPE)
#endif
#ifdef HAVE___BRK
BRK_IMPL(BRK_RET_TYPE, __brk, BRK_ARG_TYPE)
#endif
static int
check_malloc(int size)
{
char *p = (char *) malloc(size);
if (!heap_start || !heap_end) return 0;
if (!p) return 0;
if (p < heap_start || heap_end <= p) return 0;
if (p + size < heap_start || heap_end < p + size) return 0;
return 1;
}
#ifdef ETHR_PTHREADS
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
#endif
static void *
do_tests(void *vresp)
{
int i, ok = 0;
#ifdef ETHR_PTHREADS
if (pthread_mutex_lock(&mutex) != 0)
return NULL;
#endif
for (i = 0; i < 10; i++)
if (!check_malloc(1000))
goto failed;
for (i = 0; i < 100; i++)
if (!check_malloc(1))
goto failed;
if (!check_malloc(1024*1024+1))
goto failed;
if (!check_malloc(10*1024*1024+1))
goto failed;
ok = 1;
failed:
#ifdef ETHR_PTHREADS
if (pthread_mutex_unlock(&mutex) != 0)
return NULL;
#endif
if (ok)
*((int *) vresp) = 0;
return NULL;
}
int main(void)
{
int res[N_THR], i;
#ifdef ETHR_PTHREADS
pthread_t tid[N_THR];
#endif
#if defined(HAVE_END_SYMBOL)
heap_start = &end;
#elif defined(HAVE__END_SYMBOL)
heap_start = &_end;
#endif
#if defined(HAVE_MALLOPT) && defined(M_MMAP_MAX)
(void) mallopt(M_MMAP_MAX, 0);
#endif
for (i = 0; i < N_THR; i++)
res[i] = 1;
#ifdef ETHR_PTHREADS
for (i = 1; i < N_THR; i++)
if (pthread_create(&tid[i], NULL, do_tests, &res[i]) != 0)
return 1;
#endif
(void) do_tests(&res[0]);
#ifdef ETHR_PTHREADS
for (i = 1; i < N_THR; i++)
if (pthread_join(tid[i], NULL) != 0)
return 1;
#endif
for (i = 0; i < N_THR; i++)
if (res[i])
return 1;
return 0;
}
],
erts_cv_brk_wrappers_can_track_malloc=yes,
erts_cv_brk_wrappers_can_track_malloc=no,
if test "x$erl_xcomp_dlsym_brk_wrappers" != "x"; then
erts_cv_brk_wrappers_can_track_malloc=$erl_xcomp_dlsym_brk_wrappers
else
erts_cv_brk_wrappers_can_track_malloc=no
fi)])
if test $erts_cv_brk_wrappers_can_track_malloc = yes; then
AC_DEFINE(ERTS_BRK_WRAPPERS_CAN_TRACK_MALLOC, 1, \
[Define if sbrk()/brk() wrappers can track malloc()s core memory use])
fi
fi
dnl Restore LIBS
LIBS=$saved_libs
dnl restore CPPFLAGS
CPPFLAGS=$saved_cppflags
LM_SYS_IPV6
LM_SYS_MULTICAST
ERL_TIME_CORRECTION
AC_CHECK_PROG(M4, m4, m4)
dnl check to auto-enable hipe here...
if test X${enable_hipe} != Xno; then
if test -z "$M4"; then
enable_hipe=no
AC_MSG_NOTICE([HiPE disabled as no valid m4 is found in PATH])
else
case "$ARCH-$OPSYS" in
x86-linux|amd64-linux|ppc-linux|ppc-darwin|arm-linux|amd64-freebsd|x86-freebsd|x86-sol2|amd64-sol2|ultrasparc-linux)
enable_hipe=yes
;;
esac
fi
fi
case $ARCH-$OPSYS in
amd64-darwin*|x86-darwin*)
AC_MSG_CHECKING([For modern (leopard) style mcontext_t])
AC_TRY_COMPILE([
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <mach/mach.h>
#include <pthread.h>
#include <machine/signal.h>
#include <ucontext.h>
],[
#if defined(__APPLE__) && defined(__MACH__) && !defined(__DARWIN__)
#define __DARWIN__ 1
#endif
#ifndef __DARWIN__
#error inpossible
#else
mcontext_t mc = NULL;
int x = mc->__fs.__fpu_mxcsr;
#endif
],darwin_mcontext_leopard=yes,
darwin_mcontext_leopard=no)
if test X"$darwin_mcontext_leopard" = X"yes"; then
AC_DEFINE(DARWIN_MODERN_MCONTEXT,[],[Modern style mcontext_t in MacOSX])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
;;
*)
darwin_mcontext_leopard=no
;;
esac
if test X${enable_fp_exceptions} = Xauto ; then
if test X${enable_hipe} = Xyes; then
enable_fp_exceptions=yes
else
enable_fp_exceptions=no
AC_MSG_NOTICE([Floating point exceptions disabled by default in this configuration])
fi
fi
if test X${enable_fp_exceptions} != Xyes ; then
AC_DEFINE(NO_FPE_SIGNALS,[],[Define if floating points exceptions are non-existing/not reliable])
FPE=unreliable
else
AC_MSG_CHECKING([for unreliable floating point execptions])
AC_TRY_RUN([
/* fpe-test.c */
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
volatile int erl_fp_exception;
/*
* We expect a single SIGFPE in this test program.
* Getting many more indicates an inadequate SIGFPE handler,
* e.g. using the generic handler on x86.
*/
static void new_fp_exception(void)
{
if (++erl_fp_exception > 50) {
fprintf(stderr, "SIGFPE loop detected, bailing out\n");
exit(1);
}
}
/* Is there no standard identifier for Darwin/MacOSX ? */
#if defined(__APPLE__) && defined(__MACH__) && !defined(__DARWIN__)
#define __DARWIN__ 1
#endif
/*
* Implement unmask_fpe() and check_fpe() based on CPU/OS combination
*/
#if (defined(__i386__) || defined(__x86_64__)) && defined(__GNUC__) && !defined(__CYGWIN__)
static void unmask_x87(void)
{
unsigned short cw;
__asm__ __volatile__("fstcw %0" : "=m"(cw));
cw &= ~(0x01|0x04|0x08); /* unmask IM, ZM, OM */
__asm__ __volatile__("fldcw %0" : : "m"(cw));
}
static void unmask_sse2(void)
{
unsigned int mxcsr;
__asm__ __volatile__("stmxcsr %0" : "=m"(mxcsr));
mxcsr &= ~(0x003F|0x0680); /* clear exn flags, unmask OM, ZM, IM (not PM, UM, DM) */
__asm__ __volatile__("ldmxcsr %0" : : "m"(mxcsr));
}
#if defined(__x86_64__)
static inline int cpu_has_sse2(void) { return 1; }
#else /* !__x86_64__ */
/*
* Check if an x86-32 processor has SSE2.
*/
static unsigned int xor_eflags(unsigned int mask)
{
unsigned int eax, edx;
eax = mask; /* eax = mask */
__asm__("pushfl\n\t"
"popl %0\n\t" /* edx = original EFLAGS */
"xorl %0, %1\n\t" /* eax = mask ^ EFLAGS */
"pushl %1\n\t"
"popfl\n\t" /* new EFLAGS = mask ^ original EFLAGS */
"pushfl\n\t"
"popl %1\n\t" /* eax = new EFLAGS */
"xorl %0, %1\n\t" /* eax = new EFLAGS ^ old EFLAGS */
"pushl %0\n\t"
"popfl" /* restore original EFLAGS */
: "=d"(edx), "=a"(eax)
: "1"(eax));
return eax;
}
static __inline__ unsigned int cpuid_eax(unsigned int op)
{
unsigned int eax, save_ebx;
/* In PIC mode i386 reserves EBX. So we must save
and restore it ourselves to not upset gcc. */
__asm__(
"movl %%ebx, %1\n\t"
"cpuid\n\t"
"movl %1, %%ebx"
: "=a"(eax), "=m"(save_ebx)
: "0"(op)
: "cx", "dx");
return eax;
}
static __inline__ unsigned int cpuid_edx(unsigned int op)
{
unsigned int eax, edx, save_ebx;
/* In PIC mode i386 reserves EBX. So we must save
and restore it ourselves to not upset gcc. */
__asm__(
"movl %%ebx, %2\n\t"
"cpuid\n\t"
"movl %2, %%ebx"
: "=a"(eax), "=d"(edx), "=m"(save_ebx)
: "0"(op)
: "cx");
return edx;
}
/* The AC bit, bit #18, is a new bit introduced in the EFLAGS
* register on the Intel486 processor to generate alignment
* faults. This bit cannot be set on the Intel386 processor.
*/
static __inline__ int is_386(void)
{
return ((xor_eflags(1<<18) >> 18) & 1) == 0;
}
/* Newer x86 processors have a CPUID instruction, as indicated by
* the ID bit (#21) in EFLAGS being modifiable.
*/
static __inline__ int has_CPUID(void)
{
return (xor_eflags(1<<21) >> 21) & 1;
}
static int cpu_has_sse2(void)
{
unsigned int maxlev, features;
static int has_sse2 = -1;
if (has_sse2 >= 0)
return has_sse2;
has_sse2 = 0;
if (is_386())
return 0;
if (!has_CPUID())
return 0;
maxlev = cpuid_eax(0);
/* Intel A-step Pentium had a preliminary version of CPUID.
It also didn't have SSE2. */
if ((maxlev & 0xFFFFFF00) == 0x0500)
return 0;
/* If max level is zero then CPUID cannot report any features. */
if (maxlev == 0)
return 0;
features = cpuid_edx(1);
has_sse2 = (features & (1 << 26)) != 0;
return has_sse2;
}
#endif /* !__x86_64__ */
static void unmask_fpe(void)
{
unmask_x87();
if (cpu_has_sse2())
unmask_sse2();
}
static __inline__ int check_fpe(double f)
{
__asm__ __volatile__("fwait" : "=m"(erl_fp_exception) : "m"(f));
if (!erl_fp_exception)
return 0;
__asm__ __volatile__("fninit");
unmask_fpe();
return 1;
}
#elif defined(__sparc__) && defined(__linux__)
#if defined(__arch64__)
#define LDX "ldx"
#define STX "stx"
#else
#define LDX "ld"
#define STX "st"
#endif
static void unmask_fpe(void)
{
unsigned long fsr;
__asm__(STX " %%fsr, %0" : "=m"(fsr));
fsr &= ~(0x1FUL << 23); /* clear FSR[TEM] field */
fsr |= (0x1AUL << 23); /* enable NV, OF, DZ exceptions */
__asm__ __volatile__(LDX " %0, %%fsr" : : "m"(fsr));
}
static __inline__ int check_fpe(double f)
{
__asm__ __volatile__("" : "=m"(erl_fp_exception) : "em"(f));
return erl_fp_exception;
}
#elif (defined(__powerpc__) && defined(__linux__)) || (defined(__ppc__) && defined(__DARWIN__))
#if defined(__linux__)
#include <sys/prctl.h>
static void set_fpexc_precise(void)
{
if (prctl(PR_SET_FPEXC, PR_FP_EXC_PRECISE) < 0) {
perror("PR_SET_FPEXC");
exit(1);
}
}
#elif defined(__DARWIN__)
#include <mach/mach.h>
#include <pthread.h>
/*
* FE0 FE1 MSR bits
* 0 0 floating-point exceptions disabled
* 0 1 floating-point imprecise nonrecoverable
* 1 0 floating-point imprecise recoverable
* 1 1 floating-point precise mode
*
* Apparently:
* - Darwin 5.5 (MacOS X <= 10.1) starts with FE0 == FE1 == 0,
* and resets FE0 and FE1 to 0 after each SIGFPE.
* - Darwin 6.0 (MacOS X 10.2) starts with FE0 == FE1 == 1,
* and does not reset FE0 or FE1 after a SIGFPE.
*/
#define FE0_MASK (1<<11)
#define FE1_MASK (1<<8)
/* a thread cannot get or set its own MSR bits */
static void *fpu_fpe_enable(void *arg)
{
thread_t t = *(thread_t*)arg;
struct ppc_thread_state state;
unsigned int state_size = PPC_THREAD_STATE_COUNT;
if (thread_get_state(t, PPC_THREAD_STATE, (natural_t*)&state, &state_size) != KERN_SUCCESS) {
perror("thread_get_state");
exit(1);
}
if ((state.srr1 & (FE1_MASK|FE0_MASK)) != (FE1_MASK|FE0_MASK)) {
#if 0
/* This would also have to be performed in the SIGFPE handler
to work around the MSR reset older Darwin releases do. */
state.srr1 |= (FE1_MASK|FE0_MASK);
thread_set_state(t, PPC_THREAD_STATE, (natural_t*)&state, state_size);
#else
fprintf(stderr, "srr1 == 0x%08x, your Darwin is too old\n", state.srr1);
exit(1);
#endif
}
return NULL; /* Ok, we appear to be on Darwin 6.0 or later */
}
static void set_fpexc_precise(void)
{
thread_t self = mach_thread_self();
pthread_t enabler;
if (pthread_create(&enabler, NULL, fpu_fpe_enable, &self)) {
perror("pthread_create");
} else if (pthread_join(enabler, NULL)) {
perror("pthread_join");
}
}
#endif
static void set_fpscr(unsigned int fpscr)
{
union {
double d;
unsigned int fpscr[2];
} u;
u.fpscr[0] = 0xFFF80000;
u.fpscr[1] = fpscr;
__asm__ __volatile__("mtfsf 255,%0" : : "f"(u.d));
}
static void unmask_fpe(void)
{
set_fpexc_precise();
set_fpscr(0x80|0x40|0x10); /* VE, OE, ZE; not UE or XE */
}
static __inline__ int check_fpe(double f)
{
__asm__ __volatile__("" : "=m"(erl_fp_exception) : "fm"(f));
return erl_fp_exception;
}
#else
#include <ieeefp.h>
#define unmask_fpe() fpsetmask(FP_X_INV | FP_X_OFL | FP_X_DZ)
static __inline__ int check_fpe(double f)
{
__asm__ __volatile__("" : "=m"(erl_fp_exception) : "g"(f));
return erl_fp_exception;
}
#endif
/*
* Implement SIGFPE handler based on CPU/OS combination
*/
#if (defined(__linux__) && (defined(__i386__) || defined(__x86_64__) || defined(__sparc__) || defined(__powerpc__))) || (defined(__DARWIN__) && (defined(__i386__) || defined(__x86_64__) || defined(__ppc__))) || (defined(__FreeBSD__) && (defined(__i386__) || defined(__x86_64__))) || (defined(__OpenBSD__) && defined(__x86_64__)) || (defined(__sun__) && defined(__x86_64__))
#if defined(__linux__) && defined(__i386__)
#if !defined(X86_FXSR_MAGIC)
#define X86_FXSR_MAGIC 0x0000
#endif
#elif defined(__FreeBSD__) && defined(__i386__)
#include <sys/types.h>
#include <machine/npx.h>
#elif defined(__FreeBSD__) && defined(__x86_64__)
#include <sys/types.h>
#include <machine/fpu.h>
#elif defined(__DARWIN__)
#include <machine/signal.h>
#elif defined(__OpenBSD__) && defined(__x86_64__)
#include <sys/types.h>
#include <machine/fpu.h>
#endif
#if !(defined(__OpenBSD__) && defined(__x86_64__))
#include <ucontext.h>
#endif
#include <string.h>
static void fpe_sig_action(int sig, siginfo_t *si, void *puc)
{
ucontext_t *uc = puc;
#if defined(__linux__)
#if defined(__x86_64__)
mcontext_t *mc = &uc->uc_mcontext;
fpregset_t fpstate = mc->fpregs;
fpstate->mxcsr = 0x1F80;
fpstate->swd &= ~0xFF;
#elif defined(__i386__)
mcontext_t *mc = &uc->uc_mcontext;
fpregset_t fpstate = mc->fpregs;
if ((fpstate->status >> 16) == X86_FXSR_MAGIC)
((struct _fpstate*)fpstate)->mxcsr = 0x1F80;
fpstate->sw &= ~0xFF;
#elif defined(__sparc__) && defined(__arch64__)
/* on SPARC the 3rd parameter points to a sigcontext not a ucontext */
struct sigcontext *sc = (struct sigcontext*)puc;
sc->sigc_regs.tpc = sc->sigc_regs.tnpc;
sc->sigc_regs.tnpc += 4;
#elif defined(__sparc__)
/* on SPARC the 3rd parameter points to a sigcontext not a ucontext */
struct sigcontext *sc = (struct sigcontext*)puc;
sc->si_regs.pc = sc->si_regs.npc;
sc->si_regs.npc = (unsigned long)sc->si_regs.npc + 4;
#elif defined(__powerpc__)
#if defined(__powerpc64__)
mcontext_t *mc = &uc->uc_mcontext;
unsigned long *regs = &mc->gp_regs[0];
#else
mcontext_t *mc = uc->uc_mcontext.uc_regs;
unsigned long *regs = &mc->gregs[0];
#endif
regs[PT_NIP] += 4;
regs[PT_FPSCR] = 0x80|0x40|0x10; /* VE, OE, ZE; not UE or XE */
#endif
#elif defined(__DARWIN__)
#if defined(DARWIN_MODERN_MCONTEXT)
#if defined(__x86_64__)
mcontext_t mc = uc->uc_mcontext;
struct __darwin_x86_float_state64 *fpstate = &mc->__fs;
fpstate->__fpu_mxcsr = 0x1F80;
*(unsigned short *)&fpstate->__fpu_fsw &= ~0xFF;
#elif defined(__i386__)
mcontext_t mc = uc->uc_mcontext;
struct __darwin_i386_float_state *fpstate = &mc->__fs;
fpstate->__fpu_mxcsr = 0x1F80;
*(unsigned short *)&fpstate->__fpu_fsw &= ~0xFF;
#elif defined(__ppc__)
mcontext_t mc = uc->uc_mcontext;
mc->ss.srr0 += 4;
mc->fs.fpscr = 0x80|0x40|0x10;
#endif
#else
#if defined(__x86_64__)
mcontext_t mc = uc->uc_mcontext;
struct x86_float_state64_t *fpstate = &mc->fs;
fpstate->fpu_mxcsr = 0x1F80;
*(unsigned short *)&fpstate->fpu_fsw &= ~0xFF;
#elif defined(__i386__)
mcontext_t mc = uc->uc_mcontext;
x86_float_state32_t *fpstate = &mc->fs;
fpstate->fpu_mxcsr = 0x1F80;
*(unsigned short *)&fpstate->fpu_fsw &= ~0xFF;
#elif defined(__ppc__)
mcontext_t mc = uc->uc_mcontext;
mc->ss.srr0 += 4;
mc->fs.fpscr = 0x80|0x40|0x10;
#endif
#endif
#elif defined(__FreeBSD__) && defined(__x86_64__)
mcontext_t *mc = &uc->uc_mcontext;
struct savefpu *savefpu = (struct savefpu*)&mc->mc_fpstate;
struct envxmm *envxmm = &savefpu->sv_env;
envxmm->en_mxcsr = 0x1F80;
envxmm->en_sw &= ~0xFF;
#elif defined(__FreeBSD__) && defined(__i386__)
mcontext_t *mc = &uc->uc_mcontext;
union savefpu *savefpu = (union savefpu*)&mc->mc_fpstate;
if (mc->mc_fpformat == _MC_FPFMT_XMM) {
struct envxmm *envxmm = &savefpu->sv_xmm.sv_env;
envxmm->en_mxcsr = 0x1F80;
envxmm->en_sw &= ~0xFF;
} else {
struct env87 *env87 = &savefpu->sv_87.sv_env;
env87->en_sw &= ~0xFF;
}
#elif defined(__OpenBSD__) && defined(__x86_64__)
struct fxsave64 *fxsave = uc->sc_fpstate;
fxsave->fx_mxcsr = 0x1F80;
fxsave->fx_fsw &= ~0xFF;
#elif defined(__sun__) && defined(__x86_64__)
mcontext_t *mc = &uc->uc_mcontext;
struct fpchip_state *fpstate = &mc->fpregs.fp_reg_set.fpchip_state;
fpstate->mxcsr = 0x1F80;
fpstate->sw &= ~0xFF;
#endif
new_fp_exception();
}
static void catch_sigfpe(void)
{
struct sigaction act;
memset(&act, 0, sizeof act);
act.sa_sigaction = fpe_sig_action;
act.sa_flags = SA_SIGINFO;
sigaction(SIGFPE, &act, NULL);
}
#else
static void fpe_sig_handler(int sig)
{
new_fp_exception();
}
static void catch_sigfpe(void)
{
signal(SIGFPE, fpe_sig_handler);
}
#endif
/*
* Generic test code
*/
static void do_init(void)
{
catch_sigfpe();
unmask_fpe();
}
double a = 3.23e133;
double b = 3.57e257;
double res;
void do_fmul(void)
{
res = a * b;
}
int do_check(void)
{
if (check_fpe(res)) {
fprintf(stderr, "res = %g, FPE worked\n", res);
return 0;
} else {
fprintf(stderr, "res = %g, FPE failed\n", res);
return 1;
}
}
int main(int argc, const char **argv)
{
if (argc == 3) {
a = atof(argv[1]);
b = atof(argv[2]);
}
do_init();
do_fmul();
return do_check();
}
],
erl_ok=reliable,
erl_ok=unreliable,
if test "x$erl_xcomp_reliable_fpe" = "xyes"; then
erl_ok=reliable
else
erl_ok=unreliable
fi)
if test $erl_ok = unreliable; then
AC_DEFINE(NO_FPE_SIGNALS,[],
[Define if floating points exceptions are non-existing/not reliable])
AC_MSG_RESULT([unreliable; testing in software instead])
FPE=unreliable
else
AC_MSG_RESULT(reliable)
FPE=reliable
fi
fi
dnl
dnl Some operating systems allow you to redefine FD_SETSIZE to be able
dnl to select on more than the default number of file descriptors.
dnl We first discovered this in BSD/OS where the default is ridiculously
dnl low (256). But since we use a lot of file descriptors we found the
dnl need to go over the limit in other os's as well. Since FD_SETSIZE
dnl must be defined before pulling in sys/types.h the actual number
dnl of file descriptors is set in acconfig.h and will thus be in config.h
dnl which *always* should be included first.
dnl
AC_MSG_CHECKING([whether to redefine FD_SETSIZE])
case $host_os in
bsdi*)
AC_DEFINE(REDEFINE_FD_SETSIZE,[],[Define if you wish to redefine FD_SETSIZE to be able to select on more fd])
AC_MSG_RESULT(yes)
;;
*)
AC_MSG_RESULT(no)
;;
esac
dnl ----------------------------------------------------------------------
dnl Tests related to configurable options given on command line
dnl (using the --disable, --enable and --with switches).
dnl ----------------------------------------------------------------------
#
# Check if we should compile TSP app
#
TSP_APP=
if test X${enable_tsp} = Xyes; then
TSP_APP=tsp
fi
AC_SUBST(TSP_APP)
#
# Check if we should build hybrid emulator
#
AC_MSG_CHECKING([whether a hybrid heap emulator should be built])
case $enable_hybrid_heap-$host_os in
yes-*)
AC_MSG_RESULT([yes; enabled by user])
ERTS_BUILD_HYBRID_EMU=yes;;
no-*)
AC_MSG_RESULT([no; disabled by user])
ERTS_BUILD_HYBRID_EMU=no;;
*-win32|*-vxworks|*-ose) # vxworks and ose have their own "configure scripts"...
AC_MSG_RESULT([no; default on this platform])
ERTS_BUILD_HYBRID_EMU=no;;
*)
AC_MSG_RESULT([yes; default on this platform])
ERTS_BUILD_HYBRID_EMU=yes;;
esac
if test $ERTS_BUILD_HYBRID_EMU = yes; then
AC_DEFINE(ERTS_HAVE_HYBRID_EMU, 1, [Define if the hybrid emulator is built])
fi
AC_SUBST(ERTS_BUILD_HYBRID_EMU)
#
# Check if we should enable HiPE.
#
HIPE_ENABLED=
HIPE_HELPERS=
dnl if not disabled, autoenable HiPE on known supported platforms
dnl done up where floating point is checked, need to descide there already...
if test X${enable_hipe} = Xyes; then
if test X$ac_cv_sizeof_void_p != X4 -a X$ARCH != Xamd64 -a X$ARCH != Xppc64; then
AC_MSG_WARN([HiPE is not supported in 64-bit builds])
elif test X$FPE != Xreliable -a X$ARCH != Xarm; then
AC_MSG_WARN([HiPE is not supported on $ARCH without reliable floating-point exceptions])
else
HIPE_ENABLED=yes
AC_DEFINE(HIPE,[1],[Define to enable HiPE])
HIPE_HELPERS="xmerl syntax_tools edoc"
ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS hipe"
fi
fi
AC_SUBST(HIPE_HELPERS)
AC_SUBST(HIPE_ENABLED)
#
# Check if Erlang libraries should be compiled to native code.
#
NATIVE_LIBS_ENABLED=
if test X${enable_native_libs} = Xyes -a X${HIPE_ENABLED} = Xyes; then
NATIVE_LIBS_ENABLED=yes
fi
AC_SUBST(NATIVE_LIBS_ENABLED)
#
# Check if HiPE should use a standard installation of perfctr.
#
AC_SUBST(USE_PERFCTR)
if test "x$HIPE_ENABLED" = "xyes" ; then
if test "x$with_perfctr" = "x" ; then
AC_CHECK_LIB(perfctr, vperfctr_info, [USE_PERFCTR=1
AC_DEFINE(USE_PERFCTR,[1],[Define to enable hrvtime() on Linux systems with perfctr extension])])
elif test "x$with_perfctr" != "xno" ; then
USE_PERFCTR=1
fi
fi
#
# Check if we should use elib_malloc.
#
if test X${enable_elib_malloc} = Xyes; then
AC_DEFINE(ENABLE_ELIB_MALLOC,[],[Define to enable use of elib_malloc (a malloc() replacement)])
AC_DEFINE(ELIB_HEAP_SBRK,[],[Elib sbrk])
AC_DEFINE(ELIB_ALLOC_IS_CLIB,[],[Use elib malloc as clib])
AC_DEFINE(ELIB_SORTED_BLOCKS,[],[Define to enable the use of sorted blocks when using elib_malloc])
fi
#
# Check for working poll().
#
AC_MSG_CHECKING([for working poll()])
if test "x$ac_cv_header_poll_h" != "xyes" -o "x$ac_cv_func_poll" != "xyes"; then
poll_works=no
else
AC_TRY_RUN([
#include <poll.h>
main()
{
#ifdef _POLL_EMUL_H_
exit(1); /* Implemented using select() -- fail */
#else
struct pollfd fds[1];
int fd;
fd = open("/dev/null", 1);
fds[0].fd = fd;
fds[0].events = POLLIN;
fds[0].revents = 0;
if (poll(fds, 1, 0) < 0 || (fds[0].revents & POLLNVAL) != 0) {
exit(1); /* Does not work for devices -- fail */
}
exit(0);
#endif
}
],
poll_works=yes,
poll_works=no,
poll_works=$erl_xcomp_poll)
if test "X$poll_works" != "X"; then
guessed_poll_works=no
else
guessed_poll_works=yes
case $host_os in
darwin*) poll_works=no;;
*) poll_works=yes;;
esac
fi
fi
case $poll_works in
yes)
AC_DEFINE(ERTS_USE_POLL, 1, [Define if poll() should be used instead of select()])
AC_MSG_RESULT(yes)
;;
*)
#
# The USE_SELECT define is used by the ssl application (should not
# be used by erts).
#
poll_works=no
AC_DEFINE(USE_SELECT, 1, [Define if select() should be used instead of poll()])
AC_MSG_RESULT([no; non-existing, broken, or based on select()])
;;
esac
if test $guessed_poll_works = yes; then
AC_MSG_WARN([result $poll_works guessed based on OS ($host_os) because of cross compilation])
fi
#
# If kqueue() found, check that it can be selected or polled on...
#
if test $have_kernel_poll = kqueue; then
if test $poll_works = true; then
kqueue_with=poll
else
kqueue_with=select
fi
AC_MSG_CHECKING([whether kqueue() fd can be ${kqueue_with}()ed on])
AC_TRY_RUN([
#include <stdlib.h>
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
#ifdef ERTS_USE_POLL
#include <poll.h>
#else
#include <unistd.h>
#endif
int main(void) {
int kq = kqueue();
if (kq < 0) return 2;
{
#ifdef ERTS_USE_POLL
struct pollfd pfds = {kq, POLLIN, 0};
if (poll(&pfds, 1, 0) < 0) return 1;
#else
struct timeval tv = {0, 0};
fd_set set; FD_ZERO(&set); FD_SET(kq, &set);
if (select(kq+1, &set, NULL, NULL, &tv) < 0) return 1;
#endif
}
return 0;
}
],
ok_kqueue=true,
ok_kqueue=false,
if test "x$erl_xcomp_kqueue" = "xyes"; then
ok_kqueue=true
else
ok_kqueue=false
fi)
if test $ok_kqueue = true; then
AC_MSG_RESULT(yes);
else
AC_MSG_RESULT(no);
have_kernel_poll=no
fi
fi
#
# If epoll() found, check that it is level triggered.
#
if test $have_kernel_poll = epoll; then
AC_MSG_CHECKING([whether epoll is level triggered])
AC_TRY_COMPILE([#include <sys/epoll.h>],[
#ifdef EPOLLET
/* Edge triggered option exist, assume level triggered
is default */
;
#else
/* No edge triggered option exist; assume edge
triggered only */
#error No EPOLLET
#endif
],
level_triggered_epoll=yes,
[level_triggered_epoll=no
have_kernel_poll=no])
AC_MSG_RESULT([$level_triggered_epoll])
fi
#
# Check if we should enable kernel poll support
#
AC_MSG_CHECKING(whether kernel poll support should be enabled)
ERTS_ENABLE_KERNEL_POLL=no
case $enable_kernel_poll-$have_kernel_poll in
no-*)
AC_MSG_RESULT(no; disabled by user);;
yes-no)
AC_MSG_ERROR(no; kernel poll support requested but not found);;
*-no)
AC_MSG_RESULT(no);;
*)
case $have_kernel_poll in
epoll)
AC_DEFINE(HAVE_SYS_EPOLL_H, 1, [Define if you have the <sys/epoll.h> header file.]);;
/dev/poll)
AC_DEFINE(HAVE_SYS_DEVPOLL_H, 1, [Define if you have <sys/devpoll.h> header file.]);;
kqueue)
AC_DEFINE(HAVE_SYS_EVENT_H, 1, [Define if you have <sys/event.h> header file.]);;
*)
AC_MSG_ERROR(configure.in need to be updated);;
esac
ERTS_ENABLE_KERNEL_POLL=yes
AC_DEFINE(ERTS_ENABLE_KERNEL_POLL, 1, [Define if you have kernel poll and want to use it])
AC_MSG_RESULT([yes; $have_kernel_poll]);;
esac
AC_SUBST(ERTS_ENABLE_KERNEL_POLL)
AC_MSG_CHECKING([whether putenv() stores a copy of the key-value pair])
AC_TRY_RUN([
#include <stdlib.h>
int main(void) {
int i;
char *env;
char buf[10];
for (i = 0; i < 7; i++)
buf[i] = 'X';
buf[i] = '\0';
buf[3] = '=';
if (putenv(buf) != 0)
return 1;
for (i = 4; i < 7; i++)
buf[i] = 'Y';
env = getenv("XXX");
if (!env)
return 2;
for (i = 0; i < 3; i++)
if (env[i] != 'X')
return 3;
for (i = 0; i < 3; i++)
buf[i] = 'Y';
env = getenv("XXX");
if (!env)
return 4;
for (i = 0; i < 3; i++)
if (env[i] != 'X')
return 5;
return 0;
}
],
copying_putenv=yes,
copying_putenv=no,
if test "x$erl_xcomp_putenv_copy" != "x"; then
copying_putenv=$erl_xcomp_putenv_copy
else
copying_putenv=no
fi)
if test $copying_putenv = yes; then
AC_DEFINE(HAVE_COPYING_PUTENV,[1],[Define if you have a putenv() that stores a copy of the key-value pair])
fi
AC_MSG_RESULT($copying_putenv)
dnl ----------------------------------------------------------------------
dnl Stuff that should be moved into their respective application
dnl ----------------------------------------------------------------------
dnl crypto
#--------------------------------------------------------------------
# Dynamic Erlang Drivers
#
# Linking to produce dynamic Erlang drivers to be loaded by Erlang's
# Dynamic Driver Loader and Linker (DDLL). Below the prefix DED is an
# abbreviation for `Dynamic Erlang Driver'.
#
# For DED we need something quite sloppy, which allows undefined references
# (notably driver functions) in the resulting shared library.
# Example of Makefile rule (and settings of macros):
#
# LIBS = @LIBS@
# LD = @DED_LD@
# LDFLAGS = @DED_LDFLAGS@
# soname = @ldsoname@
#
# my_drv.so: my_drv.o my_utils.o
# $(LD) $(LDFLAGS) $(soname) $@ -o $@ $^ -lc $(LIBS)
#
#--------------------------------------------------------------------
DED_INCLUDE="-I${ERL_TOP}/erts/emulator/beam -I${ERL_TOP}/erts/include -I${ERL_TOP}/erts/include/$host"
DED_CFLAGS="$DED_INCLUDE $CFLAGS $CPPFLAGS $EMU_THR_DEFS"
if test "x$GCC" = xyes; then
DED_CFLAGS="$DED_CFLAGS -fPIC"
fi
STATIC_CFLAGS=""
# If DED_LD is set in environment, we expect all DED variables to be specified
# (cross compiling)
if test "x$DED_LD" = "x"; then
if test "x$LD" = "x"; then
DED_LD=ld
else
DED_LD=$LD
fi
DED_LD_FLAG_RUNTIME_LIBRARY_PATH="-R"
case $host_os in
win32)
DED_LD=ld.sh
DED_LDFLAGS="-dll"
DED_LD_FLAG_RUNTIME_LIBRARY_PATH=
;;
solaris2*|sysv4*)
DED_LDFLAGS="-G"
if test X${enable_m64_build} = Xyes; then
DED_LDFLAGS="-64 $DED_LDFLAGS"
fi
;;
aix4*)
DED_LDFLAGS="-G -bnoentry -bexpall"
;;
freebsd2*)
# Non-ELF GNU linker
DED_LDFLAGS="-Bshareable"
;;
darwin*)
# Mach-O linker: a shared lib and a loadable
# object file is not the same thing.
DED_LDFLAGS="-bundle -flat_namespace -undefined suppress"
case $ARCH in
amd64)
DED_LDFLAGS="-m64 $DED_LDFLAGS"
;;
*)
if test X${enable_darwin_universal} != Xyes; then
DED_LDFLAGS="-m32 $DED_LDFLAGS"
fi
;;
esac
if test X${enable_darwin_universal} = Xyes; then
DED_LDFLAGS="-arch ppc -arch i386 $DED_LDFLAGS"
fi
DED_CFLAGS="$DED_CFLAGS -fno-common"
DED_LD="$CC"
DED_LD_FLAG_RUNTIME_LIBRARY_PATH=
STATIC_CFLAGS="-mdynamic-no-pic"
;;
linux*)
DED_LD="$CC"
DED_LDFLAGS="-shared -Wl,-Bsymbolic"
DED_LD_FLAG_RUNTIME_LIBRARY_PATH=
if test X${enable_m64_build} = Xyes; then
DED_LDFLAGS="-m64 $DED_LDFLAGS"
fi
;;
freebsd*)
DED_LD="$CC"
DED_LDFLAGS="-shared"
if test X${enable_m64_build} = Xyes; then
DED_LDFLAGS="-m64 $DED_LDFLAGS"
fi
;;
osf*)
# NOTE! Whitespace after -rpath is important.
DED_LD_FLAG_RUNTIME_LIBRARY_PATH="-rpath "
DED_LDFLAGS="-shared -expect_unresolved '*'"
;;
*)
# assume GNU linker and ELF
DED_LDFLAGS="-shared"
# GNU linker has no option for 64bit build, should not propagate -m64
;;
esac
fi
AC_MSG_CHECKING(for compiler flags for loadable drivers)
AC_MSG_RESULT([$DED_CFLAGS])
AC_MSG_CHECKING(for linker for loadable drivers)
AC_MSG_RESULT([$DED_LD])
AC_MSG_CHECKING(for linker flags for loadable drivers)
AC_MSG_RESULT([$DED_LDFLAGS])
AC_MSG_CHECKING(for 'runtime library path' linker flag)
if test "x$DED_LD_FLAG_RUNTIME_LIBRARY_PATH" != "x"; then
AC_MSG_RESULT([$DED_LD_FLAG_RUNTIME_LIBRARY_PATH])
else
AC_MSG_RESULT([not found])
fi
AC_SUBST(DED_CFLAGS)
AC_SUBST(DED_LD)
AC_SUBST(DED_LDFLAGS)
AC_SUBST(DED_LD_FLAG_RUNTIME_LIBRARY_PATH)
AC_SUBST(STATIC_CFLAGS)
dnl
dnl We should look for a compiler that handles jump tables, for beam_emu
dnl to be optimized
dnl
LM_FIND_EMU_CC
dnl
dnl SSL, SSH and CRYPTO need the OpenSSL libraries
dnl
dnl Check flags --with-ssl, --without-ssl --with-ssl=PATH.
dnl If no option is given or --with-ssl is set without a path then we
dnl search for OpenSSL libraries and header files in the standard locations.
dnl If set to --without-ssl we disable the use of SSL, SSH and CRYPTO.
dnl If set to --with-ssl=PATH we use that path as the prefix, i.e. we
dnl use "PATH/include" and "PATH/lib".
AC_SUBST(SSL_INCLUDE)
AC_SUBST(SSL_ROOT)
AC_SUBST(SSL_LIBDIR)
AC_SUBST(SSL_DYNAMIC_ONLY)
AC_SUBST(SSL_LINK_WITH_KERBEROS)
AC_SUBST(STATIC_KERBEROS_LIBS)
AC_SUBST(SSL_LINK_WITH_ZLIB)
AC_SUBST(STATIC_ZLIB_LIBS)
AC_SUBST(OPENSSL_CMD)
AC_ARG_WITH(ssl-zlib,
[ --with-ssl-zlib=PATH specify location of ZLib to be used by OpenSSL
--with-ssl-zlib link SSL with Zlib (default if found)
--without-ssl-zlib don't link SSL with ZLib])
if test "x$with_ssl_zlib" = "xno"; then
SSL_LINK_WITH_ZLIB=no
STATIC_ZLIB_LIBS=
elif test "x$with_ssl_zlib" = "xyes" -o "x$with_ssl_zlib" = "x" ;then
if test "x$MIXED_CYGWIN" = "xyes"; then
SSL_LINK_WITH_ZLIB=no
STATIC_ZLIB_LIBS=
else
SSL_LINK_WITH_ZLIB=no
STATIC_ZLIB_LIBS=
AC_MSG_CHECKING(for static ZLib to be used by SSL in standard locations)
for dir in /usr/local /usr/sfw /usr /usr/pkg \
/usr/local/openssl /usr/lib/openssl /usr/openssl \
/usr/local/ssl /usr/lib/ssl /usr/ssl
do
if test "x$ac_cv_sizeof_void_p" = "x8"; then
if test -f "$dir/lib64/libz.a"; then
SSL_LINK_WITH_ZLIB=yes
STATIC_ZLIB_LIBS="$dir/lib64/libz.a"
break
elif test -f "$dir/lib/64/libz.a"; then
SSL_LINK_WITH_ZLIB=yes
STATIC_ZLIB_LIBS="$dir/lib/64/libz.a"
break
fi
fi
if test -f "$dir/lib/libz.a"; then
SSL_LINK_WITH_ZLIB=yes
STATIC_ZLIB_LIBS="$dir/lib/libz.a"
break
fi
done
if test "x$SSL_LINK_WITH_ZLIB" = "xno"; then
AC_MSG_RESULT([no])
else
AC_MSG_RESULT([$STATIC_ZLIB_LIBS])
fi
fi
else
SSL_LINK_WITH_ZLIB=no
STATIC_ZLIB_LIBS=
if test -f "$with_ssl_zlib/libz.a"; then
SSL_LINK_WITH_ZLIB=yes
STATIC_ZLIB_LIBS=$with_ssl_zlib/libz.a
elif test -f "$with_ssl_zlib/lib/libz.a"; then
SSL_LINK_WITH_ZLIB=yes
STATIC_ZLIB_LIBS=$with_ssl_zlib/lib/libz.a
fi
if test "x$ac_cv_sizeof_void_p" = "x8"; then
if test -f "$with_ssl_zlib/lib64/libz.a"; then
SSL_LINK_WITH_ZLIB=yes
STATIC_ZLIB_LIBS=$with_ssl_zlib/lib64/libz.a
elif test -f "$with_ssl_zlib/lib/64/libz.a"; then
SSL_LINK_WITH_ZLIB=yes
STATIC_ZLIB_LIBS=$with_ssl_zlib/lib/64/libz.a
fi
fi
if test "x$SSL_LINK_WITH_ZLIB" = "xno"; then
AC_MSG_ERROR(Invalid path to option --with-ssl-zlib=PATH)
fi
fi
AC_ARG_WITH(ssl,
[ --with-ssl=PATH specify location of OpenSSL include and lib
--with-ssl use SSL (default)
--without-ssl don't use SSL])
AC_ARG_ENABLE(dynamic-ssl-lib,
[ --enable-dynamic-ssl-lib enable using dynamic openssl libraries
--disable-dynamic-ssl-lib disable using dynamic openssl libraries],
[ case "$enableval" in
no) enable_dynamic_ssl=no ;;
*) enable_dynamic_ssl=yes ;;
esac ], enable_dynamic_ssl=yes)
#----------------------------------------------------------------------
# We actually might do the SSL tests twice due to late discovery of
# kerberos problems with static linking, in case we redo it all trying
# dynamic SSL libraries instead.
#----------------------------------------------------------------------
ssl_done=no
while test "x$ssl_done" != "xyes"; do
ssl_done=yes # Default only one run
# Remove all SKIP files from previous runs
for a in ssl crypto ssh; do
/bin/rm -f $ERL_TOP/lib/$a/SKIP
done
SSL_DYNAMIC_ONLY=$enable_dynamic_ssl
if test "x$with_ssl" = "xno"; then
SSL_APP=
CRYPTO_APP=
SSH_APP=
for a in ssl crypto ssh; do
echo "User gave --without-ssl option" > $ERL_TOP/lib/$a/SKIP
done
elif test "x$with_ssl" = "xyes" -o "x$with_ssl" = "x" ;then
# On windows, we could try to find the installation
# of Shining Light OpenSSL, which can be found by poking in
# the uninstall section in the registry, it's worth a try...
extra_dir=""
if test "x$MIXED_CYGWIN" = "xyes"; then
AC_CHECK_PROG(REGTOOL, regtool, regtool, false)
if test "$ac_cv_prog_REGTOOL" != false; then
wrp="/machine/software/microsoft/windows/currentversion/"
urp="uninstall/openssl_is1/inno setup: app path"
rp="$wrp$urp"
if regtool -q get "$rp" > /dev/null; then
ssl_install_dir=`regtool -q get "$rp"`
# Try hard to get rid of spaces...
if cygpath -d "$ssl_install_dir" > /dev/null 2>&1; then
ssl_install_dir=`cygpath -d "$ssl_install_dir"`
fi
extra_dir=`cygpath $ssl_install_dir`
fi
fi
fi
# We search for OpenSSL in the common OS standard locations.
SSL_APP=ssl
CRYPTO_APP=crypto
SSH_APP=ssh
AC_MSG_CHECKING(for OpenSSL >= 0.9.7 in standard locations)
for dir in $extra_dir /cygdrive/c/OpenSSL \
/usr/local /usr/sfw /opt/local /usr /usr/pkg \
/usr/local/openssl /usr/lib/openssl /usr/openssl \
/usr/local/ssl /usr/lib/ssl /usr/ssl
do
if test -f $dir/include/openssl/opensslv.h; then
is_real_ssl=yes
SSL_ROOT="$dir"
if test "x$MIXED_CYGWIN" = "xyes" ; then
if test -f "$dir/lib/VC/ssleay32.lib" -o \
-f "$dir/lib/VC/openssl.lib"; then
SSL_LIBDIR="$dir/lib/VC"
elif test -f "$dir/lib/ssleay32.lib" -o \
-f "$dir/lib/openssl.lib"; then
SSL_LIBDIR="$dir/lib"
else
is_real_ssl=no
fi
else
if test "x$ac_cv_sizeof_void_p" = "x8"; then
if test -f "$dir/lib64/libcrypto.a"; then
SSL_LIBDIR="$dir/lib64"
elif test -f "$dir/lib/64/libcrypto.a"; then
SSL_LIBDIR="$dir/lib/64"
elif test -f "$dir/lib64/libcrypto.so"; then
SSL_LIBDIR="$dir/lib64"
elif test -f "$dir/lib/64/libcrypto.so"; then
SSL_LIBDIR="$dir/lib/64"
else
SSL_LIBDIR="$dir/lib"
fi
else
SSL_LIBDIR="$dir/lib"
fi
fi
if test '!' -f $SSL_LIBDIR/libcrypto.a; then
SSL_DYNAMIC_ONLY=yes
fi
SSL_BINDIR="$dir/bin"
dnl Should one use EXEEXT or ac_exeext?
if test -f "$SSL_BINDIR/openssl$EXEEXT"; then
if "$SSL_BINDIR/openssl" version > /dev/null 2>&1; then
OPENSSL_CMD="$SSL_BINDIR/openssl"
else
is_real_ssl=no
fi
else
is_real_ssl=no
fi
if test "x$is_real_ssl" = "xyes" ; then
SSL_INCLUDE="-I$dir/include"
old_CPPFLAGS=$CPPFLAGS
CPPFLAGS=$SSL_INCLUDE
AC_EGREP_CPP(yes,[
#include <openssl/opensslv.h>
#if OPENSSL_VERSION_NUMBER >= 0x0090700fL
yes
#endif
],[
ssl_found=yes
],[
SSL_APP=
ssl_found=no
])
CPPFLAGS=$old_CPPFLAGS
if test "x$ssl_found" = "xyes"; then
if test "x$MIXED_CYGWIN" = "xyes" ; then
ssl_linkable=yes
else
saveCFLAGS="$CFLAGS"
saveLDFLAGS="$LDFLAGS"
saveLIBS="$LIBS"
CFLAGS="$CFLAGS $SSL_INCLUDE"
LDFLAGS="$LDFLAGS -L$SSL_LIBDIR"
LIBS="-lcrypto"
AC_TRY_LINK([
#include <stdio.h>
#include <openssl/hmac.h>],
[
HMAC_CTX hc;
HMAC_CTX_init(&hc);
],
[ssl_linkable=yes],
[ssl_linkable=no])
CFLAGS="$saveCFLAGS"
LDFLAGS="$saveLDFLAGS"
LIBS="$saveLIBS"
fi
fi
if test "x$ssl_found" = "xyes" -a "x$ssl_linkable" = "xyes" ; then
AC_MSG_RESULT([$dir])
break;
fi
fi
fi
done
if test "x$ssl_found" != "xyes" ; then
dnl
dnl If no SSL found above, check whether we are running on OpenBSD.
dnl
case $host_os in
openbsd*)
if test -f /usr/include/openssl/opensslv.h; then
# Trust OpenBSD to have everything the in the correct locations.
ssl_found=yes
ssl_linkable=yes
SSL_ROOT="/usr/sbin"
AC_MSG_RESULT([$SSL_ROOT])
SSL_LIB="/usr/lib"
SSL_BINDIR="/usr/sbin"
OPENSSL_CMD="$SSL_BINDIR/openssl"
dnl OpenBSD requires us to link with -L and -l
SSL_DYNAMIC_ONLY="yes"
fi
;;
esac
fi
dnl Now, certain linuxes have a 64bit libcrypto
dnl that cannot build shared libraries (i.e. not PIC)
dnl One could argue that this is wrong, but
dnl so it is - be adoptable
if test "x$ssl_found" = "xyes" -a "x$ssl_linkable" = "xyes" -a "x$SSL_DYNAMIC_ONLY" != "xyes" ; then
case $host_os in
linux*)
saveCFLAGS="$CFLAGS"
saveLDFLAGS="$LDFLAGS"
saveLIBS="$LIBS"
CFLAGS="$DED_CFLAGS $SSL_INCLUDE"
LDFLAGS="$DED_LDFLAGS"
LIBS="$SSL_LIBDIR/libcrypto.a $STATIC_ZLIB_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include <openssl/hmac.h>],
[
HMAC_CTX hc;
HMAC_CTX_init(&hc);
],
[ssl_dyn_linkable=yes],
[ssl_dyn_linkable=no])
CFLAGS="$saveCFLAGS"
LDFLAGS="$saveLDFLAGS"
LIBS="$saveLIBS"
if test "x$ssl_dyn_linkable" != "xyes"; then
SSL_DYNAMIC_ONLY=yes
AC_MSG_WARN([SSL will be linked against dynamic lib as static lib is not purely relocatable])
fi
;;
esac
fi
if test "x$ssl_found" != "xyes" -o "x$ssl_linkable" != "xyes"; then
if test "x$ssl_found" = "xyes"; then
AC_MSG_RESULT([found; but not usable])
else
AC_MSG_RESULT([no])
fi
SSL_APP=
CRYPTO_APP=
SSH_APP=
AC_MSG_WARN([No (usable) OpenSSL found, skipping ssl, ssh and crypto applications])
for a in ssl crypto ssh; do
echo "No usable OpenSSL found" > $ERL_TOP/lib/$a/SKIP
done
fi
else
# Option given with PATH to package
if test ! -d "$with_ssl" ; then
AC_MSG_ERROR(Invalid path to option --with-ssl=PATH)
fi
SSL_ROOT="$with_ssl"
if test "x$MIXED_CYGWIN" = "xyes" -a -d "$with_ssl/lib/VC"; then
SSL_LIBDIR="$with_ssl/lib/VC"
elif test "x$ac_cv_sizeof_void_p" = "x8"; then
if test -f "$with_ssl/lib64/libcrypto.a"; then
SSL_LIBDIR="$with_ssl/lib64"
elif test -f "$with_ssl/lib/64/libcrypto.a"; then
SSL_LIBDIR="$with_ssl/lib/64"
elif test -f "$with_ssl/lib64/libcrypto.so"; then
SSL_LIBDIR="$with_ssl/lib64"
elif test -f "$with_ssl/lib/64/libcrypto.so"; then
SSL_LIBDIR="$with_ssl/lib/64"
else
SSL_LIBDIR="$with_ssl/lib"
fi
else
SSL_LIBDIR="$with_ssl/lib"
fi
if test '!' -f $SSL_LIBDIR/libcrypto.a; then
SSL_DYNAMIC_ONLY=yes
fi
SSL_INCLUDE="-I$with_ssl/include"
OPENSSL_CMD="$with_ssl/bin/openssl"
SSL_APP=ssl
CRYPTO_APP=crypto
SSH_APP=ssh
fi
if test "x$SSL_APP" != "x" ; then
dnl We found openssl, now check if we use kerberos 5 support
AC_MSG_CHECKING(for OpenSSL kerberos 5 support)
old_CPPFLAGS=$CPPFLAGS
CPPFLAGS=$SSL_INCLUDE
AC_EGREP_CPP(yes,[
#include <openssl/opensslconf.h>
#ifndef OPENSSL_NO_KRB5
yes
#endif
],[
AC_MSG_RESULT([yes])
ssl_krb5_enabled=yes
if test "x$SSL_DYNAMIC_ONLY" != "xyes"; then
if test -f $SSL_LIBDIR/libkrb5.a; then
SSL_LINK_WITH_KERBEROS=yes
STATIC_KERBEROS_LIBS="$SSL_LIBDIR/libkrb5.a"
if test -f $SSL_LIBDIR/libkrb5support.a; then
STATIC_KERBEROS_LIBS="$STATIC_KERBEROS_LIBS $SSL_LIBDIR/libkrb5support.a"
fi
if test -f $SSL_LIBDIR/libk5crypto.a; then
STATIC_KERBEROS_LIBS="$STATIC_KERBEROS_LIBS $SSL_LIBDIR/libk5crypto.a"
fi
if test -f $SSL_LIBDIR/libresolv.a; then
STATIC_KERBEROS_LIBS="$STATIC_KERBEROS_LIBS $SSL_LIBDIR/libresolv.a"
fi
if test -f $SSL_LIBDIR/libcom_err.a; then
STATIC_KERBEROS_LIBS="$STATIC_KERBEROS_LIBS $SSL_LIBDIR/libcom_err.a"
fi
else
AC_MSG_WARN([Kerberos needed but no kerberos static libraries found])
AC_MSG_WARN([Rescanning for dynamic SSL libraries])
enable_dynamic_ssl=yes
ssl_done=no
SSL_LINK_WITH_KERBEROS=no
STATIC_KERBEROS_LIBS=""
ssl_krb5_enabled=no
SSL_WITH_KERBEROS=no
fi
else
SSL_LINK_WITH_KERBEROS=no
STATIC_KERBEROS_LIBS=""
fi
],[
AC_MSG_RESULT([no])
ssl_krb5_enabled=no
SSL_WITH_KERBEROS=no
])
CPPFLAGS=$old_CPPFLAGS
SSL_KRB5_INCLUDE=
if test "x$ssl_krb5_enabled" = "xyes" ; then
AC_MSG_CHECKING(for krb5.h in standard locations)
for dir in $extra_dir $SSL_ROOT/include $SSL_ROOT/include/openssl \
$SSL_ROOT/include/kerberos /cygdrive/c/kerberos/include \
/usr/local/kerberos/include /usr/kerberos/include \
/usr/include
do
if test -f "$dir/krb5.h" ; then
SSL_KRB5_INCLUDE="$dir"
break
fi
done
if test "x$SSL_KRB5_INCLUDE" = "x" ; then
AC_MSG_RESULT([not found])
SSL_APP=
CRYPTO_APP=
SSH_APP=
AC_MSG_WARN([OpenSSL is configured for kerberos but no krb5.h found])
for a in ssl crypto ssh ; do
echo "OpenSSL is configured for kerberos but no krb5.h found" > $ERL_TOP/lib/$a/SKIP
done
else
AC_MSG_RESULT([found in $SSL_KRB5_INCLUDE])
SSL_INCLUDE="$SSL_INCLUDE -I$SSL_KRB5_INCLUDE"
fi
fi
fi
done # while test ssl_done != yes
#--------------------------------------------------------------------
# Os mon stuff.
#--------------------------------------------------------------------
AC_SUBST(os_mon_programs)
AC_SUBST(CPU_SUP_LIBS)
AC_CHECK_LIB(kstat, kstat_open, [
os_mon_programs="$os_mon_programs cpu_sup"
CPU_SUP_LIBS="$CPU_SUP_LIBS -lkstat"
])
case $host_os in
solaris2*)
os_mon_programs="$os_mon_programs ferrule mod_syslog" ;;
linux*)
os_mon_programs="$os_mon_programs cpu_sup" ;;
esac
dnl
dnl Then there are a number of apps which needs a java compiler...
dnl
need_java="jinterface ic/java_src"
# Remove all SKIP files from previous runs
for a in $need_java ; do
/bin/rm -f $ERL_TOP/lib/$a/SKIP
done
AC_CHECK_PROGS(JAVAC, javac.sh javac guavac gcj jikes bock)
if test -n "$JAVAC"; then
dnl Make sure it's at least JDK 1.5
AC_CACHE_CHECK(for JDK version 1.5,
ac_cv_prog_javac_ver_1_5,
[ERL_TRY_LINK_JAVA([], [for (String i : args);],
ac_cv_prog_javac_ver_1_5=yes, ac_cv_prog_javac_ver_1_5=no)])
if test $ac_cv_prog_javac_ver_1_5 = no; then
unset -v JAVAC
fi
fi
if test -z "$JAVAC"; then
AC_MSG_WARN([Could not find any usable java compiler, will skip: jinterface])
for a in $need_java ; do
echo "No Java compiler found" > $ERL_TOP/lib/$a/SKIP
done
fi
dnl
dnl Orber has a c++ example, this isn't the right way to check for
dnl it, but....
dnl
CXXFLAGS=
AC_SUBST(CXXFLAGS)
dnl this deliberately does not believe that 'gcc' is a C++ compiler
AC_CHECK_PROGS(CXX, $CCC c++ g++ CC cxx cc++ cl, false)
# Remove SKIP file from previous run
/bin/rm -f $ERL_TOP/lib/orber/SKIP
if test "$CXX" = false; then
echo "No C++ compiler found" > $ERL_TOP/lib/orber/SKIP
fi
dnl ----------------------------------------------------------------------
dnl Include CPPFLAGS in CFLAGS
dnl ----------------------------------------------------------------------
CFLAGS="$CFLAGS $CPPFLAGS"
#
# Currently if we compile for 64 bits we want to compile
# some external port programs using 32 bits
#
# If not defined we trust the C compiler in $CC to do 32 bits
if test -z "$CC32"; then
CC32="$CC"
fi
if test -z "$CFLAGS32"; then
if test $ac_cv_sizeof_void_p != 4; then
# We are compiling default 64 bits and use -m32 for 32 bit compilations
CFLAGS32="$CFLAGS -m32"
else
CFLAGS32="$CFLAGS"
fi
fi
AC_SUBST(CC32)
AC_SUBST(CFLAGS32)
dnl
dnl ERTS_EMU_CMDLINE_FLAGS will force modification of config.h when
dnl the emulator command line flags are modified by configure, which
dnl in turn will make 'make' detect that files depending on config.h
dnl needs to be rebuilt.
dnl
AC_DEFINE_UNQUOTED(ERTS_EMU_CMDLINE_FLAGS,
"$STATIC_CFLAGS $CFLAGS $DEBUG_CFLAGS $EMU_THR_DEFS $DEFS $WFLAGS",
[The only reason ERTS_EMU_CMDLINE_FLAGS exists is to force modification of config.h when the emulator command line flags are modified by configure])
dnl ----------------------------------------------------------------------
dnl Directories needed for the build
dnl ----------------------------------------------------------------------
erts=${erl_top}/erts
erts_dirs="
$erts/obj $erts/obj.debug
$erts/obj/$host
$erts/obj.debug/$host
"
for d in ${erl_top}/bin ${erl_top}/bin/$host $erts_dirs ;
do
if test ! -d $d; then
mkdir -p 1>/dev/null 2>&1 $d
fi
done
dnl ---------------------------------------------------------------------
dnl Autoheader macro for adding code at top and bottom of config.h.in
dnl ---------------------------------------------------------------------
AH_TOP([
#define GHBN_R_SOLARIS 2
#define GHBN_R_AIX 3
#define GHBN_R_GLIBC 4
])
AH_BOTTOM([
/* Redefine in6_addr. XXX this should be moved to the files where it's used? */
#ifdef HAVE_IN_ADDR6_STRUCT
#define in6_addr in_addr6
#endif
/* Define a reasonable default for INADDR_LOOPBACK */
/* XXX this should be moved to the files where it's used? */
#ifdef HAVE_NO_INADDR_LOOPBACK
#define INADDR_LOOPBACK (u_long)0x7F000001
#endif
#ifdef REDEFINE_FD_SETSIZE
#define FD_SETSIZE 1024
#endif
#ifdef HAVE_GETHRVTIME_PROCFS_IOCTL
#define HAVE_GETHRVTIME
#endif
#ifndef HAVE_FINITE
# if defined(HAVE_ISINF) && defined(HAVE_ISNAN)
# define USE_ISINF_ISNAN
# endif
#endif
#if defined(DEBUG) && defined(USE_THREADS) && !defined(ERTS_ENABLE_LOCK_CHECK)
#define ERTS_ENABLE_LOCK_CHECK 1
#endif
])
dnl ----------------------------------------------------------------------
dnl Output the result.
dnl ----------------------------------------------------------------------
dnl Note that the output files are relative to $srcdir
AC_OUTPUT(
emulator/$host/Makefile:emulator/Makefile.in
emulator/zlib/$host/Makefile:emulator/zlib/Makefile.in
emulator/pcre/$host/Makefile:emulator/pcre/Makefile.in
epmd/src/$host/Makefile:epmd/src/Makefile.in
etc/common/$host/Makefile:etc/common/Makefile.in
include/internal/$host/ethread.mk:include/internal/ethread.mk.in
include/internal/$host/erts_internal.mk:include/internal/erts_internal.mk.in
lib_src/$host/Makefile:lib_src/Makefile.in
Makefile:Makefile.in
../make/$host/otp.mk:../make/otp.mk.in
../make/$host/otp_ded.mk:../make/otp_ded.mk.in
dnl
dnl The ones below should be moved to their respective lib
dnl
../lib/ic/c_src/$host/Makefile:../lib/ic/c_src/Makefile.in
../lib/os_mon/c_src/$host/Makefile:../lib/os_mon/c_src/Makefile.in
../lib/ssl/c_src/$host/Makefile:../lib/ssl/c_src/Makefile.in
../lib/ssl/examples/certs/$host/Makefile:../lib/ssl/examples/certs/Makefile.in
../lib/crypto/c_src/$host/Makefile:../lib/crypto/c_src/Makefile.in
../lib/orber/c_src/$host/Makefile:../lib/orber/c_src/Makefile.in
../lib/runtime_tools/c_src/$host/Makefile:../lib/runtime_tools/c_src/Makefile.in
../lib/tools/c_src/$host/Makefile:../lib/tools/c_src/Makefile.in
../lib/asn1/c_src/$host/Makefile:../lib/asn1/c_src/Makefile.in
)
