dnl Process this file with autoconf to produce a configure script. -*-m4-*- dnl %CopyrightBegin% dnl dnl Copyright Ericsson AB 1997-2019. All Rights Reserved. dnl dnl Licensed under the Apache License, Version 2.0 (the "License"); dnl you may not use this file except in compliance with the License. dnl You may obtain a copy of the License at dnl dnl http://www.apache.org/licenses/LICENSE-2.0 dnl dnl Unless required by applicable law or agreed to in writing, software dnl distributed under the License is distributed on an "AS IS" BASIS, dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. dnl See the License for the specific language governing permissions and dnl limitations 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) LM_PRECIOUS_VARS 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=$host fi if test "$cross_compiling" = "yes"; then CROSS_COMPILING=yes else CROSS_COMPILING=no fi AC_SUBST(CROSS_COMPILING) ERL_XCOMP_SYSROOT_INIT 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/$host/erl_int_sizes_config.h:include/erl_int_sizes_config.h.in) dnl ---------------------------------------------------------------------- dnl Optional features. dnl ---------------------------------------------------------------------- ENABLE_ALLOC_TYPE_VARS= AC_SUBST(ENABLE_ALLOC_TYPE_VARS) AC_ARG_ENABLE(bootstrap-only, AS_HELP_STRING([--enable-bootstrap-only], [enable bootstrap only configuration]), [ if test "X$enableval" = "Xyes"; then # Disable stuff not necessary in a bootstrap only system in order # to speed up things by reducing the amount of stuff needing to be # built... with_termcap=no with_ssl=no with_ssl_zlib=no enable_hipe=no enable_sctp=no fi ]) AC_ARG_ENABLE(dirty-schedulers-test, AS_HELP_STRING([--enable-dirty-schedulers-test], [enable dirty scheduler test (for debugging purposes)]), [ case "$enableval" in yes) enable_dirty_schedulers_test=yes ;; *) enable_dirty_schedulers_test=no ;; esac ], enable_dirty_schedulers_test=no) AC_ARG_ENABLE(smp-require-native-atomics, AS_HELP_STRING([--disable-smp-require-native-atomics], [disable the SMP requirement of a native atomic implementation]), [ case "$enableval" in no) smp_require_native_atomics=no ;; *) smp_require_native_atomics=yes ;; esac ], smp_require_native_atomics=yes) AC_ARG_WITH(termcap, AS_HELP_STRING([--with-termcap], [use termcap (default)]) AS_HELP_STRING([--without-termcap], [do not use any termcap libraries (ncurses,curses,termcap,termlib)]), [], [with_termcap=yes]) AC_ARG_ENABLE(lock-checking, AS_HELP_STRING([--enable-lock-checking], [enable lock checking]), [ case "$enableval" in no) enable_lock_check=no ;; *) enable_lock_check=yes ;; esac ], enable_lock_check=no) AC_ARG_ENABLE(lock-counter, AS_HELP_STRING([--enable-lock-counter], [enable lock counters]), [ case "$enableval" in no) enable_lock_count=no ;; *) enable_lock_count=yes ;; esac ], enable_lock_count=no) AC_ARG_ENABLE(kernel-poll, AS_HELP_STRING([--enable-kernel-poll], [enable kernel poll support]) AS_HELP_STRING([--disable-kernel-poll], [disable kernel poll support]), [ case "$enableval" in no) enable_kernel_poll=no ;; *) enable_kernel_poll=yes ;; esac ], enable_kernel_poll=unknown) AC_ARG_ENABLE(sctp, AS_HELP_STRING([--enable-sctp], [enable sctp support (default) to on demand load the SCTP library in runtime if needed]) AS_HELP_STRING([--enable-sctp=lib], [enable sctp support to link against the SCTP library]) AS_HELP_STRING([--disable-sctp], [disable sctp support]), [ case "x$enableval" in xno|xyes|xlib|x) ;; x*) AC_MSG_ERROR("invalid value --enable-sctp=$enableval") ;; esac ]) AC_ARG_ENABLE(hipe, AS_HELP_STRING([--enable-hipe], [enable hipe support]) AS_HELP_STRING([--disable-hipe], [disable hipe support])) AC_ARG_ENABLE(native-libs, AS_HELP_STRING([--enable-native-libs], [compile Erlang libraries to native code])) AC_ARG_ENABLE(fp-exceptions, AS_HELP_STRING([--enable-fp-exceptions], [use hardware floating point exceptions (default if hipe enabled)]), [ case "$enableval" in no) enable_fp_exceptions=no ;; *) enable_fp_exceptions=yes ;; esac ],enable_fp_exceptions=auto) AC_ARG_ENABLE(m64-build, AS_HELP_STRING([--enable-m64-build], [build 64bit binaries using the -m64 flag to (g)cc]), [ case "$enableval" in no) enable_m64_build=no ;; *) enable_m64_build=yes ;; esac ],enable_m64_build=no) AC_ARG_ENABLE(m32-build, AS_HELP_STRING([--enable-m32-build], [build 32bit binaries using the -m32 flag to (g)cc]), [ case "$enableval" in no) enable_m32_build=no ;; *) enable_m32_build=yes ;; esac ],enable_m32_build=no) AC_ARG_WITH(dynamic-trace, AS_HELP_STRING([--with-dynamic-trace={dtrace|lttng|systemtap}], [specify use of dynamic trace framework, dtrace, lttng or systemtap]) AS_HELP_STRING([--without-dynamic-trace], [don't enable any dynamic tracing (default)])) if test X"$with_dynamic_trace" = X""; then with_dynamic_trace=no fi case "$with_dynamic_trace" in no) DYNAMIC_TRACE_FRAMEWORK=;; lttng) AC_DEFINE(USE_LTTNG,[1], [Define if you want to use lttng for dynamic tracing]) DYNAMIC_TRACE_FRAMEWORK=lttng;; dtrace) AC_DEFINE(USE_DTRACE,[1], [Define if you want to use dtrace for dynamic tracing]) DYNAMIC_TRACE_FRAMEWORK=dtrace;; systemtap) AC_DEFINE(USE_SYSTEMTAP,[1], [Define if you want to use systemtap for dynamic tracing]) DYNAMIC_TRACE_FRAMEWORK=systemtap;; *) AC_MSG_ERROR(Unknown dynamic tracing framework specified with --with-dynamic-trace!);; esac if test X"$DYNAMIC_TRACE_FRAMEWORK" != X""; then AC_DEFINE(USE_DYNAMIC_TRACE,[1], [Define if you want to use dynamic tracing]) fi AC_ARG_ENABLE(vm-probes, AS_HELP_STRING([--enable-vm-probes], [add dynamic trace probes to the Beam VM (only possible if --with-dynamic-trace is enabled, and then default)]), [ case "$enableval" in no) use_vm_probes=no ;; *) if test X"$DYNAMIC_TRACE_FRAMEWORK" != X""; then use_vm_probes=yes ; else AC_MSG_ERROR(Can not enable VM probes without any dynamic tracing framework!); fi;; esac ], if test X"$DYNAMIC_TRACE_FRAMEWORK" != X""; then use_vm_probes=yes ; else use_vm_probes=no fi) AC_SUBST(USE_VM_PROBES) if test X"$DYNAMIC_TRACE_FRAMEWORK" != X"lttng"; then if test X"$use_vm_probes" = X"yes"; then USE_VM_PROBES=yes AC_DEFINE(USE_VM_PROBES,[1], [Define to enable VM dynamic trace probes]) fi fi AC_ARG_WITH(assumed-cache-line-size, AS_HELP_STRING([--with-assumed-cache-line-size=SIZE], [specify assumed cache line size in bytes (valid values are powers of two between and including 16 and 8192; default is 64)])) dnl Require the assumed cache-line size to be a power of two between 16 and 8192 case "$with_assumed_cache_line_size" in ""|no|yes) with_assumed_cache_line_size=64;; 16|32|64|128|256|512|1024|2048|4096|8192) ;; *) AC_MSG_ERROR([Invalid assumed cache-line size of $with_assumed_cache_line_size bytes]) ;; esac AC_DEFINE_UNQUOTED(ASSUMED_CACHE_LINE_SIZE, $with_assumed_cache_line_size, [Assumed cache-line size (in bytes)]) AC_ARG_ENABLE(systemd, AS_HELP_STRING([--enable-systemd], [enable systemd support in epmd]), [], [enable_systemd=no]) AC_ARG_ENABLE(saved-compile-time, AS_HELP_STRING([--disable-saved-compile-time], [disable saved compile time]), [ case "$enableval" in no) save_compile_time=0 ;; *) save_compile_time=1 ;; esac ], save_compile_time=1) AC_DEFINE_UNQUOTED(ERTS_SAVED_COMPILE_TIME, $save_compile_time, [Save compile time?]) AC_ARG_WITH(microstate-accounting, AS_HELP_STRING([--with-microstate-accounting={yes|extra}], [enable microstate account, possibly with extra detailed states]) AS_HELP_STRING([--without-microstate-accounting], [don't enable microstate accounting]), [],[with_microstate_accounting=yes]) case "$with_microstate_accounting" in yes) AC_DEFINE(ERTS_ENABLE_MSACC,[1], [Define as 1 if you want to enable microstate accounting, 2 if you want extra states]) ;; extra) AC_DEFINE(ERTS_ENABLE_MSACC,[2], [Define as 1 if you want to enable microstate accounting, 2 if you want extra states]) ;; *) ;; esac 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) AC_MSG_CHECKING([OTP release]) [SYSTEM_VSN=`cat $ERL_TOP/OTP_VERSION | sed "s|\([0-9]*\).*|\1|"`] AC_MSG_RESULT([$SYSTEM_VSN]) AC_SUBST(SYSTEM_VSN) AC_MSG_CHECKING([OTP version]) [OTP_VERSION=`cat $ERL_TOP/OTP_VERSION`] AC_MSG_RESULT([$OTP_VERSION]) AC_SUBST(OTP_VERSION) if test X${enable_m64_build} = Xyes; then case $CFLAGS in *-m64*) ;; *) CFLAGS="-m64 $CFLAGS" ;; esac else if test X${enable_m32_build} = Xyes; then case $CFLAGS in *-m32*) ;; *) CFLAGS="-m32 $CFLAGS" ;; esac ; fi fi AC_ARG_ENABLE(static-nifs, AS_HELP_STRING([--enable-static-nifs], [link nifs statically. If yes then all nifs in all Erlang/OTP applications will be statically linked into the main binary. It is also possible to give a list of nifs that should be linked statically. The list should be a comma separated and contain the absolute path to a .a archive for each nif that is to be statically linked. The name of the .a archive has to be the same as the name of the nif. Note that you have to link any external dependencies that the nifs have to the main binary, so for the crypto nif you want to pass LIBS=-lcrypto to configure.]), STATIC_NIFS="$enableval", STATIC_NIFS=no) AC_SUBST(STATIC_NIFS) AC_ARG_ENABLE(static-drivers, AS_HELP_STRING([--enable-static-drivers], [comma separated list of linked-in drivers to link statically with the main binary. The list should contain the absolute path to a .a archive for each driver that is to be statically linked. The name of the .a archive has to be the same as the name of the driver.]), STATIC_DRIVERS="$enableval", STATIC_DRIVERS=no) AC_SUBST(STATIC_DRIVERS) AC_ARG_WITH(ets-write-concurrency-locks, AS_HELP_STRING([--with-ets-write-concurrency-locks={8|16|32|64|128|256}], [specify how many locks the write_concurrency option for ets should use.]) AS_HELP_STRING([--without-ets-write-concurrency-locks], [use the default number of write_concurrency locks (default)])) if test X"$with_ets_write_concurrency_locks" != X""; then AC_DEFINE_UNQUOTED(ERTS_DB_HASH_LOCK_CNT,$with_ets_write_concurrency_locks, [Define to override the default number of write_concurrency locks]) fi AC_ARG_WITH(spectre-mitigation, AS_HELP_STRING([--with-spectre-mitigation={yes|incomplete}], [enable spectre mitigation, either fully or with mitigations disabled in a handful places like the interpreter]) AS_HELP_STRING([--without-spectre-mitigation], [build without spectre mitigation]), [],[with_spectre_mitigation=no]) case "$with_spectre_mitigation" in no) ;; yes) ;; incomplete) ;; *) AC_MSG_ERROR([Invalid spectre mitigation setting]) ;; esac i_noretpoline_attr="" if test X"$with_spectre_mitigation" != X"no"; then CFLAGS="$CFLAGS -mindirect-branch=thunk" AC_MSG_CHECKING([for spectre mitigation]) AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([],[return 0;])], [AC_MSG_RESULT([yes])], [AC_MSG_ERROR([no])]) if test X"$with_spectre_mitigation" = X"incomplete"; then # gcc and clang support this attribute if they're recent enough. Note # that we must compile with -Werror to check for actual support as they # warn rather than error out on unsupported attributes. i_noretpoline_attr='__attribute__((__indirect_branch__("keep")))' i_preserve_cflags="$CFLAGS" CFLAGS="$CFLAGS -Werror" AC_MSG_CHECKING([whether spectre mitigation can be disabled on a per-function basis]) AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([$i_noretpoline_attr],[return 0;])], [AC_MSG_RESULT([yes])], [AC_MSG_ERROR([no])]) CFLAGS="$i_preserve_cflags" fi fi AC_DEFINE_UNQUOTED(ERTS_NO_RETPOLINE, $i_noretpoline_attr, [Per-function attribute for disabling retpoline. This is *only* defined when --with-spectre-mitigation=incomplete and has no effects otherwise]) 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="$CPPFLAGS -D_WIN32_WINNT=0x0600 -DWINVER=0x0600" ;; *) ;; esac LM_WINDOWS_ENVIRONMENT dnl dnl Flags to the C compiler dnl dnl Make sure we find config.h dnl ERTS_CONFIG_H_IDIR="-I${ERL_TOP}/erts/$host" AC_SUBST(ERTS_CONFIG_H_IDIR) extra_flags="$ERTS_CONFIG_H_IDIR $OTP_EXTRA_FLAGS" CFLAGS="$CFLAGS $extra_flags" DEBUG_CFLAGS="-g $CPPFLAGS $extra_flags $DEBUG_CFLAGS" DEBUG_FLAGS=-g dnl dnl Adjust DEBUG_CFLAGS to match CFLAGS in terms of -m dnl case $CFLAGS in *-m64*) case $DEBUG_CFLAGS in *-m64*) ;; *) DEBUG_CFLAGS="-m64 $DEBUG_CFLAGS" ;; esac ;; *-m32*) case $DEBUG_CFLAGS in *-m32*) ;; *) DEBUG_CFLAGS="-m32 $DEBUG_CFLAGS" ;; esac ;; *) ;; esac lfs_conf=ok lfs_source=none if test "${LFS_CFLAGS+set}" = "set" || \ test "${LFS_LDFLAGS+set}" = "set" || \ test "${LFS_LIBS+set}" = "set"; then lfs_source=user else LM_CHECK_GETCONF test "$GETCONF" = "false" || lfs_source=getconf fi if test "$lfs_source" = "none"; then AC_MSG_WARN([Do not know how to check for large file support flags; no getconf is available]) else for var in CFLAGS LDFLAGS LIBS; do AC_MSG_CHECKING([for large file support $var]) if test $lfs_source = user; then eval "lfs_val=\"\$LFS_$var\"" else eval "lfs_var=LFS_$var" lfs_val=`$GETCONF $lfs_var 2>/dev/null` || lfs_conf=failed if test $lfs_conf = failed; then AC_MSG_RESULT([failed]) break fi eval "$lfs_var=\"$lfs_val\"" fi test "$lfs_val" != "" || lfs_val=none AC_MSG_RESULT([$lfs_val]) done if test $lfs_conf = failed; then AC_MSG_WARN([Check for large file support flags failed; $GETCONF failed]) else CFLAGS="$CFLAGS $LFS_CFLAGS" DEBUG_CFLAGS="$DEBUG_CFLAGS $LFS_CFLAGS" LDFLAGS="$LDFLAGS $LFS_LDFLAGS" LIBS="$LIBS $LFS_LIBS" fi fi if test "x$GCC" = xyes; then # Treat certain GCC warnings as errors LM_TRY_ENABLE_CFLAG([-Werror=return-type], [WERRORFLAGS]) LM_TRY_ENABLE_CFLAG([-Werror=implicit], [WERRORFLAGS]) LM_TRY_ENABLE_CFLAG([-Werror=undef], [WERRORFLAGS]) # until the emulator can handle this, I suggest we turn it off! #WFLAGS="-Wall -Wshadow -Wcast-qual -Wmissing-declarations" WFLAGS="-Wall -Wstrict-prototypes" case "$host_cpu" in tile*) # tile-gcc is a bit stricter with -Wmissing-prototypes than other gccs, # and too strict for our taste. ;; *) WFLAGS="$WFLAGS -Wmissing-prototypes";; esac 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=$saved_CFLAGS else WFLAGS="" WERRORFLAGS="" fi AC_MSG_CHECKING([CFLAGS for -O switch]) case "$CFLAGS" in *-O*) AC_MSG_RESULT([yes]) ;; *) AC_MSG_ERROR([ CFLAGS must contain a -O flag. If you need to edit the CFLAGS you probably also want to add the default CFLAGS. The default CFLAGS are "-O2 -g". If you want to build erts without any optimization, pass -O0 to CFLAGS.]) ;; esac dnl DEBUG_FLAGS is obsolete (I hope) AC_SUBST(DEBUG_FLAGS) AC_SUBST(DEBUG_CFLAGS) AC_SUBST(WFLAGS) AC_SUBST(WERRORFLAGS) ## Check if we can do profile guided optimization of beam_emu LM_CHECK_ENABLE_CFLAG([-fprofile-generate -Werror],[PROFILE_GENERATE]) LM_CHECK_ENABLE_CFLAG([-fprofile-use -Werror],[PROFILE_USE]) LM_CHECK_ENABLE_CFLAG([-fprofile-use -fprofile-correction -Werror],[PROFILE_CORRECTION]) if test "X$PROFILE_CORRECTION" = "Xtrue"; then saved_CFLAGS=$CFLAGS saved_LDFLAGS=$LDFLAGS CFLAGS="-fprofile-generate $saved_CFLAGS" LDFLAGS="-fprofile-generate $saved_LDFLAGS" AC_MSG_CHECKING([whether $CC links with -fprofile-generate]) AC_LINK_IFELSE([AC_LANG_PROGRAM([],[return 0;])], [AC_MSG_RESULT([yes]) PROFILE_GENERATE=true], [AC_MSG_RESULT([no]) PROFILE_GENERATE=false]) CFLAGS=$saved_CFLAGS LDFLAGS=$saved_LDFLAGS fi ## Check if this is clang LM_CHECK_ENABLE_CFLAG([-fprofile-instr-generate -Werror],[PROFILE_INSTR_GENERATE]) if test "X$PROFILE_INSTR_GENERATE" = "Xtrue"; then # It was clang, now we also have to check if we have llvm-profdata and that # we can link programs with -fprofile-instr-use saved_CFLAGS=$CFLAGS; CFLAGS="-fprofile-instr-generate -Werror $saved_CFLAGS" AC_RUN_IFELSE([AC_LANG_PROGRAM([],[])], [AC_CHECK_PROGS([LLVM_PROFDATA], [llvm-profdata]) AC_CHECK_PROGS([XCRUN], [xcrun]) if test "X$XCRUN" != "X" -a "X$LLVM_PROFDATA" = "X"; then AC_MSG_CHECKING([for $XCRUN llvm-profdata]) if $XCRUN llvm-profdata --help 2>& AS_MESSAGE_LOG_FD >& AS_MESSAGE_LOG_FD; then LLVM_PROFDATA="$XCRUN llvm-profdata" AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) fi fi AC_SUBST(LLVM_PROFDATA) if test "X$LLVM_PROFDATA" != "X"; then CFLAGS="-fprofile-instr-use=default.profdata -Werror $saved_CFLAGS"; $LLVM_PROFDATA merge -output=default.profdata *.profraw; AC_MSG_CHECKING([whether $CC accepts -fprofile-instr-use=default.profdata -Werror]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[return 0;])], [AC_MSG_RESULT([yes]) PROFILE_INSTR_USE=true], [AC_MSG_RESULT([no]) PROFILE_INSTR_USE=false]) rm -f default.profdata fi], [], [AC_MSG_NOTICE([Disabling PGO when cross-compiling])]) rm -f *.profraw CFLAGS=$saved_CFLAGS; fi AC_ARG_ENABLE(pgo, AS_HELP_STRING([--enable-pgo], [build erts using PGO (profile guided optimization)]), [ case "$enableval" in no) enable_pgo=no ;; *) enable_pgo=yes ;; esac ],enable_pgo=default) USE_PGO=false AC_MSG_CHECKING([whether to do PGO of erts]) if test $enable_pgo = no; then AC_MSG_RESULT([no, disabled by user]) elif test $CROSS_COMPILING = yes; then if test $enable_pgo = yes; then AC_MSG_ERROR(cannot use PGO when cross-compiling) else AC_MSG_RESULT([no, cross compiling]) fi elif test "X$host" = "Xwin32"; then AC_MSG_RESULT([no, not supported in windows]) elif test "X$PROFILE_GENERATE" = "Xtrue" -a "X$PROFILE_USE" = "Xtrue" -a "X$PROFILE_CORRECTION" = "Xtrue"; then ## We need -fprofile-generate and -fprofile-correction support to use PGO with ## gcc as multiple threads run within the executed object files USE_PGO=true PROFILE_COMPILER=gcc AC_MSG_RESULT([yes, using -fprofile-generate -fprofile-correction]) elif test "X$PROFILE_INSTR_GENERATE" = "Xtrue" -a "X$PROFILE_INSTR_USE" = "Xtrue"; then USE_PGO=true PROFILE_COMPILER=clang AC_MSG_RESULT([yes, using -fprofile-instr-generate]) else if test $enable_pgo = yes; then AC_MSG_ERROR(cannot use PGO with this compiler) else AC_MSG_RESULT([no]) fi fi AC_SUBST(USE_PGO) AC_SUBST(PROFILE_COMPILER) AC_CHECK_SIZEOF(void *) # Needed for ARCH and smp checks below if test "x$ac_cv_sizeof_void_p" = x8; then AC_SUBST(EXTERNAL_WORD_SIZE, 64) else AC_SUBST(EXTERNAL_WORD_SIZE, 32) fi 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 AC_SUBST(OPSYS) LM_HARDWARE_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*) case $LDFLAGS in *-m32*) ;; *) LDFLAGS="-m32 $LDFLAGS" ;; esac ;; *) if test X${enable_m64_build} = Xyes; then AC_MSG_NOTICE([Adjusting LDFLAGS to use -m64]) case $LDFLAGS in *-m64*) ;; *) LDFLAGS="-m64 $LDFLAGS" ;; esac fi; if test X${enable_m32_build} = Xyes; then AC_MSG_NOTICE([Adjusting LDFLAGS to use -m32]) ; case $LDFLAGS in *-m32*) ;; *) LDFLAGS="-m32 $LDFLAGS" ;; esac ; fi ;; esac AC_MSG_CHECKING(if VM has to be linked with Carbon framework) case $ARCH-$OPSYS in *-darwin*) LIBCARBON="-framework Carbon -framework Cocoa" AC_MSG_RESULT([yes]) ;; *) LIBCARBON= AC_MSG_RESULT([no]) ;; esac AC_SUBST(LIBCARBON) _search_path=/bin:/usr/bin:/usr/local/bin:$PATH AC_PATH_PROG(MKDIR, mkdir, false, $_search_path) if test "$ac_cv_path_MKDIR" = false; then AC_MSG_ERROR([No 'mkdir' command found]) fi AC_PATH_PROG(CP, cp, false, $_search_path) if test "$ac_cv_path_CP" = false; then AC_MSG_ERROR([No 'cp' command found]) fi _search_path= # Remove old configuration information. # Next line should be before first output to CONN_INFO. So this is # just the right place. rm -f "$ERL_TOP/erts/CONF_INFO" dnl Check if we should/can build a sharing-preserving emulator AC_MSG_CHECKING(if we are building a sharing-preserving emulator) if test "$enable_sharing_preserving" = "yes"; then AC_DEFINE(SHCOPY, [1], [Define if building a sharing-preserving emulator]) AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) fi 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 "$ac_cv_path_PERL" = false; then AC_MSG_ERROR([Perl version 5 is required to build the emulator!]) fi AC_PROG_LN_S AC_CHECK_TOOL([AR], [ar], [false]) if test "$ac_cv_prog_AR" = false; then AC_MSG_ERROR([No 'ar' command found in PATH]) fi # # Get programs needed for building the documentation # ## Delete previous failed configure results if test -f doc/CONF_INFO; then rm -f doc/CONF_INFO fi AC_CHECK_PROGS(XSLTPROC, xsltproc) if test -z "$XSLTPROC"; then echo "xsltproc" >> doc/CONF_INFO AC_MSG_WARN([No 'xsltproc' command found: the documentation cannot be built]) fi AC_CHECK_PROGS(FOP, fop) if test -z "$FOP"; then FOP="$ERL_TOP/make/fakefop" echo "fop" >> doc/CONF_INFO AC_MSG_WARN([No 'fop' command found: going to generate placeholder PDF files]) fi AC_CHECK_PROGS(XMLLINT, xmllint) if test -z "$XMLLINT"; then echo "xmllint" >> doc/CONF_INFO AC_MSG_WARN([No 'xmllint' command found: can't run the xmllint target for the documentation]) 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) dnl We want to use $(CC) as linker for the emulator regardless of dnl what the user say. This might not be the right way to do it, but dnl for now that is the way we do it. USER_LD=$LD USER_LDFLAGS="$LDFLAGS" LD='$(CC)' case $host_os in darwin*) saved_LDFLAGS="$LDFLAGS" LDFLAGS="$LDFLAGS -Wl,-no_weak_imports" AC_TRY_LINK([],[], [ LD_MAY_BE_WEAK=no ], [ LD_MAY_BE_WEAK=yes LDFLAGS="$saved_LDFLAGS" ]);; *) LD_MAY_BE_WEAK=no;; esac 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, ose, vxworks or win32 case $host in win32) ERLANG_OSTYPE=win32 ;; *) ERLANG_OSTYPE=unix ;; esac AC_SUBST(ERLANG_OSTYPE) # 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 AC_MSG_ERROR([cannot build emulator since no thread library was found]) fi TYPES=opt DIRTY_SCHEDULER_TEST=$enable_dirty_schedulers_test AC_SUBST(DIRTY_SCHEDULER_TEST) test $DIRTY_SCHEDULER_TEST != yes || { test -f "$ERL_TOP/erts/CONF_INFO" || echo "" > "$ERL_TOP/erts/CONF_INFO" cat >> $ERL_TOP/erts/CONF_INFO < "$ERL_TOP/erts/CONF_INFO" cat >> $ERL_TOP/erts/CONF_INFO < "$ERL_TOP/erts/CONF_INFO" cat >> $ERL_TOP/erts/CONF_INFO < "$ERL_TOP/erts/CONF_INFO" cat >> "$ERL_TOP/erts/CONF_INFO" < #include #include #include #include #include ], [ int fd = creat("conftest.temp", 0600); fallocate(fd, FALLOC_FL_KEEP_SIZE,(off_t) 1024,(off_t) 1024); ], i_cv_fallocate_works=yes, i_cv_fallocate_works=no) ]) if test $i_cv_fallocate_works = yes; then AC_DEFINE(HAVE_FALLOCATE, 1, Define if you have a working fallocate()) fi dnl * Old glibcs have broken posix_fallocate(). Make sure not to use it. dnl * It may also be broken in AIX. AC_CACHE_CHECK([whether posix_fallocate() works],i_cv_posix_fallocate_works,[ AC_TRY_RUN([ #if !defined(__sun) && !defined(__sun__) #define _XOPEN_SOURCE 600 #endif #include #include #include #include #if defined(__GLIBC__) && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 7)) possibly broken posix_fallocate #endif int main() { int fd = creat("conftest.temp", 0600); int ret; if (-1 == fd) { perror("creat()"); return 2; } ret = posix_fallocate(fd, 1024, 1024) < 0 ? 1 : 0; unlink("conftest.temp"); return ret; } ], [ i_cv_posix_fallocate_works=yes ], [ i_cv_posix_fallocate_works=no ], [ i_cv_posix_fallocate_works=no ]) ]) if test $i_cv_posix_fallocate_works = yes; then AC_DEFINE(HAVE_POSIX_FALLOCATE,, Define if you have a working posix_fallocate()) fi # # EMU_THR_LIB_NAME, EMU_THR_LIBS, EMU_THR_X_LIBS, and EMU_THR_DEFS is # used by the emulator, and can (but should not) be used by applications # that only require thread support when the emulator has thread support. # Other applications should use ETHR_LIB_NAME, ETHR_LIBS, ETHR_X_LIBS, # and ETHR_DEFS. # EMU_THR_LIB_NAME= EMU_THR_X_LIBS= EMU_THR_LIBS= EMU_THR_DEFS= # Threads enabled for emulator EMU_THR_LIB_NAME=$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$enable_lock_count" != "xno"; then TYPES="$TYPES lcnt" fi case $host_os in linux*) AC_MSG_CHECKING([whether dlopen() needs to be called before first call to dlerror()]) if test "x$ETHR_THR_LIB_BASE_TYPE" != "xposix_nptl"; 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 ;; *) ;; 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_SUBST(EMU_THR_LIB_NAME) AC_SUBST(EMU_THR_X_LIBS) AC_SUBST(EMU_THR_LIBS) AC_SUBST(EMU_THR_DEFS) if test "x$enable_lock_check" = "xno"; then EMU_LOCK_CHECKING=no else EMU_LOCK_CHECKING=yes fi AC_SUBST(EMU_LOCK_CHECKING) ERL_INTERNAL_LIBS dnl THR_LIBS and THR_DEFS are only used by odbc THR_LIBS=$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="tinfo 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 if test "X$host" != "Xwin32"; then AC_MSG_CHECKING(for wcwidth) AC_TRY_LINK([#include ], [wcwidth(0);], have_wcwidth=yes, have_wcwidth=no) if test $have_wcwidth = yes; then AC_MSG_RESULT([yes]) AC_DEFINE(HAVE_WCWIDTH, [1], [Define to 1 if you have a `wcwidth' function.]) fi fi dnl ------------- dnl zlib dnl ------------- AC_ARG_ENABLE(builtin-zlib, AS_HELP_STRING([--enable-builtin-zlib], [force use of our own built-in zlib]), [ case "$enableval" in no) enable_builtin_zlib=no ;; *) enable_builtin_zlib=yes ;; esac ], enable_builtin_zlib=no) Z_LIB= if test "x$enable_builtin_zlib" = "xyes"; then AC_DEFINE(HAVE_ZLIB_INFLATEGETDICTIONARY, 1, [Define if your zlib version defines inflateGetDictionary.]) AC_MSG_NOTICE([Using our own built-in zlib source]) else AC_MSG_CHECKING(for zlib 1.2.5 or higher) zlib_save_LIBS=$LIBS LIBS="-lz $LIBS" AC_LINK_IFELSE( [AC_LANG_PROGRAM([[ #include "zlib.h" ]],[[ #if ZLIB_VERNUM >= 0x1250 Bytef s[1]; s[0] = 0; (void) adler32((uLong)0, s, 1); #else #error "No zlib 1.2.5 or higher found" error #endif ]])], [ Z_LIB="-lz" AC_DEFINE(HAVE_LIBZ, 1, [Define to 1 if you have the `z' library (-lz).]) AC_MSG_RESULT(yes) ],[ AC_MSG_RESULT(no) ]) if test "$Z_LIB" != ""; then AC_MSG_CHECKING(for zlib inflateGetDictionary presence) AC_SEARCH_LIBS(inflateGetDictionary, [z], AC_DEFINE(HAVE_ZLIB_INFLATEGETDICTIONARY, 1, [Define if your zlib version defines inflateGetDictionary.])) fi LIBS=$zlib_save_LIBS fi AC_SUBST(Z_LIB) dnl ------------- dnl esock dnl ------------- AC_ARG_ENABLE(esock, AS_HELP_STRING([--enable-esock], [enable builtin experimental socket (as a nif) support (default)]) AS_HELP_STRING([--disable-esock], [disable builtin experimental socket (as a nif) support])) dnl Default value USE_ESOCK=yes if test "x$enable_esock" = "xyes"; then USE_ESOCK=yes else if test "x$enable_esock" = "xno"; then USE_ESOCK=no fi fi if test "x$USE_ESOCK" = "xyes"; then if test "x$USE_ESOCK" = "xyes"; then AC_CHECK_FUNCS([localtime_r strftime]) fi fi AC_SUBST(USE_ESOCK) dnl dnl This test kindly borrowed from Tcl dnl #-------------------------------------------------------------------- # Check for the existence of the -lsocket and -lnsl libraries. # The order here is important, so that they end up in the right # order in the command line generated by make. Here are some # special considerations: # 1. Use "connect" and "accept" to check for -lsocket, and # "gethostbyname" to check for -lnsl. # 2. Use each function name only once: can't redo a check because # autoconf caches the results of the last check and won't redo it. # 3. Use -lnsl and -lsocket only if they supply procedures that # aren't already present in the normal libraries. This is because # IRIX 5.2 has libraries, but they aren't needed and they're # bogus: they goof up name resolution if used. # 4. On some SVR4 systems, can't use -lsocket without -lnsl too. # To get around this problem, check for both libraries together # if -lsocket doesn't work by itself. #-------------------------------------------------------------------- tk_oldLibs=$LIBS erl_checkBoth=0 SOCKET_LIBS="" AC_CHECK_FUNC(connect, erl_checkSocket=0, erl_checkSocket=1) if test "$erl_checkSocket" = 1; then AC_CHECK_LIB(socket, main, SOCKET_LIBS="-lsocket", erl_checkBoth=1) fi if test "$erl_checkBoth" = 1; then LIBS="$LIBS -lsocket -lnsl" AC_CHECK_FUNC(accept, SOCKET_LIBS="-lsocket -lnsl") fi LIBS="$tk_oldLibs $SOCKET_LIBS" AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main, [SOCKET_LIBS="$SOCKET_LIBS -lnsl"])) AC_CHECK_FUNC(gethostbyname_r,have_gethostbyname_r=yes) LIBS="$tk_oldLibs $SOCKET_LIBS" AC_SUBST(SOCKET_LIBS) dnl dnl These gethostbyname thingies use old style AC_DEFINE for BC with ancient dnl autoconf... dnl if test "$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 $host_os in solaris2*) AC_DEFINE(HAVE_GETHOSTBYNAME_R, GHBN_R_SOLARIS, [Define to flavour of gethostbyname_r]) ;; aix4*) # AIX version also needs "struct hostent_data" defn AC_TRY_COMPILE([#include ], [struct hostent_data hd;], AC_DEFINE(HAVE_GETHOSTBYNAME_R, GHBN_R_AIX, [Define to flavour of gethostbyname_r])) ;; *) AC_EGREP_CPP(^yes$,[ #include #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 #include ], [ 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 ], AC_TRY_COMPILE([#include #include ], [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 ], [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 ], [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 $EMU_THR_DEFS" AC_HEADER_DIRENT AC_HEADER_STDC AC_HEADER_SYS_WAIT AC_HEADER_TIME dnl Interactive UX needs for socket related error codes. dnl Some Linuxes needs instead of dnl AC_CHECK_HEADERS(fcntl.h limits.h unistd.h syslog.h dlfcn.h ieeefp.h \ sys/types.h sys/stropts.h sys/sysctl.h \ sys/ioctl.h sys/time.h sys/uio.h sys/mman.h \ sys/socket.h sys/sockio.h sys/socketio.h \ net/errno.h malloc.h arpa/nameser.h libdlpi.h \ pty.h util.h libutil.h utmp.h langinfo.h poll.h sdkddkver.h) AC_CHECK_MEMBERS([struct ifreq.ifr_hwaddr], [], [], [#ifdef __WIN32__ #else #ifdef VXWORKS #else #include #endif #endif ]) AC_CHECK_MEMBERS([struct ifreq.ifr_enaddr], [], [], [#ifdef __WIN32__ #else #ifdef VXWORKS #else #include #endif #endif ]) dnl ---------------------------------------------------------------------- dnl Check the availability of systemd dnl ---------------------------------------------------------------------- if test x"$enable_systemd" != x"no"; then systemd_daemon_save_LIBS=$LIBS LIBS= AC_SEARCH_LIBS(sd_listen_fds,[systemd systemd-daemon], [have_sd_listen_fds=yes],[have_sd_listen_fds=no],$systemd_daemon_save_LIBS) AC_SEARCH_LIBS(sd_notify,[systemd systemd-daemon], [have_sd_notify=yes],[have_sd_notify=no],$systemd_daemon_save_LIBS) AC_CHECK_HEADERS(systemd/sd-daemon.h, [have_systemd_sd_daemon_h=yes],[have_systemd_sd_daemon_h=no]) if test x"$have_sd_listen_fds" = x"yes" && \ test x"$have_sd_notify" = x"yes" && \ test x"$have_systemd_sd_daemon_h" = x"yes"; then AC_DEFINE([HAVE_SYSTEMD_DAEMON],[1],[Define if you have systemd daemon]) SYSTEMD_DAEMON_LIBS=$LIBS elif test x"$enable_systemd" = x"yes"; then AC_MSG_FAILURE([--enable-systemd was given, but test for systemd failed]) fi LIBS=$systemd_daemon_save_LIBS fi AC_SUBST(SYSTEMD_DAEMON_LIBS) dnl ---------------------------------------------------------------------- dnl Check the availability for libdlpi dnl ---------------------------------------------------------------------- AC_CHECK_LIB(dlpi, dlpi_open) if test x"$ac_cv_lib_dlpi_dlpi_open" = x"no"; then unset -v ac_cv_lib_dlpi_dlpi_open dnl Try again now with -L/lib (or ditto 64) as argument to linker since dnl gcc makes /usr/ccs/bin/ld ignore the crle configured linker default paths dnl typically causing dlpi not being found on Solaris et.al save_ldflags="$LDFLAGS" try_dlpi_lib=/lib if test x"$ac_cv_sizeof_void_p" = x"8"; then if test -d /lib64; then try_dlpi_lib=/lib64 elif test -d /lib/64; then try_dlpi_lib=/lib/64 fi fi if test ! -f "$try_dlpi_lib/libdlpi.so" && \ test -f "$try_dlpi_lib/libdlpi.so.1" then dnl It looks like there is a missing symlink dnl - let's be helpful and notify the user dnl NOTE this help is far from perfect e.g if there would be no dnl *.so.1 but a *.so.1.123 or *.so.2 this will be no help AC_MSG_ERROR( [Your OS installation is missing a symbolic link. Maybe it lacks some development package(s)... It can anyhow be fixed with the following command: # ln -s libdlpi.so.1 $try_dlpi_lib/libdlpi.so ]) fi LDFLAGS="-L$try_dlpi_lib -R$try_dlpi_lib $LDFLAGS" unset -v try_dlpi_lib AC_MSG_NOTICE([Extending the search to include /lib]) AC_CHECK_LIB(dlpi, dlpi_open) if test x"$ac_cv_lib_dlpi_dlpi_open" = x"no"; then LDFLAGS="$save_ldflags" fi unset -v save_ldflags fi AC_CHECK_HEADER(sys/resource.h, [AC_DEFINE(HAVE_SYS_RESOURCE_H, 1, [Define to 1 if you have the header file]) AC_CHECK_DECLS([getrlimit, setrlimit, RLIMIT_STACK], [],[], [#include ])], [],[]) AC_CHECK_FUNCS([getrusage]) dnl Check if we have kernel poll support have_kernel_poll=no AC_CHECK_HEADER(sys/event.h, have_kernel_poll=kqueue) AC_CHECK_HEADER(sys/epoll.h, have_kernel_poll=epoll) AC_CHECK_HEADER(sys/devpoll.h, have_kernel_poll=/dev/poll) dnl Check if we have timerfds to be used for high accuracy dnl epoll_wait timeouts AC_CHECK_HEADERS([sys/timerfd.h]) dnl Check for kernel SCTP support AC_SUBST(LIBSCTP) if test "x$enable_sctp" != "xno" ; then AC_CHECK_HEADER(netinet/sctp.h, [LIBSCTP=libsctp.so.1 AC_DEFINE(HAVE_SCTP_H, [1], [Define to 1 if you have the header file])], [], [#if HAVE_SYS_SOCKET_H #include #endif ]) fi if test x"$ac_cv_header_netinet_sctp_h" = x"yes"; then AS_IF([test "x$enable_sctp" = "xlib"], AC_CHECK_LIB(sctp, sctp_bindx)) AC_CHECK_FUNCS([sctp_bindx sctp_peeloff sctp_getladdrs sctp_freeladdrs sctp_getpaddrs sctp_freepaddrs]) AC_CHECK_DECLS([SCTP_UNORDERED, SCTP_ADDR_OVER, SCTP_ABORT, SCTP_EOF, SCTP_SENDALL, SCTP_ADDR_CONFIRMED, SCTP_DELAYED_ACK_TIME, SCTP_EMPTY, SCTP_UNCONFIRMED, SCTP_CLOSED, SCTPS_IDLE, SCTP_BOUND, SCTPS_BOUND, SCTP_LISTEN, SCTPS_LISTEN, SCTP_COOKIE_WAIT, SCTPS_COOKIE_WAIT, SCTP_COOKIE_ECHOED, SCTPS_COOKIE_ECHOED, SCTP_ESTABLISHED, SCTPS_ESTABLISHED, SCTP_SHUTDOWN_PENDING, SCTPS_SHUTDOWN_PENDING, SCTP_SHUTDOWN_SENT, SCTPS_SHUTDOWN_SENT, SCTP_SHUTDOWN_RECEIVED, SCTPS_SHUTDOWN_RECEIVED, SCTP_SHUTDOWN_ACK_SENT, SCTPS_SHUTDOWN_ACK_SENT], [], [], [#if HAVE_SYS_SOCKET_H #include #endif #include ]) 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, struct sctp_event_subscribe.sctp_authentication_event, struct sctp_event_subscribe.sctp_sender_dry_event], [], [], [#if HAVE_SYS_SOCKET_H #include #endif #include ]) fi dnl Check for setns AC_CHECK_HEADERS(sched.h setns.h) AC_CHECK_FUNCS([setns]) 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 ], [#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) AC_CHECK_SIZEOF(time_t) BITS64= if test $ac_cv_sizeof_void_p = 8; then BITS64=yes fi AC_SUBST(BITS64) AC_MSG_CHECKING([for C compiler 'restrict' support]) restrict_keyword="" for x in restrict __restrict; do AC_TRY_COMPILE([int * $x foo(int * $x arg); int * $x foo(int * $x arg) { int * $x var=arg; return var;} ],[], [restrict_keyword=$x],[]) if test "x$restrict_keyword" != "x"; then break fi done AC_DEFINE_UNQUOTED(ERTS_RESTRICT,[$restrict_keyword],[Type qualifier restrict]) if test "x$restrict_keyword" != "x"; then AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi if test "x$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 $gcc_4_3_0_bug = yes; then AC_MSG_ERROR([This gcc miscompiles the Erlang runtime system; please use a different version]) fi fi case X$erl_xcomp_bigendian in X) ;; Xyes|Xno) ac_cv_c_bigendian=$erl_xcomp_bigendian;; *) AC_MSG_ERROR([Bad erl_xcomp_bigendian value: $erl_xcomp_bigendian]);; esac AC_C_BIGENDIAN( [ AC_DEFINE([WORDS_BIGENDIAN], [1], [Define if big-endian]) AC_DEFINE([ERTS_ENDIANNESS], [1], [Define > 0 if big-endian < 0 if little-endian, or 0 if unknown]) ], [ AC_DEFINE([ERTS_ENDIANNESS], [-1], [Define > 0 if big-endian < 0 if little-endian, or 0 if unknown]) ], [ case "$erl_xcomp_bigendian" in yes) AC_DEFINE([ERTS_ENDIANNESS], [1], [Define > 0 if big-endian < 0 if little-endian, or 0 if unknown]);; no) AC_DEFINE([ERTS_ENDIANNESS], [-1], [Define > 0 if big-endian < 0 if little-endian, or 0 if unknown]);; *) AC_DEFINE([ERTS_ENDIANNESS], [0], [Define > 0 if big-endian < 0 if little-endian, or 0 if unknown]);; esac ]) AC_C_DOUBLE_MIDDLE_ENDIAN dnl fdatasync syscall (Unix only) AC_CHECK_FUNCS([fdatasync]) dnl Find which C libraries are required to use fdatasync dnl TODO: Remove check once SunOS >= 5.11 is required by erts. dnl fdatasync requires linking against -lrt on SunOS <= 5.10. dnl OpenSolaris 2009.06 is SunOS 5.11 and does not require -lrt. AC_SEARCH_LIBS(fdatasync, [rt]) dnl sendfile syscall case $host_os in linux*|freebsd*|dragonfly*|darwin*) AC_CHECK_FUNCS([sendfile]) ;; solaris*) AC_SEARCH_LIBS(sendfilev, sendfile, AC_DEFINE([HAVE_SENDFILEV],[1], [Define to 1 if you have the `sendfilev' function.])) ;; win32) LIBS="$LIBS -lmswsock" ;; *) ;; esac 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_HEADERS(windows.h) AC_CHECK_HEADERS(winsock2.h) AC_CHECK_HEADERS(ws2tcpip.h,[],[],[ #ifdef HAVE_WINSOCK2_H #include #endif #ifdef HAVE_WINDOWS_H #include #endif ]) dnl AC_CHECK_FUNC(getaddrinfo, have_getaddrinfo=yes, have_getaddrinfo=no) AC_MSG_CHECKING(for getaddrinfo) AC_TRY_LINK([ #include #include #ifdef HAVE_WINSOCK2_H #include #endif #ifdef HAVE_WINDOWS_H #include #endif #ifdef HAVE_WS2TCPIP_H #include #endif #ifndef __WIN32__ #include #include #endif ], [ getaddrinfo("","",NULL,NULL); ],have_getaddrinfo=yes, have_getaddrinfo=no) if test $have_getaddrinfo = yes; then AC_MSG_RESULT([yes]) AC_MSG_CHECKING([whether getaddrinfo accepts enough flags]) AC_TRY_LINK([ #include #include #ifdef HAVE_WINSOCK2_H #include #endif #ifdef HAVE_WINDOWS_H #include #endif #ifdef HAVE_WS2TCPIP_H #include #endif #ifndef __WIN32__ #include #include #endif ], [ struct addrinfo hints, *ai; memset(&hints, 0, sizeof(hints)); hints.ai_flags = AI_CANONNAME; hints.ai_socktype = SOCK_STREAM; hints.ai_family = AF_INET6; if (getaddrinfo("::", NULL, &hints, &ai) == 0) { freeaddrinfo(ai); exit(0); } else { exit(1); } ],, have_getaddrinfo=no) AC_MSG_RESULT($have_getaddrinfo) case $have_getaddrinfo in yes) AC_DEFINE(HAVE_GETADDRINFO, [1], [Define to 1 if you have a good `getaddrinfo' function.]);; *) ;; esac else AC_MSG_RESULT([no]) fi AC_MSG_CHECKING(for getnameinfo) AC_TRY_LINK([ #include #include #ifdef HAVE_WINSOCK2_H #include #endif #ifdef HAVE_WINDOWS_H #include #endif #ifdef HAVE_WS2TCPIP_H #include #endif #ifndef __WIN32__ #include #include #endif ], [ getnameinfo(NULL,0,NULL,0,NULL,0,0); ],have_getnameinfo=yes, have_getnameinfo=no) if test $have_getnameinfo = yes; then AC_MSG_RESULT([yes]) AC_DEFINE(HAVE_GETNAMEINFO, [1], [Define to 1 if you have a good `getnameinfo' function.]) else AC_MSG_RESULT([no]) fi AC_CHECK_FUNCS([getipnodebyname getipnodebyaddr gethostbyname2]) AC_CHECK_FUNCS([ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlopen \ pread pwrite memmove strerror strerror_r strncasecmp \ gethrtime localtime_r gmtime_r inet_pton mprotect \ mmap mremap memcpy mallopt sbrk _sbrk __sbrk brk _brk __brk \ flockfile fstat strlcpy strlcat setsid posix2time time2posix \ setlocale nl_langinfo poll mlockall ppoll]) AC_MSG_CHECKING([for isfinite]) AC_TRY_LINK([#include ], [isfinite(0);], have_isfinite=yes, have_isfinite=no), if test $have_isfinite = yes; then AC_DEFINE(HAVE_ISFINITE,[1], [Define to 1 if you have the `isfinite' function.]) AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi case X$erl_xcomp_posix_memalign in Xno) ;; Xyes) have_posix_memalign=yes ;; *) AC_CHECK_FUNC( [posix_memalign], [if test "$cross_compiling" != yes; then AC_TRY_RUN([ #include int main(void) { void *ptr = NULL; int error; size_t alignment = 0x40000, size = 0x20028; if ((error = posix_memalign(&ptr, alignment, size)) != 0 || ptr == NULL) return error; return 0; } ],have_posix_memalign=yes ) else have_posix_memalign=yes fi]);; esac if test "$have_posix_memalign" = "yes"; then AC_DEFINE(HAVE_POSIX_MEMALIGN,[1], [Define to 1 if you have the `posix_memalign' function.]) fi dnl writev on OS X snow leopard is broken for files > 4GB case $host_os in darwin10.8.0) AC_MSG_CHECKING([for writev]) AC_MSG_RESULT(no, not stable on OS X Snow Leopard) ;; *) AC_CHECK_FUNCS([writev]) ;; esac AC_CHECK_DECLS([posix2time, time2posix],,,[#include ]) AC_FUNC_VPRINTF 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 ], [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 ], [size_t res = fwrite_unlocked(NULL,sizeof(char),0,stdout);], erts_cv_fwrite_unlocked=yes, erts_cv_fwrite_unlocked=no)) if test $erts_cv_fwrite_unlocked = yes; then AC_DEFINE(HAVE_FWRITE_UNLOCKED, 1, [Define if you have fwrite_unlocked]) fi dnl Need by run_erl. AC_CHECK_FUNCS([openpty]) AC_CHECK_HEADERS(net/if_dl.h ifaddrs.h netpacket/packet.h sys/un.h) AC_CHECK_FUNCS([getifaddrs]) dnl Checks for variables in6addr_any and in6addr_loopback, dnl dnl They normally declared by netinet/in.h, according to POSIX, dnl but not on Windows 7 (Windows SDK 7.1). I would have liked dnl to just write AC_CHECK_DECL([in6addr_any], ...) but if doing so, dnl the configure check fails erroneously on Linux with the error dnl "cannot convert to a pointer type", on a line looking like dnl "char *p = (char *) in6addr_any;", so work around that dnl with some more code. AC_CACHE_CHECK( [whether in6addr_any is declared], [erts_cv_have_in6addr_any], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #include #include #include ]], [[printf("%d", in6addr_any.s6_addr[16]);]] )], [erts_cv_have_in6addr_any=yes], [erts_cv_have_in6addr_any=no] )] ) case "$erts_cv_have_in6addr_any" in yes) AC_DEFINE([HAVE_IN6ADDR_ANY], [1], [Define to 1 if you have the variable in6addr_any declared.]) esac AC_CACHE_CHECK( [whether in6addr_loopback is declared], [erts_cv_have_in6addr_loopback], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #include #include #include ]], [[printf("%d", in6addr_loopback.s6_addr[16]);]] )], [erts_cv_have_in6addr_loopback=yes], [erts_cv_have_in6addr_loopback=no] )] ) case "$erts_cv_have_in6addr_loopback" in yes) AC_DEFINE([HAVE_IN6ADDR_LOOPBACK], [1], [Define to 1 if you have the variable in6addr_loopback declared.]) esac AC_CHECK_DECLS([IN6ADDR_ANY_INIT, IN6ADDR_LOOPBACK_INIT, IPV6_V6ONLY], [], [], [ #include #include #include ]) dnl ---------------------------------------------------------------------- dnl Checks for features/quirks in the system that affects Erlang. dnl ---------------------------------------------------------------------- AC_MSG_CHECKING([for sched_getaffinity/sched_setaffinity]) AC_TRY_LINK([#include ], [ #ifndef CPU_SETSIZE #error no CPU_SETSIZE #endif int res; cpu_set_t cpuset; CPU_ZERO(&cpuset); CPU_SET(1, &cpuset); res = sched_setaffinity(0, sizeof(cpu_set_t), &cpuset); res = sched_getaffinity(0, sizeof(cpu_set_t), &cpuset); res = CPU_ISSET(1, &cpuset); CPU_CLR(1, &cpuset); ], sched_xetaffinity=yes, sched_xetaffinity=no) AC_MSG_RESULT([$sched_xetaffinity]) if test $sched_xetaffinity = yes; then AC_DEFINE(HAVE_SCHED_xETAFFINITY, 1, [Define if you have sched_getaffinity/sched_setaffinity]) fi AC_MSG_CHECKING([for pset functionality]) AC_TRY_LINK([#include ], [ int res; psetid_t id = PS_MYID; int type = PS_PRIVATE; uint_t numcpus = 1024; processorid_t cpulist[1024]; res = pset_info(id, &type, &numcpus, &cpulist[0]); ], pset_functionality=yes, pset_functionality=no) AC_MSG_RESULT([$pset_functionality]) if test $pset_functionality = yes; then AC_DEFINE(HAVE_PSET, 1, [Define if you have pset functionality]) fi AC_MSG_CHECKING([for processor_bind functionality]) AC_TRY_LINK([ #include #include #include ], [ int res = processor_bind(P_LWPID, P_MYID, PBIND_NONE, NULL); ], processor_bind_functionality=yes, processor_bind_functionality=no) AC_MSG_RESULT([$processor_bind_functionality]) if test $processor_bind_functionality = yes; then AC_DEFINE(HAVE_PROCESSOR_BIND, 1, [Define if you have processor_bind functionality]) fi AC_MSG_CHECKING([for cpuset_getaffinity/cpuset_setaffinity]) AC_TRY_LINK([ #include #include ], [ int res; cpuset_t cpuset; CPU_ZERO(&cpuset); CPU_SET(1, &cpuset); res = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset_t), &cpuset); res = cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset_t), &cpuset); res = CPU_ISSET(1, &cpuset); CPU_CLR(1, &cpuset); ], cpuset_xetaffinity=yes, cpuset_xetaffinity=no) AC_MSG_RESULT([$cpuset_xetaffinity]) if test $cpuset_xetaffinity = yes; then AC_DEFINE(HAVE_CPUSET_xETAFFINITY, 1, [Define if you have cpuset_getaffinity/cpuset_setaffinity]) 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 #ifdef HAVE_MALLOC_H # include #endif #if defined(HAVE_END_SYMBOL) extern char end; #elif defined(HAVE__END_SYMBOL) extern char _end; #endif #ifdef ETHR_PTHREADS # ifdef ETHR_HAVE_PTHREAD_H # include # else # ifdef ETHR_HAVE_MIT_PTHREAD_H # include # 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, [ case X$erl_xcomp_after_morecore_hook in X) erts_cv___after_morecore_hook_can_track_malloc=cross;; Xyes|Xno) erts_cv___after_morecore_hook_can_track_malloc=$erl_xcomp_after_morecore_hook;; *) AC_MSG_ERROR([Bad erl_xcomp_after_morecore_hook value: $erl_xcomp_after_morecore_hook]);; esac ] )]) case $erts_cv___after_morecore_hook_can_track_malloc in yes) AC_DEFINE(ERTS___AFTER_MORECORE_HOOK_CAN_TRACK_MALLOC, 1, \ [Define if __after_morecore_hook can track malloc()s core memory use.]);; cross) AC_MSG_WARN([result no guessed because of cross compilation]);; *) ;; esac if test "x$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_LINK([#include #include ], [$rtype sbrk($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 < #include ], [$rtype brk($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 < #include #include #ifdef HAVE_DLFCN_H # include #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 #ifdef ETHR_PTHREADS # ifdef ETHR_HAVE_PTHREAD_H # include # else # ifdef ETHR_HAVE_MIT_PTHREAD_H # include # 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, [ case X$erl_xcomp_dlsym_brk_wrappers in X) erts_cv_brk_wrappers_can_track_malloc=cross;; Xyes|Xno) erts_cv_brk_wrappers_can_track_malloc=$erl_xcomp_dlsym_brk_wrappers;; *) AC_MSG_ERROR([Bad erl_xcomp_dlsym_brk_wrappers value: $erl_xcomp_dlsym_brk_wrappers]);; esac ])]) case $erts_cv_brk_wrappers_can_track_malloc in yes) AC_DEFINE(ERTS_BRK_WRAPPERS_CAN_TRACK_MALLOC, 1, \ [Define if sbrk()/brk() wrappers can track malloc()s core memory use]);; cross) AC_MSG_WARN([result no guessed because of cross compilation]);; *) ;; esac fi dnl Restore LIBS LIBS=$saved_libs dnl restore CPPFLAGS CPPFLAGS=$saved_cppflags case $ARCH in x86|amd64) AC_DEFINE(ERTS_STRUCTURE_ALIGNED_ALLOC, 1, [Define if structure alignment is enough for allocators. If not defined, 64-bit alignment will be forced.]);; *) ;; esac LM_SYS_IPV6 LM_SYS_MULTICAST ERL_TIME_CORRECTION AC_CHECK_PROG(M4, m4, m4) if test X${enable_hipe} != Xno; then dnl HiPE cannot run without mprotect() if test X$ac_cv_func_mprotect != Xyes; then if test X${enable_hipe} = Xyes; then AC_MSG_ERROR([HiPE needs mprotect() on $ARCH]) else enable_hipe=no AC_MSG_WARN([Disable HiPE due to lack of mprotect()]) fi fi fi dnl check to auto-enable hipe here... if test "$cross_compiling" != "yes" && 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|x86-darwin*|amd64-darwin*|ppc-linux|ppc64-linux|ppc-darwin|arm-linux|amd64-freebsd|x86-freebsd|x86-sol2|amd64-sol2|ultrasparc-linux) enable_hipe=yes ;; esac fi fi if test X${enable_hipe} = Xyes; then case $OPSYS in linux) ppcBEAMLDFLAGS="-Wl,-m,elf32ppc" ppc64BEAMLDFLAGS="-Wl,-m,elf64ppc,-T,hipe/elf64ppc.x" ;; darwin) amd64BEAMLDFLAGS="-pagezero_size 0x10000000" ;; esac archVarName="${ARCH}BEAMLDFLAGS" eval HIPEBEAMLDFLAGS=\$$archVarName fi AC_SUBST(HIPEBEAMLDFLAGS) dnl Permanently disable floating point exceptions. dnl On x86/amd64, floating points exceptions have dnl unresolved stability issues. AC_MSG_CHECKING([for unreliable floating point exceptions]) FPE=unreliable AC_SUBST(FPE) AC_MSG_RESULT([unreliable]) AC_DEFINE(NO_FPE_SIGNALS,[],[Define if floating points exceptions are non-existing/not reliable]) 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 $host_os in bsdi*) AC_DEFINE(REDEFINE_FD_SETSIZE,[],[Define if you wish to redefine FD_SETSIZE to be able to select on more fd]) AC_MSG_RESULT(yes) ;; *) AC_MSG_RESULT(no) ;; esac dnl ---------------------------------------------------------------------- dnl Tests related to configurable options given on command line dnl (using the --disable, --enable and --with switches). dnl ---------------------------------------------------------------------- # # Check if we should enable HiPE. # HIPE_ENABLED= HIPE_HELPERS= dnl if not disabled, autoenable HiPE on known supported platforms dnl done up where floating point is checked, need to descide there already... if test X${enable_hipe} = Xyes; then if test X$ac_cv_sizeof_void_p != X4 -a X$ARCH != Xamd64 -a X$ARCH != Xppc64; then AC_MSG_WARN([HiPE is not supported in 64-bit builds]) else HIPE_ENABLED=yes AC_DEFINE(HIPE,[1],[Define to enable HiPE]) HIPE_HELPERS="xmerl syntax_tools edoc" ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS hipe" AC_MSG_NOTICE([Enable exec_alloc for hipe code allocation]) ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS exec_alloc" fi fi AC_SUBST(HIPE_HELPERS) AC_SUBST(HIPE_ENABLED) # # Check if Erlang libraries should be compiled to native code. # NATIVE_LIBS_ENABLED= if test X${enable_native_libs} = Xyes -a X${HIPE_ENABLED} = Xyes; then NATIVE_LIBS_ENABLED=yes cat >> $ERL_TOP/erts/CONF_INFO < main() { #ifdef _POLL_EMUL_H_ exit(1); /* Implemented using select() -- fail */ #else struct pollfd fds[1]; int fd; fd = open("/dev/null", 1); fds[0].fd = fd; fds[0].events = POLLIN; fds[0].revents = 0; if (poll(fds, 1, 0) < 0 || (fds[0].revents & POLLNVAL) != 0) { exit(1); /* Does not work for devices -- fail */ } exit(0); #endif } ], poll_works=yes, poll_works=no, [ case X$erl_xcomp_poll in X) poll_works=cross;; Xyes|Xno) poll_works=$erl_xcomp_poll;; *) AC_MSG_ERROR([Bad erl_xcomp_poll value: $erl_xcomp_poll]);; esac ]) fi case $poll_works-$host_os in no-*|cross-darwin*) # # The USE_SELECT define is used by the ssl application (should not # be used by erts). # AC_DEFINE(USE_SELECT, 1, [Define if select() should be used instead of poll()]) if test $poll_works = cross; then AC_MSG_RESULT(cross) AC_MSG_WARN([result no guessed based on OS ($host_os) because of cross compilation]) else AC_MSG_RESULT([no; non-existing, broken, or based on select()]) fi poll_works=no;; yes-*|cross-*) AC_DEFINE(ERTS_USE_POLL, 1, [Define if poll() should be used instead of select()]) if test $poll_works = cross; then AC_MSG_RESULT(cross) AC_MSG_WARN([result yes guessed based on OS ($host_os) because of cross compilation]) else AC_MSG_RESULT(yes) fi poll_works=yes;; esac # # If kqueue() found # if test $have_kernel_poll = kqueue; then ## Some OS X kernel version seems to have bugs in them with regards to kqueue ## Disable kernel poll on those versions AC_MSG_CHECKING([whether host os has known kqueue bugs]) case $host_os in # Any OS X version < 16 has known problems with using kqueue # so we don't use it there. See erl_poll.c for details. darwin[[0-9]].*|darwin1[[0-5]].*) AC_MSG_RESULT([yes, disabling kernel poll]) have_kernel_poll=no ;; *) AC_MSG_RESULT([no]) ;; esac fi # # If epoll() found, check that it is level triggered. # if test $have_kernel_poll = epoll; then AC_MSG_CHECKING([whether epoll is level triggered]) AC_TRY_LINK([#include ],[ #ifdef EPOLLET /* Edge triggered option exist, assume level triggered is default */ ; #else /* No edge triggered option exist; assume edge triggered only */ #error No EPOLLET #endif ], level_triggered_epoll=yes, [level_triggered_epoll=no have_kernel_poll=no]) AC_MSG_RESULT([$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 ERTS_BUILD_FALLBACK_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 header file.]) ERTS_BUILD_FALLBACK_POLL=yes ;; /dev/poll) AC_DEFINE(HAVE_SYS_DEVPOLL_H, 1, [Define if you have header file.]) ;; kqueue) AC_DEFINE(HAVE_SYS_EVENT_H, 1, [Define if you have header file.]) ERTS_BUILD_FALLBACK_POLL=yes ;; *) 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; $have_kernel_poll]);; esac AC_SUBST(ERTS_BUILD_FALLBACK_POLL) AC_MSG_CHECKING([whether putenv() stores a copy of the key-value pair]) AC_TRY_RUN([ #include int main(void) { int i; char *env; char buf[10]; for (i = 0; i < 7; i++) buf[i] = 'X'; buf[i] = '\0'; buf[3] = '='; if (putenv(buf) != 0) return 1; for (i = 4; i < 7; i++) buf[i] = 'Y'; env = getenv("XXX"); if (!env) return 2; for (i = 0; i < 3; i++) if (env[i] != 'X') return 3; for (i = 0; i < 3; i++) buf[i] = 'Y'; env = getenv("XXX"); if (!env) return 4; for (i = 0; i < 3; i++) if (env[i] != 'X') return 5; return 0; } ], copying_putenv=yes, copying_putenv=no, [ case X$erl_xcomp_putenv_copy in X) copying_putenv=cross;; Xyes|Xno) copying_putenv=$erl_xcomp_putenv_copy;; *) AC_MSG_ERROR([Bad erl_xcomp_putenv_copy value: $erl_xcomp_putenv_copy]);; esac ]) AC_MSG_RESULT($copying_putenv) case $copying_putenv in yes) AC_DEFINE(HAVE_COPYING_PUTENV,[1],\ [Define if you have a putenv() that stores a copy of the key-value pair]);; cross) AC_MSG_WARN([result no guessed because of cross compilation]);; *) ;; esac dnl ---------------------------------------------------------------------- dnl Stuff that should be moved into their respective application dnl ---------------------------------------------------------------------- dnl dnl We should look for a compiler that handles jump tables, for beam_emu dnl to be optimized dnl LM_FIND_EMU_CC dnl dnl Test whether code pointers are always short (32 bits). dnl AC_MSG_CHECKING([whether the code model is small]) saved_LDFLAGS="$LDFLAGS" LDFLAGS="$LDFLAGS $HIPEBEAMLDFLAGS" AC_TRY_RUN([ #include int main() { if ((unsigned long long)&main < (1ull << 32)) { exit(0); } exit(1); } ], erl_code_model_small=yes, erl_code_model_small=no, [case X$erl_xcomp_code_model_small in X) erl_code_model_small=no;; Xyes|Xno) erl_code_model_small=$erl_xcomp_code_model_small;; *) AC_MSG_ERROR([Bad erl_xcomp_code_model_small value: $erl_xcomp_code_model_small]);; esac]) AC_MSG_RESULT([$erl_code_model_small]) LDFLAGS="$saved_LDFLAGS" case $erl_code_model_small in yes) AC_DEFINE(CODE_MODEL_SMALL,[1], [Define if the code model is small (code fits below 2Gb)]) CODE_MODEL=small ;; no) CODE_MODEL=unknown ;; esac AC_SUBST(CODE_MODEL) dnl dnl DTrace & LTTNG dnl case $DYNAMIC_TRACE_FRAMEWORK in dtrace|systemtap) AC_CHECK_TOOL(DTRACE, dtrace, none) test "$DTRACE" = "none" && AC_MSG_ERROR([No dtrace utility found.]); enable_lttng_test=no enable_dtrace_test=yes;; lttng) enable_lttng_test=yes enable_dtrace_test=no;; *) enable_lttng_test=no enable_dtrace_test=no;; esac AC_SUBST(DTRACE) AC_SUBST(DTRACE_CPP) AC_SUBST(DTRACE_ENABLED) AC_SUBST(DTRACE_ENABLED_2STEP) DTRACE_CPP=-C DTRACE_ENABLED= DTRACE_ENABLED_2STEP= DTRACE_2STEP_TEST=./dtrace-test.o DTRACE_BITS_FLAG= case $OPSYS in freebsd) if test "$BITS64" = "yes" ; then DTRACE_BITS_FLAG=-64 else DTRACE_BITS_FLAG=-32 fi ;; *) : # Nothing to do ;; esac if test "$enable_dtrace_test" = "yes" ; then if test "$DTRACE" = "dtrace" ; then AC_CHECK_HEADERS(sys/sdt.h) AC_MSG_CHECKING([for 1-stage DTrace precompilation]) # The OS X version of dtrace prints a spurious line here. if ! dtrace -h $DTRACE_CPP -Iemulator/beam -o ./foo-dtrace.h -s emulator/beam/erlang_dtrace.d; then AC_MSG_ERROR([Could not precompile erlang_dtrace.d: dtrace -h failed]) fi AC_MSG_RESULT([yes]) AC_MSG_CHECKING([for 2-stage DTrace precompilation]) AC_TRY_COMPILE([ #include "foo-dtrace.h" ], [ERLANG_DIST_PORT_BUSY_ENABLED();], [rm -f $DTRACE_2STEP_TEST dtrace -G $DTRACE_CPP $DTRACE_BITS_FLAG -Iemulator/beam -o $DTRACE_2STEP_TEST -s emulator/beam/erlang_dtrace.d conftest.$OBJEXT 2>&AS_MESSAGE_LOG_FD if test -f $DTRACE_2STEP_TEST; then rm -f $DTRACE_2STEP_TEST DTRACE_ENABLED_2STEP=yes fi], []) rm -f foo-dtrace.h AS_IF([test "x$DTRACE_ENABLED_2STEP" = "xyes"], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no])]) DTRACE_ENABLED=yes case $OPSYS in linux) : # No extra libs to add to LIBS ;; freebsd) LIBS="$LIBS -lelf" ;; *) LIBS="$LIBS -ldtrace" ;; esac else AC_MSG_ERROR([Dtrace preprocessing test failed.]) fi fi if test "$enable_lttng_test" = "yes" ; then AC_CHECK_HEADERS(lttng/tracepoint.h) AC_CHECK_HEADERS(lttng/tracepoint-event.h) dnl The macro tracepoint_enabled is not present in older lttng versions dnl checking for tracepoint_enabled AC_MSG_CHECKING([for tracepoint_enabled in lttng/tracepoint.h]) AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [#include #define TRACEPOINT_PROVIDER org_erlang_otp TRACEPOINT_EVENT( org_erlang_otp, dummy, TP_ARGS(int, my_int), TP_FIELDS(ctf_integer(int, my_int, my_int))) #define TRACEPOINT_CREATE_PROBES #define TRACEPOINT_DEFINE], [if(tracepoint_enabled(org_erlang_otp,dummy)) do {} while(0)])], [AC_MSG_RESULT([yes])], [AC_MSG_ERROR([no (available in lttng-ust v2.7)])]) if test "x$ac_cv_header_lttng_tracepoint_h" = "xyes" \ -a "x$ac_cv_header_lttng_tracepoint_event_h" = "xyes"; then # No straight forward way to test for liblttng-ust when no public symbol exists, # just add the lib. LIBS="$LIBS -llttng-ust -ldl" else AC_MSG_ERROR([No LTTng support found.]) fi fi #-------------------------------------------------------------------- # Os mon stuff. #-------------------------------------------------------------------- AC_SUBST(os_mon_programs) AC_SUBST(CPU_SUP_LIBS) AC_CHECK_LIB(kstat, kstat_open, [ use_cpu_sup=yes CPU_SUP_LIBS="$CPU_SUP_LIBS -lkstat" ]) AC_CHECK_LIB(kvm, kvm_open, [ use_cpu_sup=yes CPU_SUP_LIBS="$CPU_SUP_LIBS -lkvm" ]) case $host_os in solaris2*) os_mon_programs="$os_mon_programs ferrule mod_syslog" ;; darwin*) use_cpu_sup=yes ;; openbsd*) use_cpu_sup=yes ;; linux*) use_cpu_sup=yes ;; freebsd*) use_cpu_sup=yes ;; esac if test "$use_cpu_sup" = "yes"; then os_mon_programs="$os_mon_programs cpu_sup" fi AC_ARG_WITH(javac, AS_HELP_STRING([--with-javac=JAVAC], [specify Java compiler to use]) AS_HELP_STRING([--with-javac], [use a Java compiler if found (default)]) AS_HELP_STRING([--without-javac], [don't use any Java compiler])) 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 rm -f $ERL_TOP/lib/$a/SKIP done if test "X$with_javac" = "Xno"; then for a in $need_java ; do echo "Java compiler disabled by user" > $ERL_TOP/lib/$a/SKIP done else # begin - try to find javac if test "X$with_javac" != "Xyes" -a "X$with_javac" != "X"; then check_javac=$with_javac else check_javac="javac.sh javac guavac gcj jikes bock" fi AC_CHECK_PROGS(JAVAC, $check_javac) if test -n "$JAVAC"; then dnl Make sure it's at least JDK 1.6 AC_CACHE_CHECK(for JDK version 1.6, ac_cv_prog_javac_ver_1_6, [ERL_TRY_LINK_JAVA([], [for (String i : args);], ac_cv_prog_javac_ver_1_6=yes, ac_cv_prog_javac_ver_1_6=no)]) if test $ac_cv_prog_javac_ver_1_6 = no; then unset -v JAVAC fi fi if test -z "$JAVAC"; then if test "X$with_javac" != "X"; then AC_MSG_ERROR([No java compiler found in PATH (checked for $check_javac)]) fi 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 fi # end - try to find javac dnl dnl Orber has a c++ example, this isn't the right way to check for dnl it, but.... dnl AC_SUBST(CXXFLAGS) dnl this deliberately does not believe that 'gcc' is a C++ compiler AC_CHECK_TOOLS(CXX, [$CCC c++ g++ CC cxx cc++ cl], false) # Remove SKIP file from previous run 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 $WERRORFLAGS $WFLAGS", [The only reason ERTS_EMU_CMDLINE_FLAGS exists is to force modification of config.h when the emulator command line flags are modified by configure]) AC_SUBST(STATIC_CFLAGS) dnl ---------------------------------------------------------------------- dnl Directories needed for the build dnl ---------------------------------------------------------------------- erts=${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 $d fi done dnl --------------------------------------------------------------------- dnl Autoheader macro for adding code at top and bottom of config.h.in dnl --------------------------------------------------------------------- AH_TOP([ #define GHBN_R_SOLARIS 2 #define GHBN_R_AIX 3 #define GHBN_R_GLIBC 4 ]) AH_BOTTOM([ /* Redefine in6_addr. XXX this should be moved to the files where it's used? */ #ifdef HAVE_IN_ADDR6_STRUCT #define in6_addr in_addr6 #endif /* Define a reasonable default for INADDR_LOOPBACK */ /* XXX this should be moved to the files where it's used? */ #ifdef HAVE_NO_INADDR_LOOPBACK #define INADDR_LOOPBACK (u_long)0x7F000001 #endif #ifdef REDEFINE_FD_SETSIZE #define FD_SETSIZE 1024 #endif #ifdef HAVE_GETHRVTIME_PROCFS_IOCTL #define HAVE_GETHRVTIME #endif #if !defined(HAVE_ISFINITE) && !defined(HAVE_FINITE) # if defined(HAVE_ISINF) && defined(HAVE_ISNAN) # define USE_ISINF_ISNAN # endif #endif #if defined(DEBUG) && !defined(ERTS_ENABLE_LOCK_CHECK) #define ERTS_ENABLE_LOCK_CHECK 1 #endif ]) if test "x$GCC" = xyes; then CFLAGS="$WERRORFLAGS $CFLAGS" fi dnl ---------------------------------------------------------------------- dnl Enable -fsanitize= flags. dnl ---------------------------------------------------------------------- m4_define(DEFAULT_SANITIZERS, [address,undefined]) AC_ARG_ENABLE( sanitizers, AS_HELP_STRING( [--enable-sanitizers@<:@=comma-separated list of sanitizers@:>@], [Default=DEFAULT_SANITIZERS]), [ case "$enableval" in no) sanitizers= ;; yes) sanitizers="-fsanitize=DEFAULT_SANITIZERS" ;; *) sanitizers="-fsanitize=$enableval" ;; esac CFLAGS="$CFLAGS $sanitizers" LDFLAGS="$LDFLAGS $sanitizers" ]) dnl ---------------------------------------------------------------------- dnl Check for log2 dnl ---------------------------------------------------------------------- AC_CHECK_FUNCS([log2]) dnl ---------------------------------------------------------------------- dnl Output the result. dnl ---------------------------------------------------------------------- dnl Note that the output files are relative to $srcdir AC_CONFIG_FILES([ emulator/$host/Makefile:emulator/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/$host/Makefile:lib_src/Makefile.in ../make/$host/otp.mk:../make/otp.mk.in ]) AC_CONFIG_FILES([../make/make_emakefile:../make/make_emakefile.in], [chmod +x ../make/make_emakefile]) dnl dnl The ones below should be moved to their respective lib dnl AC_CONFIG_FILES([ ../lib/os_mon/c_src/$host/Makefile:../lib/os_mon/c_src/Makefile.in ../lib/runtime_tools/c_src/$host/Makefile:../lib/runtime_tools/c_src/Makefile.in ../lib/tools/c_src/$host/Makefile:../lib/tools/c_src/Makefile.in ]) AC_CONFIG_FILES([../make/install_dir_data.sh:../make/install_dir_data.sh.in], [chmod +x ../make/install_dir_data.sh]) AC_OUTPUT