dnl Process this file with autoconf to produce a configure script for Erlang. dnl dnl %CopyrightBegin% dnl dnl Copyright Ericsson AB 1997-2016. 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 AC_INIT(conf_vars.in) AC_CANONICAL_HOST dnl Checks for programs. AC_PROG_CC DEBUG_FLAGS="-g -DDEBUG" if test "$GCC" = yes; then DEBUG_FLAGS="$DEBUG_FLAGS -Wall $CFLAGS" fi AC_SUBST(DEBUG_FLAGS) AC_ARG_ENABLE(debug-mode, [ --enable-debug-mode enable debug mode], [ case "$enableval" in no) ;; *) CFLAGS=$DEBUG_FLAGS ;; esac ], ) AC_ARG_ENABLE(m64-build, AS_HELP_STRING([--enable-m64-build], [build 64-bit binaries using the -m64 flag to (g)cc]), [ case "$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 32-bit binaries using the -m32 flag to (g)cc]), [ case "$enableval" in no) enable_m32_build=no ;; *) enable_m32_build=yes ;; esac ],enable_m32_build=no) no_mXX_LDFLAGS="$LDFLAGS" if test X${enable_m64_build} = Xyes; then CFLAGS="-m64 $CFLAGS" LDFLAGS="-m64 $LDFLAGS" fi if test X${enable_m32_build} = Xyes; then CFLAGS="-m32 $CFLAGS" LDFLAGS="-m32 $LDFLAGS" fi AC_CHECK_LIB(m, sin) #-------------------------------------------------------------------- # Interactive UNIX requires -linet instead of -lsocket, plus it # needs net/errno.h to define the socket-related error codes. #-------------------------------------------------------------------- AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"]) AC_CHECK_HEADER(net/errno.h, AC_DEFINE(HAVE_NET_ERRNO_H)) #-------------------------------------------------------------------- # Linux/tcp.h may be needed for sockopt test in kernel #-------------------------------------------------------------------- AC_CHECK_HEADER(linux/tcp.h, AC_DEFINE(HAVE_LINUX_TCP_H)) AC_MSG_CHECKING(for sane linux/tcp.h) AC_TRY_COMPILE([#include #include #include #include #include #include #include #include #include #include #include ], [return 0;], have_sane_linux_tcp_h=yes, have_sane_linux_tcp_h=no) if test $have_sane_linux_tcp_h = yes; then AC_DEFINE(HAVE_SANE_LINUX_TCP_H,[1], [Define if we have sane linux/tcp.h]) AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi #-------------------------------------------------------------------- # Linux requires sys/socketio.h instead of sys/sockio.h #-------------------------------------------------------------------- AC_CHECK_HEADER(sys/socketio.h, AC_DEFINE(HAVE_SOCKETIO_H)) #-------------------------------------------------------------------- # Misc #-------------------------------------------------------------------- AC_CHECK_HEADER(poll.h, AC_DEFINE(HAVE_POLL_H)) #-------------------------------------------------------------------- # The statements below define a collection of symbols related to # dynamic loading and shared libraries: # # SHLIB_CFLAGS - Flags to pass to cc when compiling the components # of a shared library (may request position-independent # code, among other things). # SHLIB_LD - Base command to use for combining object files # into a shared library. # SHLIB_SUFFIX - Suffix to use for the names of dynamically loadable # extensions. An empty string means we don't know how # to use shared libraries on this platform. #-------------------------------------------------------------------- # Step 1: set the variable "system" to hold the name and version number # for the system. AC_MSG_CHECKING([system version (for dynamic loading)]) system=`./config.sub $host` AC_MSG_RESULT($system) # Step 2: check for existence of -ldl library. This is needed because # Linux can use either -ldl or -ldld for dynamic loading. AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no) # Step 3: set configuration options based on system name and version. SHLIB_LDLIBS= fullSrcDir=`cd $srcdir; pwd` case $system in *-linux-*) SHLIB_CFLAGS="-fPIC" SHLIB_SUFFIX=".so" if test "$have_dl" = yes; then SHLIB_LD="${CC}" SHLIB_LDFLAGS="$LDFLAGS -shared" LD_FLAGS="-rdynamic" else AC_CHECK_HEADER(dld.h, [ SHLIB_LD="ld" SHLIB_LDFLAGS="-shared"]) if test X${enable_m64_build} = Xyes; then AC_MSG_ERROR(don't know how to link 64-bit dynamic drivers) fi if test X${enable_m32_build} = Xyes; then AC_MSG_ERROR(don't know how to link 32-bit dynamic drivers) fi fi SHLIB_EXTRACT_ALL="" ;; *-openbsd*) # Not available on all versions: check for include file. AC_CHECK_HEADER(dlfcn.h, [ SHLIB_CFLAGS="-fpic" SHLIB_LD="${CC}" SHLIB_LDFLAGS="$LDFLAGS -shared" SHLIB_SUFFIX=".so" if test X${enable_m64_build} = Xyes; then AC_MSG_ERROR(don't know how to link 64-bit dynamic drivers) fi if test X${enable_m32_build} = Xyes; then AC_MSG_ERROR(don't know how to link 32-bit dynamic drivers) fi ], [ # No dynamic loading. SHLIB_CFLAGS="" SHLIB_LD="ld" SHLIB_LDFLAGS="" SHLIB_SUFFIX="" AC_MSG_ERROR(don't know how to compile and link dynamic drivers) ]) SHLIB_EXTRACT_ALL="" ;; *-netbsd*|*-freebsd*|*-dragonfly*) # Not available on all versions: check for include file. AC_CHECK_HEADER(dlfcn.h, [ SHLIB_CFLAGS="-fpic" SHLIB_LD="ld" SHLIB_LDFLAGS="$LDFLAGS -Bshareable -x" SHLIB_SUFFIX=".so" if test X${enable_m64_build} = Xyes; then AC_MSG_ERROR(don't know how to link 64-bit dynamic drivers) fi if test X${enable_m32_build} = Xyes; then AC_MSG_ERROR(don't know how to link 32-bit dynamic drivers) fi ], [ # No dynamic loading. SHLIB_CFLAGS="" SHLIB_LD="ld" SHLIB_LDFLAGS="" SHLIB_SUFFIX="" AC_MSG_ERROR(don't know how to compile and link dynamic drivers) ]) SHLIB_EXTRACT_ALL="" ;; *-solaris2*|*-sysv4*) SHLIB_CFLAGS="-KPIC" SHLIB_LD="/usr/ccs/bin/ld" SHLIB_LDFLAGS="$no_mXX_LDFLAGS -G -z text" if test X${enable_m64_build} = Xyes; then SHLIB_LDFLAGS="-64 $SHLIB_LDFLAGS" fi if test X${enable_m32_build} = Xyes; then AC_MSG_ERROR(don't know how to link 32-bit dynamic drivers) fi SHLIB_SUFFIX=".so" SHLIB_EXTRACT_ALL="-z allextract" ;; *darwin*) SHLIB_CFLAGS="-fno-common" SHLIB_LD="cc" SHLIB_LDFLAGS="$LDFLAGS -bundle -flat_namespace -undefined suppress" SHLIB_SUFFIX=".so" SHLIB_EXTRACT_ALL="" ;; *osf1*) SHLIB_CFLAGS="-fPIC" SHLIB_LD="ld" SHLIB_LDFLAGS="$LDFLAGS -shared" if test X${enable_m64_build} = Xyes; then AC_MSG_ERROR(don't know how to link 64-bit dynamic drivers) fi if test X${enable_m32_build} = Xyes; then AC_MSG_ERROR(don't know how to link 32-bit dynamic drivers) fi SHLIB_SUFFIX=".so" SHLIB_EXTRACT_ALL="" ;; *osf5*) SHLIB_CFLAGS="-fPIC" SHLIB_LD="${CC} -shared" SHLIB_LDFLAGS="$LDFLAGS" SHLIB_SUFFIX=".so" SHLIB_EXTRACT_ALL="" ;; *) # No dynamic loading. SHLIB_CFLAGS="" SHLIB_LD="ld" SHLIB_LDFLAGS="" SHLIB_LDLIBS="" SHLIB_SUFFIX="" SHLIB_EXTRACT_ALL="" AC_MSG_ERROR(don't know how to compile and link dynamic drivers) ;; esac # If we're running gcc, then change the C flags for compiling shared # libraries to the right flags for gcc, instead of those for the # standard manufacturer compiler. if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then case $system in *-aix) ;; *-bsd*) ;; *-irix) ;; *-netbsd|*-freebsd|*-openbsd) ;; *-riscos) ;; *ultrix4.*) ;; *darwin*) ;; *) SHLIB_CFLAGS="-fPIC" ;; esac fi # Make it possible for erl_interface to use it's own compiler options EI_CFLAGS="$CFLAGS" # Add thread-safety flags if requested AC_ARG_ENABLE(shlib-thread-safety, [ --enable-shlib-thread-safety enable thread safety for build shared libraries], [ case "$enableval" in no) ;; *) SHLIB_CFLAGS="$SHLIB_CFLAGS -D_THREAD_SAFE -D_REENTRANT" CFLAGS="$CFLAGS -D_THREAD_SAFE -D_REENTRANT" ;; esac ], ) SHLIB_CFLAGS="$SHLIB_CFLAGS $CFLAGS" AC_SUBST(CFLAGS) AC_SUBST(SHLIB_LD) AC_SUBST(SHLIB_LDFLAGS) AC_SUBST(SHLIB_LDLIBS) AC_SUBST(SHLIB_CFLAGS) AC_SUBST(SHLIB_SUFFIX) AC_SUBST(SHLIB_EXTRACT_ALL) AC_SUBST(EI_CFLAGS) #-------------------------------------------------------------------- # Check for the existence of the -lsocket and -lnsl libraries. # The order here is important, so that they end up in the right # order in the command line generated by make. Here are some # special considerations: # 1. Use "connect" and "accept" to check for -lsocket, and # "gethostbyname" to check for -lnsl. # 2. Use each function name only once: can't redo a check because # autoconf caches the results of the last check and won't redo it. # 3. Use -lnsl and -lsocket only if they supply procedures that # aren't already present in the normal libraries. This is because # IRIX 5.2 has libraries, but they aren't needed and they're # bogus: they goof up name resolution if used. # 4. On some SVR4 systems, can't use -lsocket without -lnsl too. # To get around this problem, check for both libraries together # if -lsocket doesn't work by itself. #-------------------------------------------------------------------- erl_checkBoth=0 AC_CHECK_FUNC(connect, erl_checkSocket=0, erl_checkSocket=1) if test "$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"])) dnl Checks for library functions. AC_CHECK_FUNCS(strerror) AC_CHECK_FUNCS(vsnprintf) AC_CHECK_FUNCS(usleep) # First check if the library is available, then if we can choose between # two versions of gethostbyname AC_HAVE_LIBRARY(resolv) AC_CHECK_LIB(resolv, res_gethostbyname,[AC_DEFINE(HAVE_RES_GETHOSTBYNAME,1)]) #-------------------------------------------------------------------- # Check for isfinite #-------------------------------------------------------------------- AC_MSG_CHECKING([for isfinite]) AC_TRY_LINK([#include ], [isfinite(0);], have_isfinite=yes, have_isfinite=no) if test $have_isfinite = yes; then AC_DEFINE(HAVE_ISFINITE,1) AC_MSG_RESULT(yes) else AC_DEFINE(HAVE_FINITE,1) AC_MSG_RESULT(no) fi #-------------------------------------------------------------------- # Emulator compatible flags (for drivers) #-------------------------------------------------------------------- ERTS_CFLAGS=$CFLAGS AC_SUBST(ERTS_CFLAGS) ERTS_LIBS=$LIBS AC_SUBST(ERTS_LIBS) #-------------------------------------------------------------------- # Special compiler macro to handle cross compiling # (HCC) is used to compile tools run in the HOST environment #-------------------------------------------------------------------- HCC='$(CC)' AC_SUBST(HCC) #-------------------------------------------------------------------- # ld is used for linking on vxworks #-------------------------------------------------------------------- LD='$(CC) $(CFLAGS)' AC_SUBST(LD) #-------------------------------------------------------------------- # object file suffix #-------------------------------------------------------------------- obj='.o' AC_SUBST(obj) #-------------------------------------------------------------------- # executable file suffix #-------------------------------------------------------------------- exe='' AC_SUBST(exe) #-------------------------------------------------------------------- # flags when linking for cross platform targets (yet 'tis useful with # native builds) #-------------------------------------------------------------------- CROSSLDFLAGS='' AC_SUBST(CROSSLDFLAGS) dnl dnl SSL and CRYPTO needs the library openSSL/ssleay dnl dnl Check flags --with-ssl, --without-ssl --with-ssl=PATH. dnl If no option is given or --with-ssl is set without a path then we dnl search for SSL libraries and header files in the standard locations. dnl If set to --without-ssl we disable the use of SSL dnl If set to --with-ssl=PATH we use that path as the prefix, i.e. we dnl use "PATH/include" and "PATH/lib". AC_SUBST(SSLEAY_ROOT) TARGET=$host # We search for SSL. First in the OTP team ClearCase standard location, # then in the common OS standard locations # No we do not. SSL_APP=ssl CRYPTO_APP=crypto SSLEAY_ROOT=$TARGET #for dir in /usr /usr/pkg /usr/local /usr/local/ssl /usr/lib/ssl /usr/ssl; do # AC_CHECK_HEADER($dir/include/openssl/opensslv.h, # ac_cv_openssl=yes, ac_cv_openssl=no) # if test $ac_cv_openssl = yes ; then # SSLEAY_ROOT="$dir" # ssl_found=yes # break # fi #done # Find a usable java compiler # # WARNING this code is copied from ERTS configure.in, and should be # updated if that code changes. I hate duplicating code, but what # can I do. # dnl ERL_TRY_LINK_JAVA(CLASSES, FUNCTION-BODY dnl [ACTION_IF_FOUND [, ACTION-IF-NOT-FOUND]]) dnl Freely inspired by AC_TRY_LINK. (Maybe better to create a dnl AC_LANG_JAVA instead...) AC_DEFUN(ERL_TRY_LINK_JAVA, [java_link='$JAVAC conftest.java 1>&AC_FD_CC' changequote(«, »)dnl cat > conftest.java <&AC_FD_CC cat conftest.java 1>&AC_FD_CC echo "configure: PATH was $PATH" 1>&AC_FD_CC ifelse([$4], , , [ rm -rf conftest* $4 ])dnl fi rm -f conftest*]) dnl AC_CHECK_PROGS(JAVAC, javac guavac gcj jikes bock) if test -n "$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 $ac_cv_prog_javac_ver_1_5 = no; then unset -v JAVAC fi fi if test -n "$JAVAC"; then AC_SUBST(JAVAC) : fi AC_CHECK_PROGS([make_command], [make gmake], [false]) AC_SUBST(make_command) if test "$GCC" = yes; then test_c_compiler="{gnuc, undefined}" else test_c_compiler="undefined" fi AC_SUBST(test_c_compiler) AC_OUTPUT(conf_vars)