138 lines
4.1 KiB
Plaintext
138 lines
4.1 KiB
Plaintext
# Process this file with autoconf to produce a configure script, like so:
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# aclocal && autoconf && autoheader && automake
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AC_PREREQ(2.13)
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AC_INIT(mf-runtime.c)
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AC_CANONICAL_SYSTEM
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AM_INIT_AUTOMAKE(libmudflap, 1.0)
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AC_SUBST(PACKAGE)
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# For libtool versioning info, format is CURRENT:REVISION:AGE
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libtool_VERSION=1:0:0
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AC_SUBST(libtool_VERSION)
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dnl AM_ENABLE_MULTILIB
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AM_MAINTAINER_MODE
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AC_EXEEXT
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target_alias=${target_alias-$target}
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AC_SUBST(target_alias)
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AM_CONFIG_HEADER(config.h)
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AC_LANG_C
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AC_PROG_CC
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if test "x$GCC" != "xyes"; then
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AC_MSG_ERROR([libmudflap must be built with GCC])
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fi
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AC_PROG_CPP
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# Some hosts don't have dlsym(RTLD_NEXT, "symbol") for use in
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# symbol interposition. We disable shared libraries for these.
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AC_MSG_CHECKING([whether dlsym(RTLD_NEXT,...) is available])
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AC_TRY_COMPILE([
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#define _GNU_SOURCE
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#include <dlfcn.h>
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],
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[void *foo = dlsym (RTLD_NEXT, "exit");],
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[AC_MSG_RESULT(yes)],
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[AC_MSG_RESULT(no)
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enable_shared=no])
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AC_CHECK_HEADERS(stdint.h execinfo.h signal.h dlfcn.h)
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AC_CHECK_FUNCS(backtrace backtrace_symbols gettimeofday signal)
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dnl Check for 64-bit stdio calls related to Large File Support
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AC_CHECK_FUNCS(fopen64 fseeko64 ftello64 stat64)
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AC_TRY_COMPILE([#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/sem.h>],[union semun foo;], [mf_have_semun=1], [mf_have_semun=0])
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if test $mf_have_semun = 1
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then
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AC_DEFINE(HAVE_UNION_SEMUN, 1, [union semun defined in sys/ipc.h or sys/sem.h])
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fi
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AC_MSG_CHECKING([for socklen_t in sys/socket.h])
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AC_TRY_COMPILE([#define _POSIX_PII_SOCKET
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#include <sys/types.h>
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#include <sys/socket.h>], [socklen_t x = 5;],
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[AC_DEFINE(HAVE_SOCKLEN_T, 1, [Define it socklen_t typedef is in sys/socket.h.])
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AC_MSG_RESULT(yes)],
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[AC_MSG_RESULT(no)])
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AC_LIBTOOL_DLOPEN
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AM_PROG_LIBTOOL
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AC_SUBST(enable_shared)
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AC_SUBST(enable_static)
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AC_CHECK_HEADER(stdint.h, [MF_HAVE_STDINT_H=1], [MF_HAVE_STDINT_H=0])
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AC_SUBST(MF_HAVE_STDINT_H)
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if test $MF_HAVE_STDINT_H = 1
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then
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MF_HAVE_UINTPTR_T=1
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else
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AC_TRY_COMPILE([#include <sys/types.h>], [uintptr_t k = 0;],
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[MF_HAVE_UINTPTR_T=1], [MF_HAVE_UINTPTR_T=0])
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fi
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AC_SUBST(MF_HAVE_UINTPTR_T)
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if test ! -d pth
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then
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# libmudflapth objects are built in this subdirectory
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mkdir pth
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fi
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pthread_create_version='""'
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AC_CHECK_HEADER(pthread.h,[
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AC_DEFINE_UNQUOTED(HAVE_PTHREAD_H, 1, [define if you have <pthread.h>])
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ac_have_pthread_h=yes
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],[
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ac_have_pthread_h=
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])
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AM_CONDITIONAL(LIBMUDFLAPTH, [test "x$ac_have_pthread_h" != ""])
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AC_CHECK_LIB(dl, dlsym)
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if test "x$enable_shared" = "xyes" && test "x$ac_have_pthread_h" != ""; then
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# NB: don't check for -lpthread here, because then it would be
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# added to LIBS. For the thread-unaware libmudflap.la, we don't
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# want it there.
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# glibc-related hacks. dlsym() may pick the wrong version of
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# interposed functions like pthread_create on modern glibc.
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# We need to find the proper symbol version string, and use
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# the nonstandard dlvsym().
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AC_CHECK_FUNCS(dlvsym)
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AC_CHECK_TOOL(NM, nm)
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if test "x$ac_cv_have_dlvsym" != ""; then
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# Try compiling a simple pthreads program. Find the shared libraries it
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# ends up with. Then use "nm" on those libraries to extract the
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# default symbol versioning suffix ("@@"), if any. But that's tricky.
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# Rather, run nm on the resulting executable. Unfortunately, autoconf
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# doesn't appear to have a macro that builds a test executable for
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# subsequent analysis ... so we do it by hand here.
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cat >> conftest.c << EOF
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#include <pthread.h>
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int main () { void *p = (void *) & pthread_create; return (int) p; }
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EOF
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oldLIBS="$LIBS"
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LIBS="$LIBS -lpthread"
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pthread_create_version="\"\""
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AC_MSG_CHECKING(pthread_create symbol version)
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if eval $ac_link 2>&5 && test -s conftest${ac_exeext}; then
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version=`$NM conftest${ac_exeect} | grep 'pthread_create@@' | sed -e 's/^.*@@//'`
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if test "x$version" != "x"; then
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pthread_create_version="\"$version\""
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fi
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fi
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AC_MSG_RESULT($pthread_create_version)
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LIBS="$oldLIBS"
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fi
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fi
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AC_DEFINE_UNQUOTED(PTHREAD_CREATE_VERSION, $pthread_create_version, [pthread_create symbol version])
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AC_OUTPUT([Makefile testsuite/Makefile mf-runtime.h])
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