diff options
Diffstat (limited to 'libmudflap/configure.in')
| -rw-r--r-- | libmudflap/configure.in | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/libmudflap/configure.in b/libmudflap/configure.in new file mode 100644 index 00000000000..afdde6c52a8 --- /dev/null +++ b/libmudflap/configure.in @@ -0,0 +1,137 @@ +# Process this file with autoconf to produce a configure script, like so: +# aclocal && autoconf && autoheader && automake + +AC_PREREQ(2.13) +AC_INIT(mf-runtime.c) +AC_CANONICAL_SYSTEM +AM_INIT_AUTOMAKE(libmudflap, 1.0) + +AC_SUBST(PACKAGE) +# For libtool versioning info, format is CURRENT:REVISION:AGE +libtool_VERSION=1:0:0 +AC_SUBST(libtool_VERSION) + +dnl AM_ENABLE_MULTILIB +AM_MAINTAINER_MODE +AC_EXEEXT + +target_alias=${target_alias-$target} +AC_SUBST(target_alias) + +AM_CONFIG_HEADER(config.h) + +AC_LANG_C +AC_PROG_CC +if test "x$GCC" != "xyes"; then + AC_MSG_ERROR([libmudflap must be built with GCC]) +fi +AC_PROG_CPP + +# Some hosts don't have dlsym(RTLD_NEXT, "symbol") for use in +# symbol interposition. We disable shared libraries for these. +AC_MSG_CHECKING([whether dlsym(RTLD_NEXT,...) is available]) +AC_TRY_COMPILE([ +#define _GNU_SOURCE +#include <dlfcn.h> +], +[void *foo = dlsym (RTLD_NEXT, "exit");], +[AC_MSG_RESULT(yes)], +[AC_MSG_RESULT(no) +enable_shared=no]) + +AC_CHECK_HEADERS(stdint.h execinfo.h signal.h dlfcn.h) +AC_CHECK_FUNCS(backtrace backtrace_symbols gettimeofday signal) + +dnl Check for 64-bit stdio calls related to Large File Support +AC_CHECK_FUNCS(fopen64 fseeko64 ftello64 stat64) + +AC_TRY_COMPILE([#include <sys/types.h> +#include <sys/ipc.h> +#include <sys/sem.h>],[union semun foo;], [mf_have_semun=1], [mf_have_semun=0]) +if test $mf_have_semun = 1 +then + AC_DEFINE(HAVE_UNION_SEMUN, 1, [union semun defined in sys/ipc.h or sys/sem.h]) +fi + + +AC_MSG_CHECKING([for socklen_t in sys/socket.h]) +AC_TRY_COMPILE([#define _POSIX_PII_SOCKET +#include <sys/types.h> +#include <sys/socket.h>], [socklen_t x = 5;], + [AC_DEFINE(HAVE_SOCKLEN_T, 1, [Define it socklen_t typedef is in sys/socket.h.]) + AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no)]) + +AC_LIBTOOL_DLOPEN +AM_PROG_LIBTOOL +AC_SUBST(enable_shared) +AC_SUBST(enable_static) + +AC_CHECK_HEADER(stdint.h, [MF_HAVE_STDINT_H=1], [MF_HAVE_STDINT_H=0]) +AC_SUBST(MF_HAVE_STDINT_H) +if test $MF_HAVE_STDINT_H = 1 +then + MF_HAVE_UINTPTR_T=1 +else + AC_TRY_COMPILE([#include <sys/types.h>], [uintptr_t k = 0;], + [MF_HAVE_UINTPTR_T=1], [MF_HAVE_UINTPTR_T=0]) +fi +AC_SUBST(MF_HAVE_UINTPTR_T) + +if test ! -d pth +then + # libmudflapth objects are built in this subdirectory + mkdir pth +fi + +pthread_create_version='""' +AC_CHECK_HEADER(pthread.h,[ +AC_DEFINE_UNQUOTED(HAVE_PTHREAD_H, 1, [define if you have <pthread.h>]) +ac_have_pthread_h=yes +],[ +ac_have_pthread_h= +]) +AM_CONDITIONAL(LIBMUDFLAPTH, [test "x$ac_have_pthread_h" != ""]) + +AC_CHECK_LIB(dl, dlsym) + +if test "x$enable_shared" = "xyes" && test "x$ac_have_pthread_h" != ""; then + # NB: don't check for -lpthread here, because then it would be + # added to LIBS. For the thread-unaware libmudflap.la, we don't + # want it there. + + # glibc-related hacks. dlsym() may pick the wrong version of + # interposed functions like pthread_create on modern glibc. + # We need to find the proper symbol version string, and use + # the nonstandard dlvsym(). + AC_CHECK_FUNCS(dlvsym) + AC_CHECK_TOOL(NM, nm) + if test "x$ac_cv_have_dlvsym" != ""; then + # Try compiling a simple pthreads program. Find the shared libraries it + # ends up with. Then use "nm" on those libraries to extract the + # default symbol versioning suffix ("@@"), if any. But that's tricky. + # Rather, run nm on the resulting executable. Unfortunately, autoconf + # doesn't appear to have a macro that builds a test executable for + # subsequent analysis ... so we do it by hand here. + cat >> conftest.c << EOF +#include <pthread.h> +int main () { void *p = (void *) & pthread_create; return (int) p; } +EOF + oldLIBS="$LIBS" + LIBS="$LIBS -lpthread" + pthread_create_version="\"\"" + AC_MSG_CHECKING(pthread_create symbol version) + if eval $ac_link 2>&5 && test -s conftest${ac_exeext}; then + version=`$NM conftest${ac_exeect} | grep 'pthread_create@@' | sed -e 's/^.*@@//'` + if test "x$version" != "x"; then + pthread_create_version="\"$version\"" + fi + fi + AC_MSG_RESULT($pthread_create_version) + LIBS="$oldLIBS" + fi +fi +AC_DEFINE_UNQUOTED(PTHREAD_CREATE_VERSION, $pthread_create_version, [pthread_create symbol version]) + + +AC_OUTPUT([Makefile testsuite/Makefile mf-runtime.h]) |