diff options
| author | Max Kellermann <max@duempel.org> | 2014-12-09 18:42:35 +0100 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2014-12-09 21:19:09 +0100 |
| commit | 7a1e026bb557c07f9b324f5fef64f0a483cbd017 (patch) | |
| tree | 929214843562e6046ea39a1f09e88a57df8c326e /configure.ac | |
| parent | 64f04ee6dbc9065db3a0af4fbe8b23b820c8a831 (diff) | |
| download | mpd-7a1e026bb557c07f9b324f5fef64f0a483cbd017.tar.gz mpd-7a1e026bb557c07f9b324f5fef64f0a483cbd017.tar.xz mpd-7a1e026bb557c07f9b324f5fef64f0a483cbd017.zip | |
configure.ac: check for pthread before librt
Works around a linker problem with some older glibc versions: if
"-lrt" was used, then "-pthread" was implied, but only the symbols
used by librt were available. This led to a linker error because
pthread_atfork() was not found.
So with "-lrt", autoconf decides that no pthread flag is necessary,
but in the end fails due to pthread_atfork() missing.
By checking for pthread before librt, we avoid this dependency
problem.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/configure.ac b/configure.ac index b58321981..755ff382a 100644 --- a/configure.ac +++ b/configure.ac @@ -193,6 +193,18 @@ dnl --------------------------------------------------------------------------- dnl Header/Library Checks dnl --------------------------------------------------------------------------- +AX_PTHREAD +LIBS="$PTHREAD_LIBS $LIBS" +AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS" +AM_CXXFLAGS="$AM_CXXFLAGS $PTHREAD_CFLAGS" + +AC_CHECK_LIB([pthread], [pthread_setname_np], + [have_pthread_setname_np=yes], + [have_pthread_setname_np=no]) +if test x$have_pthread_setname_np = xyes; then + AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [Is pthread_setname_np() available?]) +fi + AC_SEARCH_LIBS([clock_gettime], [rt]) AC_ARG_ENABLE(syslog, @@ -229,18 +241,6 @@ AC_CHECK_HEADERS(valgrind/memcheck.h) AC_CHECK_HEADERS([sys/prctl.h], AC_CHECK_FUNCS([prctl])) -AX_PTHREAD -LIBS="$PTHREAD_LIBS $LIBS" -AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS" -AM_CXXFLAGS="$AM_CXXFLAGS $PTHREAD_CFLAGS" - -AC_CHECK_LIB([pthread], [pthread_setname_np], - [have_pthread_setname_np=yes], - [have_pthread_setname_np=no]) -if test x$have_pthread_setname_np = xyes; then - AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [Is pthread_setname_np() available?]) -fi - dnl --------------------------------------------------------------------------- dnl Event loop selection dnl --------------------------------------------------------------------------- |