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Diffstat (limited to 'm4/am-enable-threads.m4')
| -rw-r--r-- | m4/am-enable-threads.m4 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/m4/am-enable-threads.m4 b/m4/am-enable-threads.m4 new file mode 100644 index 0000000..629325f --- /dev/null +++ b/m4/am-enable-threads.m4 @@ -0,0 +1,44 @@ +dnl am-enable-threads.m4 by Miroslav Zagorac <mzagorac@haproxy.com> +dnl +AC_DEFUN([AX_ENABLE_THREADS], [ + AC_ARG_ENABLE([threads], + [AS_HELP_STRING([--enable-threads], [enable threads @<:@default=yes@:>@])], + [enable_threads="${enableval}"], + [enable_threads=yes] + ) + + if test "${enable_threads}" != "no"; then + HAVE_THREADS= + THREADS_CFLAGS= + THREADS_CPPFLAGS= + THREADS_LDFLAGS= + THREADS_LIBS= + + AX_VARIABLES_STORE + + LDFLAGS="${LDFLAGS} ${THREADS_LDFLAGS}" + CPPFLAGS="${CPPFLAGS} ${THREADS_CPPFLAGS}" + + AC_CHECK_LIB([pthread], [pthread_create], [], [AC_MSG_ERROR([THREADS library not found])]) + AC_CHECK_HEADER([pthread.h], [], [AC_MSG_ERROR([THREADS library headers not found])]) + + HAVE_THREADS=yes + THREADS_LIBS="-lpthread" + + AC_DEFINE([USE_THREADS], [1], [Define to 1 for multi-thread support.]) + AC_DEFINE([_REENTRANT], [1], [Define to 1 for multi-thread support.]) + + AX_VARIABLES_RESTORE + + AC_MSG_NOTICE([THREADS environment variables:]) + AC_MSG_NOTICE([ THREADS_CFLAGS=${THREADS_CFLAGS}]) + AC_MSG_NOTICE([ THREADS_CPPFLAGS=${THREADS_CPPFLAGS}]) + AC_MSG_NOTICE([ THREADS_LDFLAGS=${THREADS_LDFLAGS}]) + AC_MSG_NOTICE([ THREADS_LIBS=${THREADS_LIBS}]) + + AC_SUBST([THREADS_CFLAGS]) + AC_SUBST([THREADS_CPPFLAGS]) + AC_SUBST([THREADS_LDFLAGS]) + AC_SUBST([THREADS_LIBS]) + fi +]) |