build-system: define _GNU_SOURCE centrally

Instead of having everyone define _GNU_SOURCE and similar macros
seperately, simply do so centrally by using AC_USE_SYSTEM_EXTENSIONS

diff --git a/bus/dir-watch-inotify.c b/bus/dir-watch-inotify.c
index 44ec9cf01b1f626af5b731b812ebacba31bd61cb..12fdbb076768de39bb55030bbe1f53d9eff6e8ae 100644 (file)
--- a/bus/dir-watch-inotify.c
+++ b/bus/dir-watch-inotify.c
@@ -24,7 +24,6 @@
 
 #include <config.h>
 
-#define _GNU_SOURCE
 #include <stdlib.h>
 #include <unistd.h>
 #include <fcntl.h>

diff --git a/configure.in b/configure.in
index 0732adcdf692f64970f133c2ec1ee94e85d50834..62312eb00a251090ffaaf2a71de631278b8f76ac 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -57,6 +57,7 @@ AC_SUBST(DBUS_VERSION)
 AC_PROG_CC
 AM_PROG_CC_C_O
 AC_PROG_CXX
+AC_USE_SYSTEM_EXTENSIONS
 AC_ISC_POSIX
 AC_HEADER_STDC
 AC_C_INLINE

diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c
index 8b225e7e7530c5cdd74bdbe63b98c447c26ca124..9631be186b12afd1488f8f92c4a5871b07dc209c 100644 (file)
--- a/dbus/dbus-sysdeps-unix.c
+++ b/dbus/dbus-sysdeps-unix.c
@@ -22,7 +22,7 @@
  *
  */
 
-#define _GNU_SOURCE 
+#include <config.h>
 
 #include "dbus-internals.h"
 #include "dbus-sysdeps.h"