configure.ac: always define _GNU_SOURCE on Linux

Make sure glibc gives us all features.
2014-03-15 18:24:46 +01:00
parent 5696f91a1e
commit 7d353bbe2a
4 changed files with 3 additions and 13 deletions
--- a/configure.ac
+++ b/configure.ac
@@ -90,6 +90,9 @@ linux-android*)
 linux*)
 	host_is_linux=yes
 	linux_auto=auto
+
+	dnl allow using all glibc features
+	CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 	;;

 mingw32* | windows*)