X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/f096bcccb8e4c9ba57d128c2f08c52f7dc94e07d..158d713722a1635939f699a8ea1605e937866bfc:/src/OS/Makefile-SunOS5?ds=sidebyside

diff --git a/src/OS/Makefile-SunOS5 b/src/OS/Makefile-SunOS5
index 33cb1f033..557c031fd 100644
--- a/src/OS/Makefile-SunOS5
+++ b/src/OS/Makefile-SunOS5
@@ -18,5 +18,6 @@ XLFLAGS=-L$(X11)/lib -R$(X11)/lib
 X11LIB=$(X11)/lib
 
 OS_C_INCLUDES=setenv.c
+CFLAGS += -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1 -D__EXTENSIONS__
 
 # End