From: degomme <augustin.degomme@unibas.ch>
Date: Thu, 5 Apr 2018 08:54:36 +0000 (+0200)
Subject: force gnu_source here.
X-Git-Tag: v3.20~514
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/52d1e3f298a6f666d080441151f4718552c0fc15?hp=398f1a82c992764ca69db74edde82ad36a6b1277

force gnu_source here.
It's needed for unistd.h types, which would be not defined if the user only specifies POSIX_SOURCE
---

diff --git a/include/smpi/smpi_helpers.h b/include/smpi/smpi_helpers.h
index b76af574da..13ccaafd69 100644
--- a/include/smpi/smpi_helpers.h
+++ b/include/smpi/smpi_helpers.h
@@ -1,6 +1,10 @@
 #ifndef MPI_HELPERS_H
 #define MPI_HELPERS_H
 
+#ifndef _GNU_SOURCE
+  #define _GNU_SOURCE
+#endif
+
 #include <unistd.h>
 #include <sys/time.h> /* Load it before the define next line to not mess with the system headers */
 #if _POSIX_TIMERS