X-Git-Url: https://vcs.fsf.org/?p=exim.git;a=blobdiff_plain;f=src%2FOS%2Fos.h-GNU;h=1de2e3e849dbba3b457145d301351b0db40274d7;hp=44993163d319da42686679b02a7be987a2741ff2;hb=66e0f1529f73be9afa5388018729549e9ee38bd6;hpb=b30930a554edd087932dbff2d4d32f340de28ed1

diff --git a/src/OS/os.h-GNU b/src/OS/os.h-GNU
index 44993163d..1de2e3e84 100644
--- a/src/OS/os.h-GNU
+++ b/src/OS/os.h-GNU
@@ -20,4 +20,8 @@ typedef struct flock flock_t;
 /* default is non-const */
 #define ICONV_ARG2_TYPE const char **
 
+/* setgroups(0, NULL) succeeds, and drops the gid group
+as well as any supplementary groups*/
+#define OS_SETGROUPS_ZERO_DROPS_ALL
+
 /* End */