MacOS: support large group-membership counts

[exim.git] / src / OS / os.h-Darwin

diff --git a/src/OS/os.h-Darwin b/src/OS/os.h-Darwin
index f3f22f084ac9d9791237402442b8ed8b8fcd8ffe..b597f9da30a965d330311e69bb4175e520e9cb94 100644 (file)
--- a/src/OS/os.h-Darwin
+++ b/src/OS/os.h-Darwin
@@ -48,4 +48,9 @@ updating Exim to use the newer interface. */
 /* seems arpa/nameser.h does not define this */
 #define NS_MAXMSG 65535
 
+/* There may be very many supplementary groups for the user. See notes
+in "man 2 getgroups". */
+#define _DARWIN_UNLIMITED_GETGROUPS
+#define EXIM_GROUPLIST_SIZE 64
+
 /* End */