MacOS: probe for a usable TFO system configuration

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

diff --git a/src/OS/os.h-Darwin b/src/OS/os.h-Darwin
index f3f22f084ac9d9791237402442b8ed8b8fcd8ffe..d0a1a092f8e2bde642238ccbf31dd8b0326de3fc 100644 (file)
--- a/src/OS/os.h-Darwin
+++ b/src/OS/os.h-Darwin
@@ -48,4 +48,15 @@ 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
+
+/* TCP_FASTOPEN support.  For the moment, claim there is none
+(the probe fails; unsure why).
+Sometime in the future need to investigate connectex(). */
+
+#define EXIM_TFO_PROBE
+
 /* End */