X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fpassfd.c;h=945882045ee3a45800eb1e5c73a9fd04905e826c;hb=96924181b7f9eb0c8b0585467fc3cb2da2766a4f;hp=86c73760b5f15ff4bda3f34dd5ffa80719af92dc;hpb=722fc0acd0be939543544f6eaa66a9750a69d4a0;p=gnulib.git

diff --git a/lib/passfd.c b/lib/passfd.c
index 86c73760b..945882045 100644
--- a/lib/passfd.c
+++ b/lib/passfd.c
@@ -30,6 +30,12 @@
 
 #include "cloexec.h"
 
+/* The code that uses CMSG_FIRSTHDR is enabled on
+   Linux, MacOS X, FreeBSD, OpenBSD, NetBSD, AIX, OSF/1, Cygwin.
+   The code that uses HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS is enabled on
+   HP-UX, IRIX, Solaris.  */
+
+/* MSG_CMSG_CLOEXEC is defined only on Linux, as of 2011.  */
 #ifndef MSG_CMSG_CLOEXEC
 # define MSG_CMSG_CLOEXEC 0
 #endif