# HG changeset patch
# User Simon Josefsson <simon@josefsson.org>
# Date 1242802369 -7200
# Node ID 40afcbcc19edec7d0303fcc7abc8e6317d34f507
# Parent  79df2eaa43956d20652feb6d3058614d8aeb44a3
sys_socket: MinGW and IRIX does not have sa_family_t type.
Reported by "Tom G. Christensen" <tgc@jupiterrise.com>.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2009-05-20  Simon Josefsson  <simon@josefsson.org>
+
+	MinGW and IRIX does not have sa_family_t type.  Reported by "Tom
+	G. Christensen" <tgc@jupiterrise.com>.
+	* m4/sys_socket_h.m4: Check for sa_family_t.
+	* lib/sys_socket.in.h: Typedef sa_family_t when needed.
+	* modules/sys_socket: Substitute HAVE_SA_FAMILY_T.
+	* tests/test-sys_socket.c: Check that sa_family_t works.
+
 2009-05-18  Eric Blake  <ebb9@byu.net>
 
 	maint.mk: allow gnulib_dir in VPATH build
diff --git a/lib/sys_socket.in.h b/lib/sys_socket.in.h
--- a/lib/sys_socket.in.h
+++ b/lib/sys_socket.in.h
@@ -43,6 +43,10 @@
 #ifndef _GL_SYS_SOCKET_H
 #define _GL_SYS_SOCKET_H
 
+#if !@HAVE_SA_FAMILY_T@
+typedef unsigned short  sa_family_t;
+#endif
+
 #if !@HAVE_STRUCT_SOCKADDR_STORAGE@
 # include <alignof.h>
 /* Code taken from glibc sysdeps/unix/sysv/linux/bits/socket.h on
diff --git a/m4/sys_socket_h.m4 b/m4/sys_socket_h.m4
--- a/m4/sys_socket_h.m4
+++ b/m4/sys_socket_h.m4
@@ -42,7 +42,7 @@
   fi
   # We need to check for ws2tcpip.h now.
   gl_PREREQ_SYS_H_SOCKET
-  AC_CHECK_TYPES([struct sockaddr_storage],,,[
+  AC_CHECK_TYPES([struct sockaddr_storage, sa_family_t],,,[
   /* sys/types.h is not needed according to POSIX, but the
      sys/socket.h in i386-unknown-freebsd4.10 and
      powerpc-apple-darwin5.5 required it. */
@@ -58,6 +58,10 @@
     HAVE_STRUCT_SOCKADDR_STORAGE=0
     SYS_SOCKET_H='sys/socket.h'
   fi
+  if test $ac_cv_type_sa_family_t = no; then
+    HAVE_SA_FAMILY_T=0
+    SYS_SOCKET_H='sys/socket.h'
+  fi
   if test -n "$SYS_SOCKET_H"; then
     gl_PREREQ_SYS_H_WINSOCK2
   fi
@@ -137,4 +141,5 @@
   GNULIB_SETSOCKOPT=0;  AC_SUBST([GNULIB_SETSOCKOPT])
   GNULIB_SHUTDOWN=0;    AC_SUBST([GNULIB_SHUTDOWN])
   HAVE_STRUCT_SOCKADDR_STORAGE=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE])
+  HAVE_SA_FAMILY_T=1;   AC_SUBST([HAVE_SA_FAMILY_T])
 ])
diff --git a/modules/sys_socket b/modules/sys_socket
--- a/modules/sys_socket
+++ b/modules/sys_socket
@@ -46,6 +46,7 @@
 	      -e 's|@''HAVE_WINSOCK2_H''@|$(HAVE_WINSOCK2_H)|g' \
 	      -e 's|@''HAVE_WS2TCPIP_H''@|$(HAVE_WS2TCPIP_H)|g' \
 	      -e 's|@''HAVE_STRUCT_SOCKADDR_STORAGE''@|$(HAVE_STRUCT_SOCKADDR_STORAGE)|g' \
+	      -e 's|@''HAVE_SA_FAMILY_T''@|$(HAVE_SA_FAMILY_T)|g' \
 	      -e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
 	      < $(srcdir)/sys_socket.in.h; \
 	} > $@-t
diff --git a/tests/test-sys_socket.c b/tests/test-sys_socket.c
--- a/tests/test-sys_socket.c
+++ b/tests/test-sys_socket.c
@@ -31,6 +31,7 @@
 main ()
 {
   struct sockaddr_storage x;
+  sa_family_t i;
 
   /* Check some errno values.  */
   switch (0)
@@ -46,6 +47,7 @@
     }
 
   x.ss_family = 42;
+  i = 4711;
 
   return 0;
 }