maint: fts.c: remove __opendir2's now-unused parameter, oflag

[gnulib.git] / m4 / getaddrinfo.m4

diff --git a/m4/getaddrinfo.m4 b/m4/getaddrinfo.m4
index 20a6226..fe8d14f 100644 (file)
--- a/m4/getaddrinfo.m4
+++ b/m4/getaddrinfo.m4
@@ -1,4 +1,4 @@
-# getaddrinfo.m4 serial 26
+# getaddrinfo.m4 serial 28
 dnl Copyright (C) 2004-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -63,7 +63,7 @@ AC_DEFUN([gl_GETADDRINFO],
   # We can't use AC_REPLACE_FUNCS here because gai_strerror may be an
   # inline function declared in ws2tcpip.h, so we need to get that
   # header included somehow.
-  AC_CHECK_DECLS([gai_strerror, gai_strerrorA], [], [break], [[
+  AC_CHECK_DECLS([gai_strerror], [], [], [[
 #include <sys/types.h>
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
@@ -77,6 +77,19 @@ AC_DEFUN([gl_GETADDRINFO],
 #include <stddef.h>
 ]])
   if test $ac_cv_have_decl_gai_strerror = yes; then
+    AC_CHECK_DECLS([gai_strerrorA], [], [], [[
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
+#endif
+#include <stddef.h>
+]])
     dnl check for correct signature
     AC_CACHE_CHECK([for gai_strerror with POSIX signature],
      [gl_cv_func_gai_strerror_posix_signature], [
@@ -92,7 +105,11 @@ AC_DEFUN([gl_GETADDRINFO],
 #include <ws2tcpip.h>
 #endif
 #include <stddef.h>
-extern const char *gai_strerror(int);]])],
+extern
+#ifdef __cplusplus
+"C"
+#endif
+const char *gai_strerror(int);]])],
         [gl_cv_func_gai_strerror_posix_signature=yes],
         [gl_cv_func_gai_strerror_posix_signature=no])])
     if test $gl_cv_func_gai_strerror_posix_signature = no; then