From 60eaaca663551f03031a82cc4a135e5ac668dd90 Mon Sep 17 00:00:00 2001
From: Dan Winship <danw@src.gnome.org>
Date: Tue, 5 Mar 2002 16:57:29 +0000
Subject: I'm not dead yet!

svn path=/trunk/; revision=15919
---
 macros/need-declaration.m4 | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 macros/need-declaration.m4

(limited to 'macros/need-declaration.m4')

diff --git a/macros/need-declaration.m4 b/macros/need-declaration.m4
new file mode 100644
index 0000000000..8a217b8a30
--- /dev/null
+++ b/macros/need-declaration.m4
@@ -0,0 +1,42 @@
+dnl See whether we need a declaration for a function.
+dnl GCC_NEED_DECLARATION(FUNCTION [, EXTRA-HEADER-FILES])
+AC_DEFUN([GCC_NEED_DECLARATION],
+[AC_MSG_CHECKING([whether $1 must be declared])
+AC_CACHE_VAL(gcc_cv_decl_needed_$1,
+[AC_TRY_COMPILE([
+#include <stdio.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+$2],
+[char *(*pfn) = (char *(*)) $1],
+eval "gcc_cv_decl_needed_$1=no", eval "gcc_cv_decl_needed_$1=yes")])
+if eval "test \"`echo '$gcc_cv_decl_needed_'$1`\" = yes"; then
+  AC_MSG_RESULT(yes)
+  gcc_need_declarations="$gcc_need_declarations $1"
+  gcc_tr_decl=NEED_DECLARATION_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  AC_DEFINE_UNQUOTED($gcc_tr_decl)
+else
+  AC_MSG_RESULT(no)
+fi
+])dnl
+
+dnl Check multiple functions to see whether each needs a declaration.
+dnl GCC_NEED_DECLARATIONS(FUNCTION... [, EXTRA-HEADER-FILES])
+AC_DEFUN([GCC_NEED_DECLARATIONS],
+[for ac_func in $1
+do
+GCC_NEED_DECLARATION($ac_func, $2)
+done
+]
+)
-- 
cgit