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[RFA] obsoleting BFD_NEED_DECLARATION

Jerome Guitton guitton@adacore.com
Tue Apr 26 09:48:00 GMT 2005 
Daniel Jacobowitz (drow@false.org):

> Jerome, could you please revert the bfd.m4 parts of this patch for now? 
> binutils/, ld/, and mmalloc/ all use this.  Those directories still use
> autoconf 2.13.

Mmmm, indeed; sorry for that. Thanks for noticing it.
FYI, here is the patch that I checked in:


2005-04-26  Jerome Guitton  <guitton@gnat.com>

	* bfd.m4 (BFD_NEED_DECLARATION): Restore.

Index: bfd.m4
===================================================================
RCS file: /cvs/src/src/bfd/bfd.m4,v
retrieving revision 1.2
diff -u -r1.2 bfd.m4
--- bfd.m4	22 Apr 2005 13:58:11 -0000	1.2
+++ bfd.m4	26 Apr 2005 09:18:42 -0000
@@ -1,6 +1,36 @@
 dnl This file was derived from acinclude.m4.
 
 
+dnl See whether we need a declaration for a function.
+
+AC_DEFUN([BFD_NEED_DECLARATION],
+[AC_MSG_CHECKING([whether $1 must be declared])
+AC_CACHE_VAL(bfd_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],
+[char *(*pfn) = (char *(*)) $1],
+bfd_cv_decl_needed_$1=no, bfd_cv_decl_needed_$1=yes)])
+AC_MSG_RESULT($bfd_cv_decl_needed_$1)
+if test $bfd_cv_decl_needed_$1 = yes; then
+  AC_DEFINE([NEED_DECLARATION_]translit($1, [a-z], [A-Z]), 1,
+	    [Define if $1 is not declared in system header files.])
+fi
+])dnl
+
+
 dnl Check for existence of a type $1 in sys/procfs.h
 
 AC_DEFUN([BFD_HAVE_SYS_PROCFS_TYPE],
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