strtoimax: Avoid link error on OSF/1 with DTK cc.

[gnulib.git] / m4 / strtoimax.m4

diff --git a/m4/strtoimax.m4 b/m4/strtoimax.m4
index 9957637..a8d0b69 100644 (file)
--- a/m4/strtoimax.m4
+++ b/m4/strtoimax.m4
@@ -1,34 +1,23 @@
-# strtoimax.m4 serial 6
-dnl Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+# strtoimax.m4 serial 11
+dnl Copyright (C) 2002-2004, 2006, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_STRTOIMAX],
 [
-  dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.
-  AC_REQUIRE([AC_PROG_CPP])
-  AC_REQUIRE([AC_PROG_EGREP])
+  AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
 
-  AC_CACHE_CHECK([whether <inttypes.h> defines strtoimax as a macro],
-    jm_cv_func_strtoimax_macro,
-    [AC_EGREP_CPP([inttypes_h_defines_strtoimax], [#include <inttypes.h>
-#ifdef strtoimax
- inttypes_h_defines_strtoimax
-#endif],
-       jm_cv_func_strtoimax_macro=yes,
-       jm_cv_func_strtoimax_macro=no)])
-
-  if test "$jm_cv_func_strtoimax_macro" != yes; then
-    AC_REPLACE_FUNCS(strtoimax)
-    if test $ac_cv_func_strtoimax = no; then
-      gl_PREREQ_STRTOIMAX
-    fi
+  dnl On OSF/1 5.1 with cc, this function is declared but not defined.
+  AC_CHECK_FUNCS_ONCE([strtoimax])
+  AC_CHECK_DECLS_ONCE([strtoimax])
+  if test "$ac_cv_have_decl_strtoimax" != yes; then
+    HAVE_DECL_STRTOIMAX=0
   fi
 ])
 
 # Prerequisites of lib/strtoimax.c.
 AC_DEFUN([gl_PREREQ_STRTOIMAX], [
-  AC_CHECK_DECLS(strtoll)
+  AC_CHECK_DECLS([strtoll])
   AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
 ])