Adjust strtod detection to catch glibc 2.7 bug.

[gnulib.git] / m4 / vsnprintf.m4

diff --git a/m4/vsnprintf.m4 b/m4/vsnprintf.m4
index 2b9bb4e..accc79f 100644 (file)
--- a/m4/vsnprintf.m4
+++ b/m4/vsnprintf.m4
@@ -1,4 +1,4 @@
-# vsnprintf.m4 serial 3
+# vsnprintf.m4 serial 4
 dnl Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -7,11 +7,23 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_VSNPRINTF],
 [
   AC_REQUIRE([gl_STDIO_H_DEFAULTS])
-  AC_REPLACE_FUNCS(vsnprintf)
-  AC_CHECK_DECLS_ONCE(vsnprintf)
+  AC_CHECK_FUNCS([vsnprintf])
+  if test $ac_cv_func_vsnprintf = no; then
+    gl_REPLACE_VSNPRINTF
+  fi
+  AC_CHECK_DECLS_ONCE([vsnprintf])
   if test $ac_cv_have_decl_vsnprintf = no; then
     HAVE_DECL_VSNPRINTF=0
   fi
+])
+
+AC_DEFUN([gl_REPLACE_VSNPRINTF],
+[
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  AC_LIBOBJ([vsnprintf])
+  if test $ac_cv_func_vsnprintf = yes; then
+    REPLACE_VSNPRINTF=1
+  fi
   gl_PREREQ_VSNPRINTF
 ])