fix typos

[gnulib.git] / m4 / jm-macros.m4

diff --git a/m4/jm-macros.m4 b/m4/jm-macros.m4
index 317ea28..ebc1946 100644 (file)
--- a/m4/jm-macros.m4
+++ b/m4/jm-macros.m4
@@ -1,4 +1,4 @@
-#serial 14
+#serial 16

 
 dnl Misc type-related macros for fileutils, sh-utils, textutils.
 
 
 dnl Misc type-related macros for fileutils, sh-utils, textutils.
 


@@ -195,11 +195,11 @@ AC_DEFUN(jm_MACROS,
 # This macro must be invoked before any tests that run the compiler.
 AC_DEFUN(jm_CHECK_ALL_TYPES,
 [
 # This macro must be invoked before any tests that run the compiler.
 AC_DEFUN(jm_CHECK_ALL_TYPES,
 [

-  # Enable GNU extensions.
-  # Define this here, not in acconfig's @TOP@ section, since definitions
-  # in the latter don't make it into the configure-time tests.
-  AC_DEFINE([_GNU_SOURCE], 1,
-    [Enable GNU extensions on systems that have them.])
+  # Emit this code into config.h.in.
+  # The ifndef is to avoid redefinition warnings.
+  AH_VERBATIM([_GNU_SOURCE], [#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif])

 
   dnl This test must come as early as possible after the compiler configuration
   dnl tests, because the choice of the file model can (in principle) affect
 
   dnl This test must come as early as possible after the compiler configuration
   dnl tests, because the choice of the file model can (in principle) affect