[SCM] GNU Autoconf source repository branch, master, updated. v2.69-38-g32fbf34

[Paul Eggert]

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- Log -----------------------------------------------------------------
commit 32fbf346b74516d709d6f9bebc662fe4b3599ba5
Author: Paul Eggert <address@hidden>
Date:   Wed Oct 24 12:25:34 2012 -0700

    AC_PROG_CC_C89, AC_PROG_CC_C99, AC_PROG_CC_STDC: Use AU_DEFUN
    
    This fixes a bug introduced by the most recent change to c.m4.
    Problem reported by Jim Meyering in
    <http://lists.gnu.org/archive/html/autoconf/2012-10/msg00048.html>.
    * lib/autoconf/c.m4 (AC_PROG_CC_C89, AC_PROG_CC_C99, AC_PROG_CC_STDC):
    Use AU_DEFUN and AC_REQUIRE, not AU_ALIAS, as the latter is not
    compatible with how Automake redefines AC_PROG_CC.

-----------------------------------------------------------------------

Summary of changes:
 lib/autoconf/c.m4 |   18 +++++++++++++++---
 1 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/lib/autoconf/c.m4 b/lib/autoconf/c.m4
index 4a84489..0802f85 100644
--- a/lib/autoconf/c.m4
+++ b/lib/autoconf/c.m4
@@ -1448,15 +1448,27 @@ dnl preferably extc11.
 
 # AC_PROG_CC_C89
 # --------------
-AU_ALIAS([AC_PROG_CC_C89], [AC_PROG_CC])
+# Do not use AU_ALIAS here and in AC_PROG_CC_C99 and AC_PROG_CC_STDC,
+# as that'd be incompatible with how Automake redefines AC_PROG_CC.  See
+# <http://lists.gnu.org/archive/html/autoconf/2012-10/msg00048.html>.
+AU_DEFUN([AC_PROG_CC_C89],
+  [AC_REQUIRE([AC_PROG_CC])],
+  [$0 is obsolete; use AC_PROG_CC]
+)
 
 # AC_PROG_CC_C99
 # --------------
-AU_ALIAS([AC_PROG_CC_C99], [AC_PROG_CC])
+AU_DEFUN([AC_PROG_CC_C99],
+  [AC_REQUIRE([AC_PROG_CC])],
+  [$0 is obsolete; use AC_PROG_CC]
+)
 
 # AC_PROG_CC_STDC
 # ---------------
-AU_ALIAS([AC_PROG_CC_STDC], [AC_PROG_CC])
+AU_DEFUN([AC_PROG_CC_STDC],
+  [AC_REQUIRE([AC_PROG_CC])],
+  [$0 is obsolete; use AC_PROG_CC]
+)
 
 
 # AC_C_BACKSLASH_A


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