[PATCH] use AU_DEFUN for AC_PROG_CC_C89/AC_PROG_CC_C99/AC_PROG_CC_STDC

[Adrian Bunk]

This fixes testsuite failures for these macros.

* lib/autoconf/c.m4: use AU_DEFUN for
AC_PROG_CC_C89/AC_PROG_CC_C99/AC_PROG_CC_STDC
---
 lib/autoconf/c.m4 |   15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/lib/autoconf/c.m4 b/lib/autoconf/c.m4
index 5f02647..fd10bea 100644
--- a/lib/autoconf/c.m4
+++ b/lib/autoconf/c.m4
@@ -1438,24 +1438,15 @@ dnl with extended modes being tried first.
 
 # AC_PROG_CC_C89
 # --------------
-AC_DEFUN([AC_PROG_CC_C89],
-[ AC_REQUIRE([AC_PROG_CC])dnl
-  m4_warn([obsolete], [$0 is obsolete; use AC_PROG_CC])
-])
+AU_DEFUN([AC_PROG_CC_C89], [AC_PROG_CC], [$0 is obsolete; use AC_PROG_CC])
 
 # AC_PROG_CC_C99
 # --------------
-AC_DEFUN([AC_PROG_CC_C99],
-[ AC_REQUIRE([AC_PROG_CC])dnl
-  m4_warn([obsolete], [$0 is obsolete; use AC_PROG_CC])
-])
+AU_DEFUN([AC_PROG_CC_C99], [AC_PROG_CC], [$0 is obsolete; use AC_PROG_CC])
 
 # AC_PROG_CC_STDC
 # ---------------
-AC_DEFUN([AC_PROG_CC_STDC],
-[ AC_REQUIRE([AC_PROG_CC])dnl
-  m4_warn([obsolete], [$0 is obsolete; use AC_PROG_CC])
-])
+AU_DEFUN([AC_PROG_CC_STDC], [AC_PROG_CC], [$0 is obsolete; use AC_PROG_CC])
 
 
 # AC_C_BACKSLASH_A
-- 
1.7.10.4