configure.in: Pull AC_CHECK_HEADER call out of shell if statement to avoid trouble when...

	* configure.in: Pull AC_CHECK_HEADER call out of shell if statement
	to avoid trouble when updating to autoconf 2.5x.
	* configure: Regenerate (with autoconf 2.13 still).

From-SVN: r74285

gcc/ChangeLog

+2003-12-04  Nathanael Nerode  <neroden@gcc.gnu.org>
+
+	* configure.in: Pull AC_CHECK_HEADER call out of shell if statement
+	to avoid trouble when updating to autoconf 2.5x.
+	* configure: Regenerate (with autoconf 2.13 still).
+
 2003-12-04  J"orn Rennecke <joern.rennecke@superh.com>
 
 	* sh.md (truncdiqi2): Use andi opcode for immediate.

gcc/configure.in

@@ -397,6 +397,12 @@ if test x$ac_fold_checking != x ; then
 fi
 valgrind_path_defines=
 valgrind_command=
+
+dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
+dnl # an if statement.  This was the source of very frustrating bugs
+dnl # in converting to autoconf 2.5x!
+AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
+
 if test x$ac_checking_valgrind != x ; then
   # It is certainly possible that there's valgrind but no valgrind.h.
   # GCC relies on making annotations so we must have both.
@@ -418,7 +424,6 @@ if test x$ac_checking_valgrind != x ; then
   [gcc_cv_header_memcheck_h=yes], 
   gcc_cv_header_memcheck_h=no)
   AC_MSG_RESULT($gcc_cv_header_memcheck_h)
-  AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
   AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
 	[$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
   if test "x$valgrind_path" = "x" \