fix in-tree-binutils builds

Quite a while ago configure.in go renamed to configure.ac in all of
binutils' subtrees - allow for both when checking for that case while
configuring.

gcc/
2015-07-15  Jan Beulich  <jbeulich@suse.com>

	* acinclude.m4: Replace configure.in by configure.[ai][cn].
	* configure.ac: Likewise.
	* configure: Re-generate.

--- a/gcc/acinclude.m4
+++ b/gcc/acinclude.m4
@@ -390,7 +390,7 @@ AC_DEFUN([_gcc_COMPUTE_GAS_VERSION],
 [gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
 for f in $gcc_cv_as_bfd_srcdir/configure \
          $gcc_cv_as_gas_srcdir/configure \
-         $gcc_cv_as_gas_srcdir/configure.in \
+         $gcc_cv_as_gas_srcdir/configure.[ai][cn] \
          $gcc_cv_as_gas_srcdir/Makefile.in ; do
   gcc_cv_gas_version=`sed -n -e 's/^[[ 	]]*VERSION=[[^0-9A-Za-z_]]*\([[0-9]]*\.[[0-9]]*.*\)/VERSION=\1/p' < $f`
   if test x$gcc_cv_gas_version != x; then
--- a/gcc/configure
+++ b/gcc/configure
@@ -21675,7 +21675,7 @@ else
 
 if test -x "$DEFAULT_ASSEMBLER"; then
 	gcc_cv_as="$DEFAULT_ASSEMBLER"
-elif test -f $gcc_cv_as_gas_srcdir/configure.in \
+elif test -f $gcc_cv_as_gas_srcdir/configure.[ai][cn] \
      && test -f ../gas/Makefile \
      && test x$build = x$host; then
 	gcc_cv_as=../gas/as-new$build_exeext
@@ -21748,7 +21748,7 @@ $as_echo "newly built gas" >&6; }
   gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
 for f in $gcc_cv_as_bfd_srcdir/configure \
          $gcc_cv_as_gas_srcdir/configure \
-         $gcc_cv_as_gas_srcdir/configure.in \
+         $gcc_cv_as_gas_srcdir/configure.[ai][cn] \
          $gcc_cv_as_gas_srcdir/Makefile.in ; do
   gcc_cv_gas_version=`sed -n -e 's/^[ 	]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f`
   if test x$gcc_cv_gas_version != x; then
@@ -21838,7 +21838,7 @@ elif test $install_gold_as_default = yes
      && test -f ../gold/Makefile \
      && test x$build = x$host; then
 	gcc_cv_ld=../gold/ld-new$build_exeext
-elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
+elif test -f $gcc_cv_ld_gld_srcdir/configure.[ai][cn] \
      && test -f ../ld/Makefile \
      && test x$build = x$host; then
 	gcc_cv_ld=../ld/ld-new$build_exeext
@@ -21954,7 +21954,7 @@ $as_echo "newly built ld" >&6; }
 	elif test "$ld_is_gold" = yes; then
 	  in_tree_ld_is_elf=yes
 	fi
-	for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
+	for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.[ai][cn] $gcc_cv_ld_gld_srcdir/Makefile.in
 	do
 		gcc_cv_gld_version=`sed -n -e 's/^[ 	]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f`
 		if test x$gcc_cv_gld_version != x; then
@@ -21987,7 +21987,7 @@ if test "${gcc_cv_nm+set}" = set; then :
 
 else
 
-if test -f $gcc_cv_binutils_srcdir/configure.in \
+if test -f $gcc_cv_binutils_srcdir/configure.[ai][cn] \
      && test -f ../binutils/Makefile \
      && test x$build = x$host; then
 	gcc_cv_nm=../binutils/nm-new$build_exeext
@@ -22066,7 +22066,7 @@ if test "${gcc_cv_objdump+set}" = set; t
 
 else
 
-if test -f $gcc_cv_binutils_srcdir/configure.in \
+if test -f $gcc_cv_binutils_srcdir/configure.[ai][cn] \
      && test -f ../binutils/Makefile \
      && test x$build = x$host; then
 	# Single tree build which includes binutils.
@@ -22138,7 +22138,7 @@ if test "${gcc_cv_readelf+set}" = set; t
 
 else
 
-if test -f $gcc_cv_binutils_srcdir/configure.in \
+if test -f $gcc_cv_binutils_srcdir/configure.[ai][cn] \
      && test -f ../binutils/Makefile \
      && test x$build = x$host; then
 	# Single tree build which includes binutils.
--- gcc-4.9.3/gcc/configure.ac	2015-05-12 10:55:54.000000000 +0200
+++ 4.9.3/gcc/configure.ac	2015-07-14 10:45:36.000000000 +0200
@@ -2085,7 +2085,7 @@ m4_pattern_allow([AS_FOR_TARGET])dnl
 AS_VAR_SET_IF(gcc_cv_as,, [
 if test -x "$DEFAULT_ASSEMBLER"; then
 	gcc_cv_as="$DEFAULT_ASSEMBLER"
-elif test -f $gcc_cv_as_gas_srcdir/configure.in \
+elif test -f $gcc_cv_as_gas_srcdir/configure.[ai][cn] \
      && test -f ../gas/Makefile \
      && test x$build = x$host; then
 	gcc_cv_as=../gas/as-new$build_exeext
@@ -2174,7 +2174,7 @@ elif test $install_gold_as_default = yes
      && test -f ../gold/Makefile \
      && test x$build = x$host; then
 	gcc_cv_ld=../gold/ld-new$build_exeext
-elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
+elif test -f $gcc_cv_ld_gld_srcdir/configure.[ai][cn] \
      && test -f ../ld/Makefile \
      && test x$build = x$host; then
 	gcc_cv_ld=../ld/ld-new$build_exeext
@@ -2238,7 +2238,7 @@ if test "$gcc_cv_ld" = ../ld/ld-new$buil
 	elif test "$ld_is_gold" = yes; then
 	  in_tree_ld_is_elf=yes
 	fi
-	for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
+	for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.[ai][cn] $gcc_cv_ld_gld_srcdir/Makefile.in
 	do
 changequote(,)dnl
 		gcc_cv_gld_version=`sed -n -e 's/^[ 	]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f`
@@ -2271,7 +2271,7 @@ AC_SUBST(ORIGINAL_LD_GOLD_FOR_TARGET)
 # Figure out what nm we will be using.
 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
 AS_VAR_SET_IF(gcc_cv_nm,, [
-if test -f $gcc_cv_binutils_srcdir/configure.in \
+if test -f $gcc_cv_binutils_srcdir/configure.[ai][cn] \
      && test -f ../binutils/Makefile \
      && test x$build = x$host; then
 	gcc_cv_nm=../binutils/nm-new$build_exeext
@@ -2303,7 +2303,7 @@ esac
 
 # Figure out what objdump we will be using.
 AS_VAR_SET_IF(gcc_cv_objdump,, [
-if test -f $gcc_cv_binutils_srcdir/configure.in \
+if test -f $gcc_cv_binutils_srcdir/configure.[ai][cn] \
      && test -f ../binutils/Makefile \
      && test x$build = x$host; then
 	# Single tree build which includes binutils.
@@ -2328,7 +2328,7 @@ fi
 
 # Figure out what readelf we will be using.
 AS_VAR_SET_IF(gcc_cv_readelf,, [
-if test -f $gcc_cv_binutils_srcdir/configure.in \
+if test -f $gcc_cv_binutils_srcdir/configure.[ai][cn] \
      && test -f ../binutils/Makefile \
      && test x$build = x$host; then
 	# Single tree build which includes binutils.