When building target binaries, ensure that the warning flags selected for the command line match the target compiler.

bfd	* warning.m4 (AC_EGREP_CPP_FOR_BUILD): Introduce macro
	to verify CC_FOR_BUILD compiler.
	(AM_BINUTILS_WARNINGS): Introduce ac_cpp_for_build variable
	and add CC_FOR_BUILD compiler checks.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

binutils	* Makefile.am: Replace AM_CLFAGS with AM_CFLAGS_FOR_BUILD
	when building with CC_FOR_BUILD compiler.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

gas	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.

gold	* Makefile.in: Regenerate.
	* configure: Likewise.
	* testsuite/Makefile.in: Likewise.

gprof	* Makefile.in: Regenerate.
	* configure: Likewise.

ld	* Makefile.in: Regenerate.
	* configure: Likewise.

opcodes	* Makefile.in: Regenerate.
	* configure: Likewise.

3 files changed, 56 insertions, 6 deletions

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 282b476..1613154 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,8 @@
+2016-09-26  Vlad Zakharov  <vzakhar@synopsys.com>
+
+	* Makefile.in: Regenerate.
+	* configure: Likewise.
+
 2016-09-26  Claudiu Zissulescu  <claziss@synopsys.com>
 
 	* arc-ext-tbl.h (EXTINSN2OPF): Define.
diff --git a/opcodes/Makefile.in b/opcodes/Makefile.in
index 80cef60..44e5c04 100644
--- a/opcodes/Makefile.in
+++ b/opcodes/Makefile.in
@@ -267,6 +267,7 @@ STRIP = @STRIP@
 USE_NLS = @USE_NLS@
 VERSION = @VERSION@
 WARN_CFLAGS = @WARN_CFLAGS@
+WARN_CFLAGS_FOR_BUILD = @WARN_CFLAGS_FOR_BUILD@
 WARN_WRITE_STRINGS = @WARN_WRITE_STRINGS@
 XGETTEXT = @XGETTEXT@
 abs_builddir = @abs_builddir@
diff --git a/opcodes/configure b/opcodes/configure
index 252ab2f..031da2f 100755
--- a/opcodes/configure
+++ b/opcodes/configure
@@ -643,6 +643,7 @@ MAINTAINER_MODE_TRUE
 NO_WMISSING_FIELD_INITIALIZERS
 WARN_WRITE_STRINGS
 NO_WERROR
+WARN_CFLAGS_FOR_BUILD
 WARN_CFLAGS
 OTOOL64
 OTOOL
@@ -11150,7 +11151,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11153 "configure"
+#line 11154 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11256,7 +11257,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11259 "configure"
+#line 11260 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11508,8 +11509,12 @@ fi
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Set acp_cpp_for_build variable
+ac_cpp_for_build="$CC_FOR_BUILD -E $CPPFLAGS_FOR_BUILD"
+
 # Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
+GCC_WARN_CFLAGS_FOR_BUILD="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
 
 # Add -Wshadow if the compiler is a sufficiently recent version of GCC.
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -11554,6 +11559,36 @@ fi
 rm -f conftest*
 
 
+# Verify CC_FOR_BUILD to be compatible with waring flags
+
+# Add -Wshadow if the compiler is a sufficiently recent version of GCC.
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__GNUC__
+_ACEOF
+if (eval "$ac_cpp_for_build conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-3]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS_FOR_BUILD="$GCC_WARN_CFLAGS_FOR_BUILD -Wshadow"
+fi
+rm -f conftest*
+
+
+# Add -Wstack-usage if the compiler is a sufficiently recent version of GCC.
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__GNUC__
+_ACEOF
+if (eval "$ac_cpp_for_build conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-4]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS_FOR_BUILD="$GCC_WARN_CFLAGS_FOR_BUILD -Wstack-usage=262144"
+fi
+rm -f conftest*
+
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -11569,6 +11604,7 @@ case "${host}" in
   *-*-mingw32*)
     if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
       GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wno-format"
+      GCC_WARN_CFLAGS_FOR_BUILD="$GCC_WARN_CFLAGS_FOR_BUILD -Wno-format"
     fi
     ;;
   *) ;;
@@ -11582,25 +11618,32 @@ fi
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
     GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
+    GCC_WARN_CFLAGS_FOR_BUILD="$GCC_WARN_CFLAGS_FOR_BUILD -Werror"
     NO_WERROR="-Wno-error"
 fi
 
 if test "${GCC}" = yes ; then
   WARN_CFLAGS="${GCC_WARN_CFLAGS}"
+  WARN_CFLAGS_FOR_BUILD="${GCC_WARN_CFLAGS_FOR_BUILD}"
 fi
 
 # Check whether --enable-build-warnings was given.
 if test "${enable_build_warnings+set}" = set; then :
   enableval=$enable_build_warnings; case "${enableval}" in
-  yes)	WARN_CFLAGS="${GCC_WARN_CFLAGS}";;
+  yes)	WARN_CFLAGS="${GCC_WARN_CFLAGS}"
+        WARN_CFLAGS_FOR_BUILD="${GCC_WARN_CFLAGS_FOR_BUILD}";;
   no)	if test "${GCC}" = yes ; then
 	  WARN_CFLAGS="-w"
+      WARN_CFLAGS_FOR_BUILD="-w"
 	fi;;
   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
-        WARN_CFLAGS="${GCC_WARN_CFLAGS} ${t}";;
+        WARN_CFLAGS="${GCC_WARN_CFLAGS} ${t}"
+        WARN_CFLAGS_FOR_BUILD="${GCC_WARN_CFLAGS_FOR_BUILD} ${t}";;
   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
-        WARN_CFLAGS="${t} ${GCC_WARN_CFLAGS}";;
-  *)    WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`;;
+        WARN_CFLAGS="${t} ${GCC_WARN_CFLAGS}"
+        WARN_CFLAGS_FOR_BUILD="${t} ${GCC_WARN_CFLAGS_FOR_BUILD}";;
+  *)    WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`
+        WARN_CFLAGS_FOR_BUILD=`echo "${enableval}" | sed -e "s/,/ /g"`;;
 esac
 fi
 
@@ -11613,6 +11656,7 @@ fi
 
 
 
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'