Add -Wstack-usage to the gcc warning flags list, but only if using a sufficiently recent version of gcc.

bfd	* warning.m4 (GCC_WARN_CFLAGS): Only add -Wstack-usage if using a
	sufficiently recent version of GCC.
	* configure: Regenerate.

others	* configure: Regenerate.

15 files changed, 171 insertions, 8 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index ffafbf6..6e393a3 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2016-03-22  Nick Clifton  <nickc@redhat.com>
+
+	* warning.m4 (GCC_WARN_CFLAGS): Only add -Wstack-usage if using a
+	sufficiently recent version of GCC.
+	* configure: Regenerate.
+
 2016-03-22  Alan Modra  <amodra@gmail.com>
 
 	PR 19851
diff --git a/bfd/configure b/bfd/configure
index de5f36d..d03b996 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -12223,7 +12223,10 @@ fi
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-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
 /* end confdefs.h.  */
 __GNUC__
@@ -12237,6 +12240,21 @@ 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 conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-4]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144"
+fi
+rm -f conftest*
+
+
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -12264,7 +12282,7 @@ fi
 
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
-    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror -Wstack-usage=262144"
+    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
     NO_WERROR="-Wno-error"
 fi
 
diff --git a/bfd/warning.m4 b/bfd/warning.m4
index 0e838f6..028d079 100644
--- a/bfd/warning.m4
+++ b/bfd/warning.m4
@@ -21,9 +21,16 @@ AC_DEFUN([AM_BINUTILS_WARNINGS],[
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
+
+# Add -Wshadow if the compiler is a sufficiently recent version of GCC.
 AC_EGREP_CPP([^[0-3]$],[__GNUC__],,GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wshadow")
 
+# Add -Wstack-usage if the compiler is a sufficiently recent version of GCC.
+AC_EGREP_CPP([^[0-4]$],[__GNUC__],,GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144")
+
+
 AC_ARG_ENABLE(werror,
   [  --enable-werror         treat compile warnings as errors],
   [case "${enableval}" in
@@ -49,7 +56,7 @@ fi
 
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
-    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror -Wstack-usage=262144"
+    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
     NO_WERROR="-Wno-error"
 fi
 
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 805c6d8..0694a58 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,7 @@
+2016-03-22  Nick Clifton  <nickc@redhat.com>
+
+	* configure: Regenerate.
+
 2016-03-21  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* readelf.c (decode_ARC_machine_flags): Handle nps400.
diff --git a/binutils/configure b/binutils/configure
index a36b30b..6ff4708 100755
--- a/binutils/configure
+++ b/binutils/configure
@@ -11941,7 +11941,10 @@ _ACEOF
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-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
 /* end confdefs.h.  */
 __GNUC__
@@ -11955,6 +11958,21 @@ 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 conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-4]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144"
+fi
+rm -f conftest*
+
+
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -11982,7 +12000,7 @@ fi
 
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
-    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror -Wstack-usage=262144"
+    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
     NO_WERROR="-Wno-error"
 fi
 
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 25c0ee6..43e467e 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,7 @@
+2016-03-22  Nick Clifton  <nickc@redhat.com>
+
+	* configure: Regenerate.
+
 2016-03-21  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* testsuite/gas/arc/nps400-0.d: New file.
diff --git a/gas/configure b/gas/configure
index 6c43279..11e6ed4 100755
--- a/gas/configure
+++ b/gas/configure
@@ -11714,7 +11714,10 @@ using_cgen=no
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-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
 /* end confdefs.h.  */
 __GNUC__
@@ -11728,6 +11731,21 @@ 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 conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-4]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144"
+fi
+rm -f conftest*
+
+
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -11755,7 +11773,7 @@ fi
 
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
-    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror -Wstack-usage=262144"
+    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
     NO_WERROR="-Wno-error"
 fi
 
diff --git a/gold/ChangeLog b/gold/ChangeLog
index 0052c0b..c3b4577 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,7 @@
+2016-03-22  Nick Clifton  <nickc@redhat.com>
+
+	* configure: Regenerate.
+
 2016-03-21  Cary Coutant  <ccoutant@gmail.com>
 
 	PR gold/19842
diff --git a/gold/configure b/gold/configure
index 811a370..7fe771c 100755
--- a/gold/configure
+++ b/gold/configure
@@ -6687,7 +6687,10 @@ fi
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-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
 /* end confdefs.h.  */
 __GNUC__
@@ -6701,6 +6704,21 @@ 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 conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-4]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144"
+fi
+rm -f conftest*
+
+
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -6728,7 +6746,7 @@ fi
 
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
-    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror -Wstack-usage=262144"
+    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
     NO_WERROR="-Wno-error"
 fi
 
diff --git a/gprof/ChangeLog b/gprof/ChangeLog
index a23abcc..14b430d 100644
--- a/gprof/ChangeLog
+++ b/gprof/ChangeLog
@@ -1,3 +1,7 @@
+2016-03-22  Nick Clifton  <nickc@redhat.com>
+
+	* configure: Regenerate.
+
 2016-01-17  Alan Modra  <amodra@gmail.com>
 
 	* configure: Regenerate.
diff --git a/gprof/configure b/gprof/configure
index 79813e0..77bfe7f 100755
--- a/gprof/configure
+++ b/gprof/configure
@@ -12097,7 +12097,10 @@ fi
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-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
 /* end confdefs.h.  */
 __GNUC__
@@ -12111,6 +12114,21 @@ 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 conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-4]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144"
+fi
+rm -f conftest*
+
+
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -12138,7 +12156,7 @@ fi
 
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
-    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror -Wstack-usage=262144"
+    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
     NO_WERROR="-Wno-error"
 fi
 
diff --git a/ld/ChangeLog b/ld/ChangeLog
index eda1986..92a71b7 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,7 @@
+2016-03-22  Nick Clifton  <nickc@redhat.com>
+
+	* configure: Regenerate.
+
 2016-03-21  Nick Clifton  <nickc@redhat.com>
 
 	* emultempl/msp430.em: Replace use of alloca with call to xmalloc.
diff --git a/ld/configure b/ld/configure
index 4d8f237..572faa7 100755
--- a/ld/configure
+++ b/ld/configure
@@ -15540,7 +15540,10 @@ fi
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-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
 /* end confdefs.h.  */
 __GNUC__
@@ -15554,6 +15557,21 @@ 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 conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-4]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144"
+fi
+rm -f conftest*
+
+
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -15581,7 +15599,7 @@ fi
 
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
-    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror -Wstack-usage=262144"
+    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
     NO_WERROR="-Wno-error"
 fi
 
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 811450d..b0fec5e 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,7 @@
+2016-03-22  Nick Clifton  <nickc@redhat.com>
+
+	* configure: Regenerate.
+
 2016-03-21  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* arc-nps400-tbl.h: New file.
diff --git a/opcodes/configure b/opcodes/configure
index a130b84..da03f50 100755
--- a/opcodes/configure
+++ b/opcodes/configure
@@ -11504,7 +11504,10 @@ fi
 # Set the 'development' global.
 . $srcdir/../bfd/development.sh
 
+# Default set of GCC warnings to enable.
 GCC_WARN_CFLAGS="-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
 /* end confdefs.h.  */
 __GNUC__
@@ -11518,6 +11521,21 @@ 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 conftest.$ac_ext") 2>&5 |
+  $EGREP "^[0-4]$" >/dev/null 2>&1; then :
+
+else
+  GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wstack-usage=262144"
+fi
+rm -f conftest*
+
+
+
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
@@ -11545,7 +11563,7 @@ fi
 
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
-    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror -Wstack-usage=262144"
+    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
     NO_WERROR="-Wno-error"
 fi