configure.ac (noexception_flags): Add -fasynchronous-unwind-tables.

	* configure.ac (noexception_flags): Add -fasynchronous-unwind-tables.
	* configure: Regenerate.

From-SVN: r192062

gcc/ChangeLog

+2012-10-04  Uros Bizjak  <ubizjak@gmail.com>
+
+	* configure.ac (noexception_flags): Add -fasynchronous-unwind-tables.
+	* configure: Regenerate.
+
 2012-10-04  Kaz Kojima  <kkojima@gcc.gnu.org>
 
 	* config/sh/sh.c (sh_can_use_simple_return_p): Return false for
@@ -188,9 +193,8 @@
 	* tree-ssa-sccvn.c (vn_reference_lookup_3): For VECTOR_TYPE
 	CONSTRUCTORs, don't do anything if element type is VECTOR_TYPE,
 	and don't check index.
-	* tree-vect-slp.c (vect_get_constant_vectors): VIEW_CONVERT_EXPR
-	ctor elements first if their type isn't compatible with vector
-	element type.
+	* tree-vect-slp.c (vect_get_constant_vectors): VIEW_CONVERT_EXPR ctor
+	elements first if their type isn't compatible with vector element type.
 
 2012-10-02  Eric Botcazou  <ebotcazou@adacore.com>
 

gcc/configure

@@ -6636,7 +6636,7 @@ fi
 # Disable exceptions and RTTI if building with g++
 noexception_flags=
 save_CFLAGS="$CFLAGS"
-for real_option in -fno-exceptions -fno-rtti; do
+for real_option in -fno-exceptions -fno-rtti -fasynchronous-unwind-tables; do
   # Do the check with the no- prefix removed since gcc silently
   # accepts any -Wno-* option on purpose
   case $real_option in

gcc/configure.ac

@@ -365,7 +365,8 @@ AC_SUBST(warn_cxxflags)
 
 # Disable exceptions and RTTI if building with g++
 ACX_PROG_CC_WARNING_OPTS(
-	m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags])
+	m4_quote(m4_do([-fno-exceptions -fno-rtti -fasynchronous-unwind-tables])),
+		       [noexception_flags])
 	
 # Enable expensive internal checks
 is_release=