suppress sh assembler rejection of instructions based on isa level

we need access to all instructions in order for runtime selection of
atomic model to work correctly. without this patch, some versions of
gcc instruct gas to reject instructions outside the target isa level.

diff --git a/configure b/configure
index d944a47ff43dd527a3cb7ad21f50905c65fd7645..03c0ebe0bfb31794c595f029316695bd09e704d9 100755 (executable)
--- a/configure
+++ b/configure
@@ -556,6 +556,7 @@ test "$ARCH" = "microblaze" && trycppif __MICROBLAZEEL__ "$t" \
 && SUBARCH=${SUBARCH}el
 
 if test "$ARCH" = "sh" ; then
+tryflag CFLAGS_AUTO -Wa,--isa=any
 trycppif __BIG_ENDIAN__ "$t" && SUBARCH=${SUBARCH}eb
 if trycppif "__SH_FPU_ANY__ || __SH4__" "$t" ; then
 # Some sh configurations are broken and replace double with float