libitm: Work around assembler missing AVX insns.

[pf3gnuchains/gcc-fork.git] / libitm / configure.ac

diff --git a/libitm/configure.ac b/libitm/configure.ac
index 7f35b15..7de5cbe 100644 (file)
--- a/libitm/configure.ac
+++ b/libitm/configure.ac
@@ -219,17 +219,25 @@ if test $enable_symvers = gnu; then
            [Define to 1 if GNU symbol versioning is used for libitm.])
 fi
 
+# See if we can emit unwind info in the sjlj stub.
+GCC_AS_CFI_PSEUDO_OP
+
 # Determine the proper ABI type for size_t.
 LIBITM_CHECK_SIZE_T_MANGLING
 
 # Get target configury.
 . ${srcdir}/configure.tgt
+if test -n "$UNSUPPORTED"; then
+  AC_MSG_ERROR([Configuration ${target} is unsupported.])
+fi
+
 CFLAGS="$save_CFLAGS $XCFLAGS"
 
 # Check for __sync_val_compare_and_swap, but only after the target has
 # had a chance to set XCFLAGS.
 LIBITM_CHECK_SYNC_BUILTINS
 LIBITM_CHECK_64BIT_SYNC_BUILTINS
+LIBITM_CHECK_AS_AVX
 
 # Cleanup and exit.
 CFLAGS="$save_CFLAGS"