$NetBSD$

Make sure toolchain can assemble SSE stuff in addition to having intrinsics.

--- configure.orig	2015-03-28 18:43:34.000000000 +0000
+++ configure
@@ -19578,7 +19578,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_
 #include <smmintrin.h>
 int main () {
     __m128i a = _mm_set1_epi32 (0), b = _mm_set1_epi32 (0), c;
-    c = _mm_max_epu32(a, b);
+    c = _mm_max_epu32(a, b); asm volatile ("movntdqa (%esi),%xmm3\n");
     return 0;
 }
 _ACEOF
@@ -23563,7 +23563,7 @@ if test "x$enable_nine" = xyes; then
     if ! echo "$with_gallium_drivers" | grep -q 'swrast'; then
         as_fn_error $? "nine requires the gallium swrast driver" "$LINENO" 5
     fi
-    if test "x$with_gallium_drivers" == xswrast; then
+    if test "x$with_gallium_drivers" = xswrast; then
         as_fn_error $? "nine requires at least one non-swrast gallium driver" "$LINENO" 5
     fi
     if test "x$enable_dri3" = xno; then
