configure: Skip assembly support checks, when assembly is disabled

configure.ac

@@ -314,6 +314,8 @@ if test "x$CXXFLAGS_overridden" = "xno"; then
   AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-implicit-fallthrough"],,[[$CXXFLAG_WERROR]])
 fi
 
+if test "x$use_asm" = "xyes"; then
+
 # Check for optional instruction set support. Enabling these does _not_ imply that all code will
 # be compiled with them, rather that specific objects/libs may use them after checking for runtime
 # compatibility.
@@ -391,6 +393,8 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 )
 CXXFLAGS="$TEMP_CXXFLAGS"
 
+fi
+
 CPPFLAGS="$CPPFLAGS -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS"
 
 AC_ARG_WITH([utils],