-AC_CHECK_TOOLS([AR], [gcc-ar ar], [:])
-AC_CHECK_TOOLS([NM], [gcc-nm nm], [:])
-AC_CHECK_TOOLS([RANLIB], [gcc-ranlib ranlib], [:])
+AC_PROG_CC_C99
+
+AX_COMPILER_VENDOR
+AS_IF([test "x$ax_cv_c_compiler_vendor" = "xgnu"], [
+ AC_CHECK_TOOLS([AR], [gcc-ar ar], [:])
+ AC_CHECK_TOOLS([NM], [gcc-nm nm], [:])
+ AC_CHECK_TOOLS([RANLIB], [gcc-ranlib ranlib], [:])
+])