--- configure.ac.orig
+++ configure.ac
@@ -279,10 +279,6 @@ dnl platform/compiler/architecture speci
 dnl **********************************************************************
 
 CURL_CHECK_COMPILER
-CURL_SET_COMPILER_BASIC_OPTS
-CURL_SET_COMPILER_DEBUG_OPTS
-CURL_SET_COMPILER_OPTIMIZE_OPTS
-CURL_SET_COMPILER_WARNING_OPTS
 
 if test "$compiler_id" = "INTEL_UNIX_C"; then
   #