diff --git a/configure b/configure
index 770ea70..4ddb901 100755
--- a/configure
+++ b/configure
@@ -114,12 +114,6 @@ for opt do
   ;;
   --cc=*) cc=`echo $opt | cut -d '=' -f 2`
   ;;
-  --extra-cflags=*) CFLAGS="${opt#--extra-cflags=}"
-  ;;
-  --extra-ldflags=*) LDFLAGS="${opt#--extra-ldflags=}"
-  ;;
-  --extra-libs=*) extralibs=${opt#--extra-libs=}
-  ;;
   --cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
   ;;
   --enable-gprof) gprof="yes"
@@ -228,6 +222,10 @@ echo "  --source-path=PATH       path of source code [$source_path]"
 echo "  --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]"
 echo "  --sysroot=PREFIX         prepend PREFIX to library/include paths []"
 echo "  --cc=CC                  use C compiler CC [$cc]"
+echo "  --cpu=CPU                crosscompile to (x86 x86-64 c67 il armv4l powerpc mips s390 alpha) [$cpu]"
+echo "  --enable-cross           build crosscompiler for all supported platforms"
+echo "  --enable-mingw32         build crosscompiler for mingw32 (PREFIX=i386-mingw32)"
+echo "  --enable-gprof           use gprof"
 echo "  --with-libgcc            use /lib/libgcc_s.so.1 instead of libtcc1.a"
 echo ""
 #echo "NOTE: The object files are build at the place where configure is launched"