first working version for the new build system

m4/ax_gcc_option.m4

@@ -0,0 +1,34 @@
+AC_DEFUN([AX_GCC_OPTION], [
+AC_REQUIRE([AC_PROG_CC])
+
+AC_MSG_CHECKING([if gcc accepts $1 option])
+
+AS_IF([ test "x$GCC" = "xyes" ],[
+AS_IF([ test -z "$3" ],[
+ax_gcc_option_test="int main()
+{
+return 0;
+}"
+],[
+ax_gcc_option_test="$3"
+])
+
+# Dump the test program to file
+cat <<EOF > conftest.c
+$ax_gcc_option_test
+EOF
+
+# Dump back the file to the log, useful for debugging purposes
+AC_TRY_COMMAND(cat conftest.c 1>&AS_MESSAGE_LOG_FD)
+
+AS_IF([ AC_TRY_COMMAND($CC $2 $1 -c conftest.c 1>&AS_MESSAGE_LOG_FD) ],[
+AC_MSG_RESULT([yes])
+$4
+],[
+AC_MSG_RESULT([no])
+$5
+])
+],[
+AC_MSG_RESULT([no gcc available])
+])
+])