-dnl remove the extra white space from the cc/c++/ld options
-CPPFLAGS=`echo $WXDEBUG_DEFINE $INCLUDES $CPPFLAGS`
-CFLAGS=`echo $CODE_GEN_FLAGS $EXTRA_CFLAGS $CFLAGS $CWARNINGS`
-CXXFLAGS=`echo $CODE_GEN_FLAGS $CODE_GEN_FLAGS_CXX $EXTRA_CFLAGS $CXXFLAGS $CXXWARNINGS`
+dnl combine everything together and remove the extra white space while doing it
+WXCONFIG_CFLAGS=`echo $WXCONFIG_CFLAGS`
+WXCONFIG_CXXFLAGS=`echo $WXCONFIG_CFLAGS $WXCONFIG_CXXFLAGS`
+
+
+dnl add -I options we use during library compilation
+dnl
+dnl note that the order is somewhat important: wxWidgets headers should
+dnl come first and the one with setup.h should be before $(top_srcdir)/include
+dnl in case the latter contains setup.h used by non-autoconf makefiles (e.g.
+dnl CodeWarrior):
+CPPFLAGS=`echo $WXCONFIG_CPPFLAGS $CPPFLAGS \
+ -I\${top_builddir}lib/wx/include/${TOOLCHAIN_FULLNAME} \
+ -I\${top_srcdir}/include $TOOLKIT_INCLUDE`
+
+C_AND_CXX_FLAGS="$DEBUG_FLAG $PROFILE_FLAG $OPTIMISE_FLAG"
+CFLAGS=`echo $WXCONFIG_CFLAGS $CFLAGS $CWARNINGS $C_AND_CXX_FLAGS`
+CXXFLAGS=`echo $WXCONFIG_CXXFLAGS $CXXFLAGS $C_AND_CXX_FLAGS`
+
+dnl now that we added WXCONFIG_CPPFLAGS to CPPFLAGS we can add the wx-config
+dnl only stuff to it
+WXCONFIG_CPPFLAGS=`echo $WXCONFIG_CPPFLAGS $WXCONFIG_ONLY_CPPFLAGS`
+