AC_DEFINE(BUILD_tk, [1], [Define if you need to pretend to be building Tk (Windows)])
			;;
		cygwin*)
			CFLAGS="${CFLAGS} -mms-bitfields"
			;;
	esac
])

AC_DEFUN(DC_TEST_WHOLE_ARCHIVE_SHARED_LIB, [
	SAVE_LIBS="${LIBS}"

	LIBS="-Wl,--whole-archive $1 -Wl,--no-whole-archive ${SAVE_LIBS}"
	AC_LINK_IFELSE(
		AC_LANG_PROGRAM([[
			]], [[
			]]
		),
		[
			LIBS="${SAVE_LIBS}"

			$2
		], [
			LIBS="${SAVE_LIBS}"

			$3
		]
	)
])

AC_DEFUN(DC_FIND_TCLKIT_LIBS, [
	DC_SETUP_TCL_PLAT_DEFS

	WISH_CFLAGS=""

	for proj in tcl tclvfs tk; do
		AC_MSG_CHECKING([for libraries required for ${proj}])

		libdir="../../../${proj}/inst"
		libfiles="`find "${libdir}" -name '*.a' 2>/dev/null | tr "\n" ' '`"
		libfilesnostub="`find "${libdir}" -name '*.a' 2>/dev/null | grep -v 'stub' | tr "\n" ' '`"

		if test "$proj" = "tcl"; then
			DC_TEST_WHOLE_ARCHIVE_SHARED_LIB([$ARCHS $libfilesnostub], [
				libfiles="${libfilesnostub}"
			], [
				DC_TEST_WHOLE_ARCHIVE_SHARED_LIB([$ARCHS $libfiles], [
					libfiles="${libfiles}"
				])
			])
		fi

		if test "$proj" = "tk"; then

			if test -n "$libfiles"; then
				DC_DO_TK
				DC_TEST_WHOLE_ARCHIVE_SHARED_LIB([$ARCHS $libfilesnostub], [
					libfiles="${libfilesnostub}"
				], [
					DC_TEST_WHOLE_ARCHIVE_SHARED_LIB([$ARCHS $libfiles], [
						libfiles="${libfiles}"
					])
				])

				AC_DEFINE(KIT_INCLUDES_TK, [1], [Specify this if we link statically to Tk])

				if test -n "${TK_VERSION}"; then
					AC_DEFINE_UNQUOTED(KIT_TK_VERSION, "${TK_VERSION}${TK_PATCH_LEVEL}", [Specify the version of Tk])
				fi

				if test "$host_os" = "mingw32msvc" -o "$host_os" = "mingw32"; then