if test -f "${tclconfigsh}"; then
		. "${tclconfigsh}"

		CFLAGS="${CFLAGS} ${TCL_INCLUDE_SPEC} -I${TCL_SRC_DIR}/generic -I${tclconfigshdir}"
		CPPFLAGS="${CPPFLAGS} ${TCL_INCLUDE_SPEC} -I${TCL_SRC_DIR}/generic -I${tclconfigshdir}"
		LIBS="${LIBS} ${TCL_LIBS}"

		KITDLL_LIB_VERSION=`echo "${TCL_VERSION}${TCL_PATCH_LEVEL}" | sed 's@\.@@g'`
	fi

	AC_SUBST(CFLAGS)
	AC_SUBST(CPPFLAGS)
	AC_SUBST(LIBS)
	AC_SUBST(KITDLL_LIB_VERSION)

	AC_MSG_RESULT([$tclconfigsh])
])

AC_DEFUN(DC_DO_TK, [
	AC_MSG_CHECKING([path to tk])
	AC_ARG_WITH(tk, AC_HELP_STRING([--with-tk], [directory containing tk configuration (tkConfig.sh)]), [], [

	DC_DO_STATIC_LINK_LIB([C++ Library (Sun Studio)], [-lCstd -lCrun],, [
		DC_DO_STATIC_LINK_LIB([C++ Library (UNIX)], [-lstdc++])
	])
])

AC_DEFUN(DC_FIND_TCLKIT_LIBS, [
	DC_SETUP_TCL_PLAT_DEFS

	dnl We will need this for the Tcl project, which we will always have
	DC_CHECK_FOR_WHOLE_ARCHIVE

	for proj in mk4tcl tcl tclvfs tk; do
		AC_MSG_CHECKING([for libraries required for ${proj}])

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

		AC_MSG_RESULT([${projlibfilesnostub}])

		hide_symbols="1"

		if test "${proj}" = "tcl"; then
			DC_TEST_WHOLE_ARCHIVE_SHARED_LIB([$ARCHS $projlibfilesnostub], [
				projlibfiles="${projlibfilesnostub}"
			], [
				DC_TEST_WHOLE_ARCHIVE_SHARED_LIB([$ARCHS $projlibfiles], [
					projlibfiles="${projlibfiles}"
				])
			])

			hide_symbols="0"
		fi

		if test "${proj}" = "mk4tcl"; then
			if test -n "${projlibfiles}"; then
				AC_DEFINE(KIT_INCLUDES_MK4TCL, [1], [Specify this if you link against mkt4tcl])

				kc_cv_feature_kit_includes_mk4tcl='1'

				DC_DO_STATIC_LINK_LIBCXX
			fi
		fi

		if test "${proj}" = "tk"; then
			if test "${projlibfilesnostub}" != ""; then
				DC_DO_TK
				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
					AC_DEFINE(KITSH_NEED_WINMAIN, [1], [Define if you need WinMain (Windows)])
					CFLAGS="${CFLAGS} -mwindows"
				fi

				hide_symbols="0"
			fi
		fi

		ARCHS="${ARCHS} ${projlibfiles}"

		if test "${hide_symbols}" = "1"; then
			STRIPLIBS="${STRIPLIBS} ${projlibfiles}"
		fi
	done

	AC_SUBST(ARCHS)
	AC_SUBST(STRIPLIBS)
])

AC_DEFUN(DC_SETUP_TCL_PLAT_DEFS, [
	AC_CANONICAL_BUILD
	AC_CANONICAL_HOST
  
	AC_MSG_CHECKING(host operating system)
	AC_MSG_RESULT($host_os)
  
	case $host_os in
		mingw32*)
			CFLAGS="${CFLAGS} -mno-cygwin -mms-bitfields"
			WISH_CFLAGS="-mwindows"

			dnl If we are building for Win32, we need to define "BUILD_tcl" so that
			dnl TCL_STORAGE_CLASS gets defined as DLLEXPORT, to make static linking
			dnl work
			AC_DEFINE(BUILD_tcl, [1], [Define if you need to pretend to be building Tcl (Windows)])
			AC_DEFINE(BUILD_tk, [1], [Define if you need to pretend to be building Tk (Windows)])
			;;
		cygwin*)
			CFLAGS="${CFLAGS} -mms-bitfields"
			WISH_CFLAGS="-mwindows"
			;;
	esac

	AC_SUBST(WISH_CFLAGS)
])

AC_DEFUN(DC_STATIC_LIBGCC, [
	AC_MSG_CHECKING([how to link statically against libgcc])

	SAVELDFLAGS="${LDFLAGS}"
	staticlibgcc=""

		WHOLEARCHIVE=`echo "${wholearchive}" | cut -f 1 -d ' '`
		NOWHOLEARCHIVE=`echo "${wholearchive}" | cut -f 2 -d ' '`
	fi

	AC_SUBST(WHOLEARCHIVE)
	AC_SUBST(NOWHOLEARCHIVE)
])

AC_DEFUN(DC_SETLDRUNPATH, [
	OLD_LDFLAGS="${LDFLAGS}"

	for testldflags in "-Wl,-rpath -Wl,$1" "-Wl,-R -Wl,$1"; do
		LDFLAGS="${OLD_LDFLAGS} ${testldflags}"
		AC_TRY_LINK([#include <stdio.h>], [ return(0); ], [
			LDRUNPATH="$LDRUNPATH $testldflags"

			break
		])
	done

	LDFLAGS="${OLD_LDFLAGS}"

	AC_SUBST(LDRUNPATH)
])