dnl IR toolkit for tcl/tk
dnl (c) Index Data 1996-2001
dnl See the file LICENSE for details.
dnl $Id: configure.in,v 1.31 2001-12-03 00:31:06 adam Exp $
AC_INIT(ir-tcl.h)
dnl ------ Substitutions
AC_SUBST(CC)
AC_SUBST(TCLLIB)
AC_SUBST(TKLIB)
AC_SUBST(TCLINC)
AC_SUBST(TKINC)
AC_SUBST(SHLIB_CFLAGS)
AC_SUBST(SHLIB_LD)
AC_SUBST(SHLIB_SUFFIX)
AC_SUBST(SHLIB_VERSION)
AC_SUBST(SHLIB_IRTCL)
AC_SUBST(ALL_SPEC)
AC_SUBST(IRCLIENT_SHELL)
dnl
dnl ------ Build root
AC_SUBST(build_root)
AC_ARG_WITH(build-root, [  --with-buildroot        RPM Build root],[build_root=$withval],[build_root=""])
dnl
dnl ------ Preliminary settings
AC_PROG_INSTALL
dnl
dnl ------ YAZ
YAZ_INIT
dnl
dnl ------ look for Tcl
tclconfig=NONE
tryprefix=NONE
AC_ARG_WITH(tclconfig, [  --with-tclconfig=DIR    tclConfig.sh/tkConfig.sh in DIR (example /usr/lib)], [tclconfig=$withval])
if test "x$tclconfig" = xNONE; then
        saveprefix=${prefix}
	AC_PREFIX_PROGRAM(tclsh)
	if test "x$prefix" = xNONE; then
		AC_PREFIX_PROGRAM(tclsh8.3)
	fi
	if test "x$prefix" = xNONE; then
		AC_PREFIX_PROGRAM(tclsh8.2)
	fi
	if test "x$prefix" = xNONE; then
		AC_PREFIX_PROGRAM(tclsh8.1)
	fi
	if test "x$prefix" = xNONE; then
		AC_PREFIX_PROGRAM(tclsh8.0)
	fi
	if test "x$prefix" = xNONE; then
		AC_PREFIX_PROGRAM(tclsh7.6)
	fi
	if test "x$prefix" = xNONE; then
		AC_PREFIX_PROGRAM(tclsh7.5)
	fi
	if test "x$prefix" = xNONE; then
		prefix=/usr/local
	fi
        tclconfig=${prefix}/lib
	tryprefix=${prefix}
        prefix=${saveprefix}
fi
if test -r ${tclconfig}/tclConfig.sh; then
	AC_MSG_CHECKING(for Tcl)
	. ${tclconfig}/tclConfig.sh
	TCLLIB="${TCL_LIB_SPEC} ${TCL_LIBS}"
	if test -d ${TCL_PREFIX}/include/tcl${TCL_VERSION}; then
		TCLINC=-I${TCL_PREFIX}/include/tcl${TCL_VERSION}
	elif test "${TCL_PREFIX}" = "/usr"; then
		TCLINC=""
	else
		TCLINC=-I${TCL_PREFIX}/include
	fi
	RANLIB=$TCL_RANLIB
        SHLIB_CFLAGS=$TCL_SHLIB_CFLAGS
	SHLIB_LD=$TCL_SHLIB_LD
	SHLIB_SUFFIX=$TCL_SHLIB_SUFFIX
	SHLIB_VERSION=$TCL_SHLIB_VERSION
	SHLIB_IRTCL=irtcl${TCL_SHLIB_SUFFIX}
	ALL_SPEC="irtcl${TCL_SHLIB_SUFFIX} libirtcl.a"
	AC_MSG_RESULT($TCL_VERSION)
	CC=$TCL_CC
else
	AC_PROG_CC
        SHLIB_CFLAGS=""
	SHLIB_LD="shared-linker"
	SHLIB_SUFFIX=""
	SHLIB_VERSION=""
	SHLIB_IRTCL="irtcl-shared"
	AC_PROG_RANLIB
	AC_MSG_CHECKING(for Tcl)
	TCL_VERSION=nope
	for i in "" 7.4 7.5 7.6 8.0; do
		if test -r ${tryprefix}/lib/libtcl${i}.a; then
			TCL_VERSION=$i
		fi
	done
	if test "$TCL_VERSION" = nope; then
		AC_MSG_WARN(Didn't find Tcl)
		TCL_LIB_SPEC=-ltcl
		TCLINC=" # -I.. Tcl/Tk include path"
	else
		if test "$TCL_VERSION" = ""; then
			AC_MSG_RESULT(7.3)
		else
			AC_MSG_RESULT($TCL_VERSION)
		fi
		TCL_LIB_SPEC=${tryprefix}/lib/libtcl${TCL_VERSION}.a
		TCLINC=-I${tryprefix}/include
	fi
	TCLLIB="${TCL_LIB_SPEC} ${LIBS} -lm"
	ALL_SPEC="ir-tcl ir-tk"
fi
dnl 


dnl ------ look for Tk
dnl
if test -r ${tclconfig}/tkConfig.sh; then
	AC_MSG_CHECKING(for Tk)
	. ${tclconfig}/tkConfig.sh
	AC_MSG_RESULT($TK_VERSION)
	TKINC=${TK_XINCLUDES}
	TKLIB="${TK_LIB_SPEC} ${TCL_LIB_SPEC} ${TK_LIBS}"
	IRCLIENT_SHELL=wish${TK_VERSION}
else
	AC_MSG_CHECKING(for Tk)
	TK_VERSION=nope
	for i in "" 4.0 4.1 4.2 8.0; do
		if test -r ${tryprefix}/lib/libtk${i}.a; then
			TK_VERSION=$i
		fi
	done
	if test "$TK_VERSION" = nope; then
		AC_MSG_WARN(Didn't find Tk)
		TKLIB=-ltk
	else
		TKLIB=${tryprefix}/lib/libtk${TK_VERSION}.a
		if test "$TK_VERSION" = ""; then
			AC_MSG_RESULT(3.x)
		else
			AC_MSG_RESULT($TK_VERSION)
		fi
		AC_PATH_X
		not_really_there=""
		if test "$no_x" = ""; then
			if test "$x_includes" = ""; then
				AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
			else
				if test ! -r $x_includes/X11/Intrinsic.h; then
					not_really_there="yes"
				fi
			fi
		fi
		if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
			echo checking for X11 header files
			XINCLUDES="# no special path needed"
			AC_TRY_CPP([#include <X11/Intrinsic.h>], , XINCLUDES="nope")
			if test "$XINCLUDES" = nope; then dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/include/X11R4 /usr/X11R5/include /usr/include/X11R5 /usr/openwin/include /usr/X11/include /usr/sww/include"
				for i in $dirs ; do
					if test -r $i/X11/Intrinsic.h; then
						XINCLUDES=" -I$i"
					fi
				done
			fi
		else
			if test "$x_includes" != ""; then
				XINCLUDES=-I$x_includes
			else
				XINCLUDES="# no special path needed"
			fi
		fi
		if test "$XINCLUDES" = nope; then
			echo "Warning:  couldn't find any X11 include files."
			XINCLUDES="# no include files found"
		fi
		if test "$no_x" = yes; then
			XLIBSW=nope
			if test "$XLIBSW" = nope; then
				dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/lib/X11R4 /usr/X11R5/lib /usr/lib/X11R5 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
			for i in $dirs ; do
				if test -r $i/libX11.a; then
					XLIBSW="-L$i -lX11"
				fi
			done
		fi
		else
			if test "$x_libraries" = ""; then
				XLIBSW=-lX11
			else
				XLIBSW="-L$x_libraries -lX11"
			fi
		fi
		if test "$XLIBSW" = nope ; then
			AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow)
		fi
		if test "$XLIBSW" = nope ; then
			echo "Warning:  couldn't find the X11 library archive.  Using -lX11."
			XLIBSW=-lX11
		fi
	fi
	TKINC=$XINCLUDES
	TKLIB="${TKLIB} ${XLIBSW} ${TCLLIB}"
	IRCLIENT_SHELL=ir-tk
fi
AC_OUTPUT(Makefile)