#
# Include the TEA standard macro set
#

builtin(include,tclconfig/tcl.m4)

#
# Add here whatever m4 macros you want to define for your package
#
#
AC_DEFUN([LIB_ZLIB],
[ZLIB_CFLAGS=
ZLIB_LDFLAGS=
ZLIB_LIBS=
AC_ARG_WITH([zlib],
    [AC_HELP_STRING([--with-zlib@<:@=PATH@:>@],
        [Set the path of zlib])],
    ZLIB_DIR=$with_zlib,ZLIB_DIR=yes)

    AC_MSG_CHECKING([for zlib location])
    if test x"$ZLIB_DIR" = xyes ; then
         if test -f "./zlib-1.2.2/deflate.o" ; then
            ZLIB_DIR=./zlib-1.2.2
         fi
    fi
    if test x"$ZLIB_DIR" = xyes ; then
        for dir in $prefix /usr/local /usr ; do
            if test -f "$dir/include/zlib.h" ; then
                ZLIB_DIR=$dir
                break
            fi
        done
    fi
    
    if test x"$ZLIB_DIR" = xyes ; then
	# This is probably heresy during configure...
	# Try to copy & build the supplied zlib
	if test -f "./libz" ; then
	    rm ./libz/*
	    rmdir ./libz
	fi
	mkdir ./libz
	cp ${srcdir}/zlib-1.2.2/* ./libz
	cd libz
	./configure --shared
	make
	cd ..
	ZLIB_DIR=./libz
    fi   
    if test x"$ZLIB_DIR" = xyes ; then
	AC_MSG_ERROR([cannot find libz])
    else
        AC_MSG_RESULT([$ZLIB_DIR])
	if test -f "$ZLIB_DIR/deflate.o" ; then 
	    ZLIB_CFLAGS="-I$ZLIB_DIR"
            ZLIB_LDFLAGS="$ZLIB_DIR/adler32.o $ZLIB_DIR/crc32.o \
		$ZLIB_DIR/infback.o $ZLIB_DIR/inflate.o $ZLIB_DIR/uncompr.o \
		$ZLIB_DIR/compress.o $ZLIB_DIR/deflate.o $ZLIB_DIR/gzio.o \
		$ZLIB_DIR/inffast.o $ZLIB_DIR/inftrees.o $ZLIB_DIR/trees.o \
		$ZLIB_DIR/zutil.o"
	else
	    if test x"$ZLIB_DIR" != x/usr ; then
	        ZLIB_CFLAGS="-I$ZLIB_DIR/include"
        	ZLIB_LDFLAGS="-L$ZLIB_DIR/lib -lz"
	    else 
		ZLIB_LDFLAGS="-lz"
	    fi
            zlib_save_LDFLAGS=$LDFLAGS
            LDFLAGS="$ZLIB_LDFLAGS $LDFLAGS"
            AC_CHECK_LIB([z], [deflateBound], [ZLIB_LIBS=-lz],
                [ZLIB_LIBS=no])	    
            LDFLAGS=$zlib_save_LDFLAGS
	    if test x"$ZLIB_LIBS" = xno ; then
		# Try to copy & build the supplied zlib
		if test -f "./libz" ; then
		    rm ./libz/*
		    rmdir ./libz
		fi
		mkdir ./libz
		cp ${srcdir}/zlib-1.2.2/* ./libz
		cd libz
		./configure --shared
		make
		cd ..
		ZLIB_DIR=./libz
		ZLIB_LIBS=""		
	        ZLIB_CFLAGS="-I$ZLIB_DIR"
        	ZLIB_LDFLAGS="$ZLIB_DIR/adler32.o $ZLIB_DIR/crc32.o \
                 $ZLIB_DIR/infback.o $ZLIB_DIR/inflate.o $ZLIB_DIR/uncompr.o \
                 $ZLIB_DIR/compress.o $ZLIB_DIR/deflate.o $ZLIB_DIR/gzio.o \
                 $ZLIB_DIR/inffast.o $ZLIB_DIR/inftrees.o $ZLIB_DIR/trees.o \
                 $ZLIB_DIR/zutil.o"
	    fi
	fi
        AC_DEFINE([HAVE_ZLIB], 1, [Define if zlib is available.])
    fi

AC_SUBST([ZLIB_CFLAGS])
AC_SUBST([ZLIB_LDFLAGS])
AC_SUBST([ZLIB_LIBS])])