:nl The contents of this file are subject to the Mozilla Public License
dnl Version 1.0 (the "License"); you may not use this file except in
dnl compliance with the License. You may obtain a copy of the License
dnl at http://www.mozilla.org/MPL/
dnl 
dnl Software distributed under the License is distributed on an "AS IS"
dnl basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See 
dnl the License for the specific language governing rights and 
dnl limitations under the License.
dnl 
dnl The Original Code is this file as it was released upon August 6, 1998.
dnl
dnl The Initial Developer of this code under the MPL is Christopher
dnl Seawood, <cls@seawood.org>.  Portions created by Christopher Seawood 
dnl are Copyright (C) 1998 Christopher Seawood.  All Rights Reserved.
dnl
dnl Contributors:
dnl Jamie Zawinski <jwz@jwz.org>	gettimeofday args check
dnl Christopher Blizzard <blizzard@appliedtheory.com>
dnl					gnomefe update & enable-pthreads
dnl
dnl Process this file with autoconf to produce a configure script.
dnl ========================================================

AC_INIT(config/config.mk)
dnl AC_CONFIG_HEADER(include/config.h nsprpub/include/config.h)
AC_CONFIG_AUX_DIR(${srcdir}/build/autoconf)
AC_CANONICAL_SYSTEM

# Set this define to make fixes w/o breaking anything else
AC_DEFINE(USE_AUTOCONF)

d=`pwd`
if [ test "${srcdir}" = "${d}" || test "${srcdir}" = "." ]; then
    AC_ERROR(Building in the srcdir is not supported! Please build from a separate objdir.)
fi
unset d

dnl Set the version number of the libs included with mozilla
dnl ========================================================
MOZJPEG=62
MOZPNG=95

dnl Set various checks
dnl ========================================================
MISSING_X=
MISSING_MOTIF=
MISSING_GTK=

dnl Checks for programs.
dnl ========================================================
AC_PROG_CC
AC_PROG_CXX
AC_PROG_CPP
AC_PROG_CXXCPP
AC_PROG_CC_C_O
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PROG_AWK
AC_PROG_RANLIB

AC_PATH_PROGS(EMACS, xemacs lemacs emacs, :)
AC_PATH_PROGS(PERL, perl5 perl, :)
AC_PATH_PROG(WHOAMI, whoami, :)
AC_PATH_PROG(UNZIP, unzip, :)
AC_PATH_PROG(ZIP, zip, :)

AC_PATH_XTRA

dnl CFLAGS="$CFLAGS $X_CFLAGS"
dnl LDFLAGS="$LDFLAGS $XLDFLAGS"
dnl LIBS="$X_PRE_LIBS $X_EXTRA_LIBS $LIBS"
XLDFLAGS="$X_LIBS"
XLIBS="$X_EXTRA_LIBS"

if [ test ! -z "$x_includes" ]; then
    MOTIF_XINCS="-xif -I$x_includes"
fi

MOTIF_VERSION=`${srcdir}/config/mkdetect/detect_motif.sh -cc $CC $MOTIF_XINCS`
MOTIF_INCLUDES=`${srcdir}/config/mkdetect/detect_motif.sh -cc $CC $MOTIF_XINCS -if`
MOTIF_STATIC_FLAGS=`${srcdir}/config/mkdetect/detect_motif.sh -cc $CC $MOTIF_XINCS -sf`
MOTIF_DYNAMIC_FLAGS=`${srcdir}/config/mkdetect/detect_motif.sh -cc $CC $MOTIF_XINCS -df`
MOTIF_DYNAMIC_PATHS=`${srcdir}/config/mkdetect/detect_motif.sh -cc $CC $MOTIF_XINCS -dp`
MOTIF_REQUIRES_XPM=`${srcdir}/config/mkdetect/detect_motif.sh -cc $CC $MOTIF_XINCS -xpm`

${srcdir}/config/mkdetect/detect_motif.sh --cleanup

if [ test "$GCC" = "yes" ]; then
    GNU_CC=1
fi
if [ test "$GXX" = "yes" ]; then
    GNU_CXX=1
fi

AC_SUBST(GNU_CC)
AC_SUBST(GNU_CXX)

dnl Checks for system specific bits
dnl ========================================================
dnl the qsort routine under solaris is faulty
dnl Linux Alpha needs -mieee for FPU to work correctly
dnl Note this case statement doesn't seem to handle [] as part of a regexp

dnl set the defaults first
dnl ========================================================
MKSHLIB='$(LD) $(DSO_LDOPTS)'
DSO_LDOPTS='-shared -h $(@:$(OBJDIR)/%.so=%.so)'

dnl gcc can come with its own linker so its better to use the pass-thru calls
dnl ========================================================
if test "$GNU_CC" = 1; then
    MKSHLIB='$(CC) $(DSO_LDOPTS)'
    DSO_LDOPTS='-shared -Wl,-h -Wl,$(@:$(OBJDIR)/%.so=%.so)'
fi

dnl now the exceptions
dnl ========================================================
case "$target" in
*-*-solaris*) 
	AC_DEFINE(BROKEN_QSORT)
        DSO_LDOPTS='-G -h $(@:$(OBJDIR)/%.so=%.so)' ;;

alpha-*-linux*)
	CFLAGS="$CFLAGS -mieee" ;;

*-freebsd*)
	DSO_LDOPTS="-Bshareable $DSO_LDOPTS" ;;

esac

dnl Checks for typedefs, structures, and compiler characteristics.
dnl ========================================================
AC_C_CONST
AC_C_INLINE
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_STRUCT_ST_BLKSIZE
AC_STRUCT_ST_RDEV
AC_STRUCT_TM
AC_STRUCT_TIMEZONE

dnl Checks for header files.
dnl ========================================================
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_HEADER_TIME
AC_CHECK_HEADERS(fcntl.h limits.h malloc.h paths.h strings.h unistd.h)
AC_CHECK_HEADERS(sys/bittypes.h sys/file.h sys/ioctl.h sys/time.h)
AC_CHECK_HEADERS(getopt.h ioctl.h sys/cdefs.h filio.h systeminfo.h)

dnl Checks for library functions.
dnl ========================================================
AC_FUNC_ALLOCA
AC_PROG_GCC_TRADITIONAL
AC_FUNC_MEMCMP
AC_FUNC_MMAP
dnl AC_FUNC_SETVBUF_REVERSED
AC_TYPE_SIGNAL
AC_FUNC_STRCOLL
AC_FUNC_STRFTIME
AC_FUNC_UTIME_NULL
AC_FUNC_VFORK
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(ftime getcwd gethostname getwd mkdir mktime putenv rmdir select)
AC_CHECK_FUNCS(socket strcspn strdup strerror strspn strstr strtol strtoul)
AC_CHECK_FUNCS(uname qsort snprintf waitid fork1 remainder lchown)

AC_MSG_CHECKING(how to call gettimeofday)
AC_CACHE_VAL(ac_cv_gettimeofday_args,
 [AC_TRY_COMPILE([#include <stdlib.h>
                  #include <sys/time.h>],
                 [struct timeval tv; struct timezone tzp;
                  gettimeofday(&tv, &tzp);],
                 [ac_gettimeofday_args=2],
                 [AC_TRY_COMPILE([#include <stdlib.h>
                                  #include <sys/time.h>],
                                 [struct timeval tv; gettimeofday(&tv);],
                                 [ac_gettimeofday_args=1],
                                 [ac_gettimeofday_args=0])])
  ac_cv_gettimeofday_args=$ac_gettimeofday_args])
ac_gettimeofday_args=$ac_cv_gettimeofday_args
if test $ac_gettimeofday_args = 1 ; then
  AC_DEFINE(HAVE_GETTIMEOFDAY)
  AC_MSG_RESULT(one argument)
elif test $ac_gettimeofday_args = 2 ; then
  AC_DEFINE(HAVE_GETTIMEOFDAY)
  AC_DEFINE(GETTIMEOFDAY_TWO_ARGS)
  AC_MSG_RESULT(two arguments)
else
  AC_MSG_RESULT(unknown)
fi

dnl Checks for specific (libc) global variables
AC_MSG_CHECKING(for sys_errlist/sys_nerr)
AC_CACHE_VAL(ac_cv_syserrlist,
 [AC_TRY_COMPILE([#include <stdio.h>
                  #include <errno.h>],
                 [char *foo = sys_errlist[sys_nerr-1];],
                 [ac_syserrlist=true],
                 [ac_syserrlist=false])
  ac_cv_syserrlist=$ac_syserrlist])
ac_syserrlist=$ac_cv_syserrlist
if test $ac_syserrlist = true ; then
  AC_DEFINE(HAVE_SYSERRLIST)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi  

dnl Checks for libraries.
dnl ========================================================
AC_CHECK_LIB(c, strcpy)
AC_CHECK_LIB(m, atan)
AC_CHECK_LIB(dl, dlopen)
AC_CHECK_LIB(resolv, res_gethostbyaddr)
AC_CHECK_LIB(socket, getnetbyaddr)
AC_CHECK_LIB(util, login)
AC_CHECK_LIB(nsl, xdr_string)
AC_CHECK_LIB(C, demangle)
AC_CHECK_LIB(elf, elf_rawdata)
AC_CHECK_LIB(intl, textdomain)
AC_CHECK_LIB(posix4, shm_open)
AC_CHECK_LIB(w, iswupper)
AC_CHECK_LIB(l, yywrap,,
    AC_CHECK_LIB(fl, yywrap))

dnl Replace `main' with a function in -lC_r:
dnl AC_CHECK_LIB(C_r, main)
dnl Replace `main' with a function in -lSgm:
dnl AC_CHECK_LIB(Sgm, main)
dnl Replace `main' with a function in -laudio:
dnl AC_CHECK_LIB(audio, main)
dnl Replace `main' with a function in -lc_r:
dnl AC_CHECK_LIB(c_r, main)
dnl Replace `main' with a function in -ldld:
dnl AC_CHECK_LIB(dld, main)
dnl Replace `main' with a function in -ldnet_stub:
dnl AC_CHECK_LIB(dnet_stub, main)
dnl Replace `main' with a function in -lgen:
dnl AC_CHECK_LIB(gen, main)
dnl Replace `main' with a function in -lhash:
dnl AC_CHECK_LIB(hash, main)
dnl Replace `main' with a function in -lip6:
dnl AC_CHECK_LIB(ip6, main)
dnl Replace `main' with a function in -lipc:
dnl AC_CHECK_LIB(ipc, main)
dnl Replace `main' with a function in -lmalloc_cv:
dnl AC_CHECK_LIB(malloc_cv, main)
dnl Replace `main' with a function in -lPW:
dnl AC_CHECK_LIB(PW, main)
dnl Replace `main' with a function in -lots:
dnl AC_CHECK_LIB(ots, main)
dnl Replace `main' with a function in -lrt:
dnl AC_CHECK_LIB(rt, main)
dnl Replace `main' with a function in -lsvld:
dnl AC_CHECK_LIB(svld, main)

dnl Mozilla specific options
dnl ========================================================
dnl nglayout only supports building with one toolkit
dnl so ignore everything after the first ,
AC_ARG_ENABLE(toolkit,
[  --enable-toolkit=\$val	  enable \$val fe (defaults to gtk)],
    [MOZ_TOOLKIT=`echo "$enableval" | sed -e "s/,.*//g" `], 
    MOZ_TOOLKIT=USE_DEFAULT)

if [ test "$MOZ_TOOLKIT" = "USE_DEFAULT" ]; then
    res=`echo $target_os| grep -c "^Rhapsody"`
    if [ test $res != 0 ]; then
	MOZ_TOOLKIT="rhapsody"
    else
	MOZ_TOOLKIT="gtk"
    fi
fi

OS_TARGET=`uname -s`

AC_ARG_ENABLE(shared,
[  --disable-shared        disable building of internal shared libs],
	[if test "$enableval" = "no"; then
	    NO_SHARED_LIB=1
	fi] )

AC_ARG_ENABLE(static,
[  --disable-static        disable building of internal static libs (broken)],
	[if test "$enableval" = "no"; then
	    NO_STATIC_LIB=1
	fi] )

AC_ARG_ENABLE(crypto,
[  --enable-crypto	  enable use of SSL (untested)],
	[if test "$enableval" = "yes"; then
	    MOZ_SECURITY=1
	else
	    MOZ_SECURITY=
	fi],
	[MOZ_SECURITY= ])

AC_ARG_ENABLE(netcast,
[  --enable-netcast	  enable use of netcast (untested)],
	[if test "$enableval" = "yes"; then
	    MOZ_NETCAST=1
	fi ] )

AC_ARG_ENABLE(java,
[  --enable-java           enable use of java applets (untested)],
	[if test "$enableval" = "yes"; then
	    MOZ_JAVA=1
	    FULL_STATIC_BUILD=
	    NO_SHARED_LIB=
	fi] )

AC_ARG_ENABLE(oji,
[  --enable-oji            enable use of Open JVM Interface],
	[if test "$enableval" = "yes"; then
	    MOZ_OJI=1
	    FULL_STATIC_BUILD=
	    NO_SHARED_LIB=
	fi] )

AC_ARG_ENABLE(debug,
[  --enable-debug	  enable debug symbols],
	[if test "$enableval" = yes; then
	    MOZ_DEBUG=1 CFLAGS="$CFLAGS -g"
	fi] )

AC_ARG_ENABLE(profile,
[  --enable-profile	  enable profiling (solaris only)],
	[if test "$enableval" = "yes"; then
	    MOZILLA_GPROF=1
	fi] )

AC_ARG_ENABLE(mailnews,
[  --enable-mailnews       enable Mail & News (broken)],
	[if test "$enableval" = "yes"; then
	    MOZ_DARK=1
	fi] )

AC_ARG_ENABLE(editor,
[  --enable-editor         enable editor],
	[if test "$enableval" = "yes"; then
	    MOZ_EDITOR=1
	fi] )

AC_ARG_ENABLE(asserts,
[  --disable-asserts       disable asserts during debugging],
	[if test "$enableval" = "no"; then
	    UNIX_SKIP_ASSERTS=1
	fi] )

AC_ARG_ENABLE(async-dns,
[  --disable-async-dns     disable separate dns thread],
	[if test "$enableval" = "no"; then
	    NO_UNIX_ASYNC_DNS=1
	fi] )

AC_ARG_ENABLE(tests,
[  --enable-tests          enable test stubs],
	[if test "$enableval" = "yes"; then
	    ENABLE_TESTS=1
	fi])

AC_ARG_ENABLE(homedir,
[  --enable-homedir=\$val   set the homedir to \$val],
	[ res=`echo $enableval | grep -c "\/"`
	    if [ test $res != 0 ]; then
		AC_MSG_ERROR("Homedir must be single relative path.")
	    else 
		MOZ_USER_DIR=\\\"$enableval\\\"
	    fi], 
	MOZ_USER_DIR='\".mozilla\"' )

AC_ARG_ENABLE(smart-mail,
[  --enable-smart-mail     enable HTML/RDF-based client-side mail (untested)],
	[if test "$enableval" = "yes"; then
	    MOZ_SMART_MAIL=1
	fi])

AC_ARG_ENABLE(dom,
[  --enable-dom            enable Level-1 Document Object Model support ],
	[if test "$enableval" = "yes"; then
    	    AC_DEFINE(DOM)
	    MOZ_DOM=1
	fi] )

AC_ARG_ENABLE(mail-compose,
[  --enable-mail-compose   enable old Messenger mail composer ],
	[if test "$enableval" = "yes"; then
	    MOZ_MAIL_COMPOSE=1
	    MOZ_EDITOR=1
	fi])

NO_UNIX_LDAP=1
AC_ARG_ENABLE(ldap,
[  --enable-ldap           enable ldap ],
	[if test "$enableval" = "yes"; then
	    NO_UNIX_LDAP=
	fi] )

AC_SUBST(OS_TARGET)
AC_SUBST(MOZ_TOOLKIT)
AC_SUBST(MOZ_SECURITY)
AC_SUBST(MOZ_NETCAST)
AC_SUBST(MOZ_JAVA)
AC_SUBST(MOZ_OJI)
AC_SUBST(MOZ_DEBUG)
AC_SUBST(MOZILLA_GPROF)
AC_SUBST(MOZ_DARK)
AC_SUBST(MOZ_EDITOR)
AC_SUBST(UNIX_SKIP_ASSERTS)
AC_SUBST(NO_UNIX_ASYNC_DNS)
AC_SUBST(NO_SHARED_LIB)
AC_SUBST(NO_STATIC_LIB)
AC_SUBST(ENABLE_TESTS)
AC_SUBST(MOZ_USER_DIR)
AC_SUBST(MOZ_SMART_MAIL)
AC_SUBST(MOZ_DOM)
AC_SUBST(MOZ_MAIL_COMPOSE)
AC_SUBST(FULL_STATIC_BUILD)
AC_SUBST(NO_UNIX_LDAP)

dnl Checks for X libraries.
dnl Ordering is important.
dnl Xt is dependent upon SM as of X11R6
dnl ========================================================
_SAVE_LDFLAGS="$LDFLAGS"
LDFLAGS="$XLDFLAGS $LDFLAGS"
AC_CHECK_LIB(X11, XDrawLines, [XLIBS="-lX11 $XLIBS"],
	[MISSING_X="$MISSING_X -lX11"], $XLIBS)
AC_CHECK_LIB(Xext, XextAddDisplay, [XLIBS="-lXext $XLIBS"],
	[MISSING_X="$MISSING_X -lXext"], $XLIBS)
AC_CHECK_LIB(ICE, IceFlush, [XLIBS="-lICE $XLIBS"],, $XLIBS)
AC_CHECK_LIB(SM, SmcCloseConnection, [XLIBS="-lSM $XLIBS"],, $XLIBS)
AC_CHECK_LIB(Xt, XtFree, [XLIBS="-lXt $XLIBS"],
	[MISSING_X="$MISSING_X -lXt"], $XLIBS)
AC_CHECK_LIB(Xmu, XmuLookupString, [XLIBS="-lXmu $XLIBS"],
	[MISSING_X="$MISSING_X -lXmu"], $XLIBS)
LDFLAGS="$_SAVE_LDFLAGS"

dnl Check for toolkit libs
dnl ========================================================
res=`echo :$MOZ_TOOLKIT | grep -c "motif"`
if [ test $res != 0 ]; then
    if [ test "$MOTIF_REQUIRES_XPM" = "True" || test "$MOTIF_VERSION" = "2.1" ]; then
        _SAVE_LDFLAGS="$LDFLAGS"
    	LDFLAGS="$XLDFLAGS $LDFLAGS"
	if [ test "$MOTIF_REQUIRES_XPM" = "True" ]; then
	    AC_CHECK_LIB(Xpm, XpmWriteFileFromImage, 
		TK_MOTIF_LIBS="-lXpm $TK_MOTIF_LIBS", 
		[MISSING_MOTIF="-lXpm $MISSING_MOTIF"], $XLIBS)
	fi
	if [ test "$MOTIF_VERSION" = "2.1" ]; then
	    AC_CHECK_LIB(Xp, XpGetPrinterList, 
		TK_MOTIF_LIBS="-lXp $TK_MOTIF_LIBS",
		[MISSING_MOTIF="-lXp $MISSING_MOTIF"], $XLIBS)
	fi
	TK_MOTIF_LIBS="$XLDFLAGS $TK_MOTIF_LIBS"
	LDFLAGS="$_SAVE_LDFLAGS"
    fi

    if [ test "$MOTIF_STATIC_LIB" = "unknown" && test "$MOTIF_DYNAMIC_LIB" = "unknown" ]; then
	AC_ERROR("Cannot find neither dynamic nor static motif libraries.")
    fi

    # Get rid of offending error values
    if test "$MOTIF_DYNAMIC_PATHS" = "unknown"; then 
	MOTIF_DYNAMIC_PATHS=
    fi

    if test "$MOTIF_DYNAMIC_FLAGS" = "unknown"; then 
	MOTIF_DYNAMIC_FLAGS=
    fi

    if test "$MOTIF_STATIC_FLAGS" = "unknown"; then 
	MOTIF_STATIC_FLAGS=
    fi

    if test "$MOTIF_INCLUDE_DIR" = "unknown"; then
	MOTIF_INCLUDE_DIR=
    fi

    AC_ARG_WITH(static-motif,
    [  --with-static-motif     link motif statically if possible],
	sysstaticmotif=$withval)

    if [ test "$sysstaticmotif" != "yes" ]; then
	_SAVE_LDFLAGS="$LDFLAGS"
    	LDFLAGS="$MOTIF_DYNAMIC_PATHS $XLDFLAGS $LDFLAGS"
    	AC_CHECK_LIB(Xm, XmStringCreate, 
	    TK_MOTIF_LIBS="$MOTIF_DYNAMIC_PATHS $MOTIF_DYNAMIC_FLAGS $TK_MOTIF_LIBS",
	    [MISSING_MOTIF="$MOTIF_DYNAMIC_FLAGS $MISSING_MOTIF"], 
	    $MOTIF_DYNAMIC_PATHS $TK_MOTIF_LIBS $XLIBS)
	LDFLAGS="$_SAVE_LDFLAGS"
    else
    	AC_CHECK_LIB(Xm, XmStringCreate, 
	    TK_MOTIF_LIBS="$MOTIF_STATIC_FLAGS $TK_MOTIF_LIBS",
	    [MISSING_MOTIF="$MOTIF_STATIC_FLAGS $MISSING_MOTIF"], 
	    $TK_MOTIF_LIBS $XLIBS)
    fi

    TK_MOTIF_CFLAGS="$MOTIF_INCLUDES"
fi

res=`echo :$MOZ_TOOLKIT | grep -c "gtk"`
if [ test $res != 0 ]; then
    AC_CHECK_LIB(gtk, gtk_widget_set, 
	[TK_GTK_LIBS="`gtk-config --libs`" TK_GTK_CFLAGS="`gtk-config --cflags`" ],
	[MISSING_GTK="-lgtk -lgtk_widget_set"],
	`gtk-config --libs`)
fi

AC_SUBST(TK_GTK_CFLAGS)
AC_SUBST(TK_GTK_LIBS)
AC_SUBST(TK_MOTIF_CFLAGS)
AC_SUBST(TK_MOTIF_LIBS)

XCFLAGS="$X_CFLAGS"

AC_SUBST(XCFLAGS)
AC_SUBST(XLDFLAGS)
AC_SUBST(XLIBS)

dnl system JPEG support
dnl ========================================================
AC_ARG_WITH(jpeg,
[  --with-jpeg=\$dir        use system libjpeg in \$dir if more recent],
	JPEG_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="-I${JPEG_DIR}/include $CFLAGS"
LDFLAGS="-L${JPEG_DIR}/lib $LDFLAGS"
if test "$JPEG_DIR" = no; then
    SYSTEM_JPEG=
else
    AC_CHECK_LIB(jpeg, jpeg_destroy_compress, [SYSTEM_JPEG=1 JPEG_LIBS="-ljpeg $JPEG_LIBS"], SYSTEM_JPEG=, $JPEG_LIBS)
fi

if [ test "$SYSTEM_JPEG" = 1 ]; then
    LIBS="$JPEG_LIBS $LIBS"
    AC_TRY_RUN( 
	#include <stdio.h>
	#include <sys/types.h>
	#include <jpeglib.h>
	int main () {
	    #if JPEG_LIB_VERSION >= $MOZJPEG
		exit(0);
	    #else
		exit(1);
	    #endif
	}
	, SYSTEM_JPEG=1, [SYSTEM_JPEG= JPEG_CFLAGS= JPEG_LIBS=], SYSTEM_JPEG= ) 
    rm -f core
fi 
CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS
LIBS=$_SAVE_LIBS

if [ test -n "${JPEG_DIR}" && test -d "${JPEG_DIR}"  && test "$SYSTEM_JPEG" = 1]; then
    JPEG_CFLAGS="-I${JPEG_DIR}/include"
    JPEG_LIBS="-L${JPEG_DIR}/lib ${JPEG_LIBS}"
fi

dnl system ZLIB support
dnl ========================================================
AC_ARG_WITH(zlib,
[  --with-zlib=\$dir        use system libz in \$dir],
	ZLIB_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
CFLAGS="-I${ZLIB_DIR}/include $CFLAGS"
LDFLAGS="-L${ZLIB_DIR}/lib $LDFLAGS"
if test "$ZLIB_DIR" = no; then
    SYSTEM_ZLIB=
else
    AC_MSG_CHECKING("for zlib.h")
    AC_TRY_COMPILE([#include "zlib.h"], [], 
	[result="yes" SYSTEM_ZLIB=1],
	[result="no" SYSTEM_ZLIB=])
    AC_MSG_RESULT("$result")
fi
if [ test "$SYSTEM_ZLIB" = 1 ]; then
    AC_CHECK_LIB(z, gzread, [SYSTEM_ZLIB=1 ZLIB_LIBS="-lz $ZLIB_LIBS"], 
	[SYSTEM_ZLIB= ZLIB_CFLAGS= ZLIB_LIBS=], $ZLIB_LIBS)
fi
CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS

if [ test -n "${ZLIB_DIR}" && test -d "${ZLIB_DIR}" && test "$SYSTEM_ZLIB" = 1 ]; then
    ZLIB_CFLAGS="-I${ZLIB_DIR}/include"
    ZLIB_LIBS="-L${ZLIB_DIR}/lib ${ZLIB_LIBS}"
fi

dnl system PNG Support
dnl ========================================================
AC_ARG_WITH(png, 
[  --with-png=\$dir         use system libpng in \$dir if more recent],
        PNG_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="-I${PNG_DIR}/include $ZLIB_CFLAGS $CFLAGS"
LDFLAGS="-L${PNG_DIR}/lib $ZLIB_LIBS -lz $LDFLAGS"
if test "$PNG_DIR" = no; then
    SYSTEM_PNG=
else
    AC_CHECK_LIB(png, png_get_valid, [SYSTEM_PNG=1 PNG_LIBS="-lpng $PNG_LIBS"], SYSTEM_PNG=, $PNG_LIBS)
fi
if [ test "$SYSTEM_PNG" = 1 ]; then
    LIBS="$PNG_LIBS $LIBS"
    AC_TRY_RUN(
	#include <stdio.h>
	#include <sys/types.h>
	#include <png.h>
	int main () {
	    #if PNG_LIBPNG_VER >= $MOZPNG
		exit(0);
	    #else
		exit(1);
	    #endif
	}
	, SYSTEM_PNG=1, [SYSTEM_PNG= PNG_CFLAGS= PNG_LIBS=], SYSTEM_PNG= ) 
    rm -f core
fi
CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS
LIBS=$_SAVE_LIBS

if [ test -n "${PNG_DIR}" && test -d "${PNG_DIR}" && test "$SYSTEM_PNG" = 1 ]; then
    PNG_CFLAGS="-I${PNG_DIR}/include"
    PNG_LIBS="-L${PNG_DIR}/lib ${PNG_LIBS}"
fi

dnl system NSPR support
dnl we always use the system NSPR from now on...this option
dnl tells where to find nspr rather than whether to use it
dnl ========================================================
AC_ARG_WITH(pthreads,
[  --with-pthreads         use system pthread library ],
        [if test "$withval" = "yes"; then
	    AC_CHECK_LIB(pthread, pthread_create, 
		NSPR_LIBS="-lpthread $NSPR_LIBS" USE_PTHREADS=1)
        fi] )

AC_ARG_WITH(nspr,
[  --with-nspr=\$dir        location of nspr headers and libraries],
	NSPR_DIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="$CFLAGS -I${NSPR_DIR}/include"
LDFLAGS="$LDFLAGS -L${NSPR_DIR}/lib $NSPR_LIBS"

AC_MSG_CHECKING("for PR_GetCurrentThread in -lnspr21")
LIBS="-lnspr21 $NSPR_LIBS $LIBS"
AC_TRY_RUN(
	#include <stdio.h>
	#include <nspr.h>
	int main () {
	    PRThread *dummy = PR_GetCurrentThread();
	    exit(0);
	}
	, [NSPR_LIBS="-lnspr21 $NSPR_LIBS" result="yes"],
	[_NSPR_NEEDS_THREAD_LIB=1 result="no"], 
	[_NSPR_NEEDS_THREAD_LIB=1 result="no"] )
rm -f core
AC_MSG_RESULT("$result")

dnl XXX - Is this really the best way to do this check? - cls
if [ test "$_NSPR_NEEDS_THREAD_LIB" = 1 ]; then

LIBS=$_SAVE_LIBS
case "$target" in
*-*-linux*) 
	AC_CHECK_LIB(pthread, pthread_create, 
		NSPR_LIBS="-lpthread $NSPR_LIBS") ;;
alpha-*-osf*)
	CFLAGS="$CFLAGS -pthread" 
	_SAVE_CFLAGS="$_SAVE_CFLAGS -pthread" ;;
esac

AC_MSG_CHECKING("for PR_GetCurrentThread in -lnspr21 with thread lib")
    LIBS="-lnspr21 $NSPR_LIBS $LIBS"
    AC_TRY_RUN(
	#include <stdio.h>
	#include <nspr.h>
	int main () {
	    PRThread *dummy = PR_GetCurrentThread();
	    exit(0);
	}
	, [NSPR_LIBS="-lnspr21 $NSPR_LIBS" result="yes"],
	[MISSING_NSPR="$MISSING_NSPR -lnspr21" result="no"], 
	[MISSING_NSPR="$MISSING_NSPR -lnspr21" result="no"] )
    rm -f core
AC_MSG_RESULT("$result")
fi

dnl AC_CHECK_LIB(nspr21, PR_GetUniqueIdentity, NSPR_LIBS="-lnspr21 $NSPR_LIBS",
dnl	[MISSING_NSPR="$MISSING_NSPR -lnspr21"], $NSPR_LIBS)

AC_CHECK_LIB(plc21, PL_CreateOptState, NSPR_LIBS="-lplc21 $NSPR_LIBS",
	[MISSING_NSPR="$MISSING_NSPR -lplc21"], $NSPR_LIBS)
AC_CHECK_LIB(plds21, PL_VectorAdd, NSPR_LIBS="-lplds21 $NSPR_LIBS",
	[MISSING_NSPR="$MISSING_NSPR -lplds21"], $NSPR_LIBS)

CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS
LIBS=$_SAVE_LIBS

if [ test -n "${NSPR_DIR}" && test -d "${NSPR_DIR}" ]; then
    NSPR_CFLAGS="-I${NSPR_DIR}/include"
    NSPR_LIBS="-L${NSPR_DIR}/lib ${NSPR_LIBS}"
fi

AC_SUBST(SYSTEM_JPEG)
AC_SUBST(SYSTEM_PNG)
AC_SUBST(SYSTEM_ZLIB)

AC_SUBST(JPEG_CFLAGS)
AC_SUBST(JPEG_LIBS)
AC_SUBST(ZLIB_CFLAGS)
AC_SUBST(ZLIB_LIBS)
AC_SUBST(PNG_CFLAGS)
AC_SUBST(PNG_LIBS)
AC_SUBST(NSPR_CFLAGS)
AC_SUBST(NSPR_LIBS)

AC_SUBST(CFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(LIBS)

AC_SUBST(MKSHLIB)
AC_SUBST(DSO_LDOPTS)

dnl Check for missing components
if [ test "$MISSING_X" != "" ]; then
   AC_MSG_ERROR([ Could not find the following libraries: $MISSING_X ]);
fi

if [ test "$MISSING_GTK" != "" ]; then
   AC_MSG_ERROR([ Could not find the following libraries: $MISSING_GTK ]);
fi

if [ test "$MISSING_MOTIF" != "" ]; then
   AC_MSG_ERROR([ Could not find the following libraries: $MISSING_MOTIF ]);
fi

if [ test "$MISSING_NSPR" != "" ]; then
    AC_MSG_ERROR([Could not find standard nspr headers or libraries: $MISSING_NSPR]);
fi

NG_MAKEFILES="
Makefile
base/Makefile
base/public/Makefile
base/src/Makefile
base/src/motif/Makefile
base/src/rhapsody/Makefile
base/src/gtk/Makefile
base/tests/Makefile
config/Makefile
config/autoconf.mk
config/mkdepend/Makefile
config/mkdetect/Makefile
config/ports/Makefile
dbm/Makefile
dbm/include/Makefile
dbm/src/Makefile
dbm/tests/Makefile
dom/Makefile
dom/public/Makefile
dom/public/base/Makefile
dom/public/coreDom/Makefile
dom/public/coreEvents/Makefile
dom/public/css/Makefile
dom/public/events/Makefile
dom/public/html/Makefile
dom/src/Makefile
dom/src/base/Makefile
dom/src/build/Makefile
dom/src/coreDOM/Makefile
dom/src/css/Makefile
dom/src/events/Makefile
dom/src/html/Makefile
dom/src/jsurl/Makefile
dom/tools/Makefile
gfx/Makefile
gfx/public/Makefile
gfx/src/Makefile
gfx/src/gtk/Makefile
gfx/src/motif/Makefile
gfx/src/rhapsody/Makefile
gfx/tests/Makefile
htmlparser/Makefile
htmlparser/robot/Makefile
htmlparser/src/Makefile
include/Makefile
jpeg/Makefile
js/Makefile
js/jsd/Makefile
js/jsd/classes/Makefile
js/src/Makefile
js/src/fdlibm/Makefile
js/src/liveconnect/Makefile
js/src/liveconnect/classes/Makefile
js/src/xpcom/Makefile
layout/Makefile
layout/base/Makefile
layout/base/public/Makefile
layout/base/src/Makefile
layout/base/tests/Makefile
layout/build/Makefile
layout/events/Makefile
layout/events/public/Makefile
layout/events/src/Makefile
layout/html/Makefile
layout/html/base/Makefile
layout/html/base/src/Makefile
layout/html/content/Makefile
layout/html/content/public/Makefile
layout/html/content/src/Makefile
layout/html/document/Makefile
layout/html/document/src/Makefile
layout/html/forms/Makefile
layout/html/forms/public/Makefile
layout/html/forms/src/Makefile
layout/html/style/Makefile
layout/html/style/public/Makefile
layout/html/style/src/Makefile
layout/html/table/Makefile
layout/html/table/src/Makefile
layout/html/tests/Makefile
layout/tools/Makefile
lib/Makefile
lib/liblayer/Makefile
lib/liblayer/include/Makefile
lib/liblayer/src/Makefile
lib/libpwcac/Makefile
lib/xp/Makefile
modules/Makefile
modules/libimg/Makefile
modules/libimg/classes/Makefile
modules/libimg/classes/netscape/Makefile
modules/libimg/classes/netscape/libimg/Makefile
modules/libimg/png/Makefile
modules/libimg/public/Makefile
modules/libimg/src/Makefile
modules/libpref/Makefile
modules/libpref/admin/Makefile
modules/libpref/l10n/Makefile
modules/libpref/public/Makefile
modules/libpref/src/Makefile
modules/libreg/Makefile
modules/libreg/include/Makefile
modules/libreg/src/Makefile
modules/libutil/Makefile
modules/libutil/public/Makefile
modules/libutil/src/Makefile
modules/oji/Makefile
modules/oji/public/Makefile
modules/oji/src/Makefile
modules/plugin/Makefile
modules/plugin/nglsrc/Makefile
modules/plugin/public/Makefile
modules/plugin/src/Makefile
modules/plugin/test/Makefile
modules/security/Makefile
modules/security/freenav/Makefile
modules/zlib/Makefile
modules/zlib/src/Makefile
nav-java/Makefile
nav-java/stubs/Makefile
nav-java/stubs/include/Makefile
nav-java/stubs/jri/Makefile
nav-java/stubs/src/Makefile
network/Makefile
network/cache/Makefile
network/cache/nu/Makefile
network/cache/nu/include/Makefile
network/cache/nu/public/Makefile
network/cache/nu/src/Makefile
network/client/Makefile
network/cnvts/Makefile
network/cstream/Makefile
network/main/Makefile
network/mimetype/Makefile
network/module/Makefile
network/module/tests/Makefile
network/protocol/Makefile
network/protocol/about/Makefile
network/protocol/callback/Makefile
network/protocol/certld/Makefile
network/protocol/dataurl/Makefile
network/protocol/file/Makefile
network/protocol/ftp/Makefile
network/protocol/gopher/Makefile
network/protocol/http/Makefile
network/protocol/imap4/Makefile
network/protocol/js/Makefile
network/protocol/ldap/Makefile
network/protocol/mailbox/Makefile
network/protocol/marimba/Makefile
network/protocol/nntp/Makefile
network/protocol/pop3/Makefile
network/protocol/remote/Makefile
network/protocol/smtp/Makefile
network/util/Makefile
sun-java/Makefile
sun-java/stubs/Makefile
sun-java/stubs/include/Makefile
sun-java/stubs/jri/Makefile
sun-java/stubs/src/Makefile
view/Makefile
view/public/Makefile
view/src/Makefile
webshell/Makefile
webshell/public/Makefile
webshell/src/Makefile
webshell/tests/Makefile
webshell/tests/viewer/Makefile
widget/Makefile
widget/public/Makefile
widget/src/Makefile
widget/src/build/Makefile
widget/src/motif/Makefile
widget/src/rhapsody/Makefile
widget/src/gtk/Makefile
widget/src/xpwidgets/Makefile
widget/tests/Makefile
widget/tests/scribble/Makefile
widget/tests/widget/Makefile
xpcom/Makefile
xpcom/public/Makefile
xpcom/src/Makefile
xpcom/tests/Makefile
xpcom/tests/dynamic/Makefile
xpfe/Makefile
xpfe/xpviewer/Makefile
xpfe/xpviewer/src/Makefile
xpfe/xpviewer/public/Makefile"

AC_OUTPUT($NG_MAKEFILES)