gecko-dev/configure.in

dnl 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>
dnl    gettimeofday args check
dnl
dnl Christopher Blizzard <blizzard@appliedtheory.com>
dnl    gnomefe update & enable-pthreads
dnl
dnl Ramiro Estrugo <ramiro@netscape.com>
dnl    X11 makedepend support
dnl    Insure support.
dnl
dnl Process this file with autoconf to produce a configure script.
dnl ========================================================

AC_PREREQ(2.12)
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

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

dnl Always set this for mozilla.
AC_DEFINE(MOZILLA_CLIENT)

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

dnl Build optimized by default
dnl ========================================================
CFLAGS="${CFLAGS=-O}"
CXXFLAGS="${CXXFLAGS=-O}"

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

dnl Set the minimum version of toolkit libs used by mozilla
dnl ========================================================
GTK_VERSION=1.1.13

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

dnl Check for invalid object directory setup.
dnl    If the tree has already been built in topsrcdir,
dnl    do not allow it to be built in a separate object 
dnl    directory unless the src tree is cleaned up.
dnl ========================================================
_topsrcdir=`cd \`dirname $0\`; pwd`
_objdir=`pwd`

# Check for a separate objdir
if test "$_topsrcdir" != "$_objdir"
then
  # Check for a couple representative files in the source tree
  for file in $_topsrcdir/Makefile $_topsrcdir/config/autoconf.mk; do
    if test -f $file; then
      echo 2>&1
      echo "Error: Your source tree contains the file," 2>&1
      echo "          $file" 2>&1
      echo 2>&1
      echo "       This is an indication that you have built in the source tree." 2>&1
      echo "       The files that were built in the source tree can mess up the" 2>&1
      echo "       separate objdir build in strange and mysterious ways." 2>&1
      echo 2>&1
      echo "       You can clean up the source tree with the following steps:" 2>&1
      echo "         1. cd $_topsrcdir" 2>&1
      echo "         2. gmake realclean; build/autoconf/clean-config.sh" 2>&1
      echo 2>&1
      exit 1
      break
    fi
  done
fi

dnl Checks for programs.
dnl ========================================================
AC_PROG_CC
AC_PROG_CXX
AC_PROG_CC_C_O
if grep "NO_MINUS_C_MINUS_O 1" ./confdefs.h >/dev/null; then
    USING_HCC=1
    _OLDCC=$CC
    _OLDCXX=$CXX
    CC="${srcdir}/build/hcc '$CC'"
    CXX="${srcdir}/build/hcpp '$CXX'"
fi
AC_PROG_CPP
AC_PROG_CXXCPP
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

XLDFLAGS="$X_LIBS"
XLIBS="$X_EXTRA_LIBS"

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 ========================================================
AS=
AS_DASH_C_FLAG='-c'
NS_USE_NATIVE=
DLL_SUFFIX="so"
MKSHLIB='$(LD) $(DSO_LDOPTS)'
DSO_LDOPTS='-shared -h $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
DSO_CFLAGS='-KPIC'

dnl gcc can come with its own linker so it is better to use the pass-thru calls
dnl MKSHLIB_FORCE_ALL is used to force the linker to include all object
dnl files present in an archive. MKSHLIB_UNFORCE_ALL reverts the linker to
dnl normal behavior.
dnl ========================================================
if [ test "$GNU_CC" = 1]; then
    MKSHLIB='$(CXX) $(DSO_LDOPTS)'
    MKSHLIB_FORCE_ALL='-Wl,--whole-archive'
    MKSHLIB_UNFORCE_ALL='-Wl,--no-whole-archive'
    DSO_LDOPTS='-shared -Wl,-h -Wl,$(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
    DSO_CFLAGS='-fPIC'

    # Turn on GNU specific features
    _WARNINGS_CFLAGS="${_WARNINGS_CXXFLAGS} -Wall"
    #_WARNINGS_CFLAGS="${_WARNINGS_CFLAGS} -pedantic"

    _DEFINES_CFLAGS='-include $(DEPTH)/config-defs.h'
    _USE_CPP_INCLUDE_FLAG=1
else
    _DEFINES_CFLAGS='$(ACDEFINES)'
fi

if [ test "$GNU_CXX" = 1]; then
    # Turn on GNU specific features
    _WARNINGS_CXXFLAGS="${_WARNINGS_CXXFLAGS} -Wall"
    #_WARNINGS_CXXFLAGS="${_WARNINGS_CXXFLAGS} -pedantic"

    _DEFINES_CXXFLAGS='-include $(DEPTH)/config-defs.h'
    _USE_CPP_INCLUDE_FLAG=1
else
    _DEFINES_CXXFLAGS='$(ACDEFINES)'
fi

dnl now the exceptions
dnl ========================================================
case "$target" in
*-*-aix*)
	DLL_SUFFIX="so"
	MKSHLIB_FORCE_ALL=''
	MKSHLIB_UNFORCE_ALL=''
	if [ test "$GNU_CC" != 1 ]; then
		DSO_LDOPTS='-ldl -bM:SRE -brtl -berok -bexpall -bnoentry -L$(DIST)/lib'
		DSO_CFLAGS='-DPIC -brtl -O -qnortti -qflag=w:w'
	fi
dnl MKSHLIB='$(LD) $(DSO_LDOPTS)'
	MKSHLIB='/usr/ibmcxx/bin/makeC++SharedLib_r -p1 -brtl -berok --'
	;;

*-*-solaris*) 
    AC_DEFINE(BROKEN_QSORT)
    if test -z "$GNU_CC"; then
       MKSHLIB='$(CXX) $(DSO_LDOPTS)'
       MKSHLIB_FORCE_ALL='-z allextract'
       MKSHLIB_UNFORCE_ALL='-z defaultextract'
	   DSO_LDOPTS='-G -h $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
       AS='/usr/ccs/bin/as'
       AS_DASH_C_FLAG=''

       case `uname -m` in
         sun4u)
           ASFLAGS='-xarch=v8plus -DULTRA_SPARC -P -L -D_ASM -D__STDC__=0'
           ;;
         *)
           ASFLAGS='-xarch=v8 -P -L -D_ASM -D__STDC__=0'
           ;;
       esac

       NS_USE_NATIVE=1
    else
       MKSHLIB='$(CC) $(DSO_LDOPTS)'

dnl    donm: you need to detect that gcc is built to use the gnu
dnl          linker.  You cant assume that here.
dnl
dnl    MKSHLIB_FORCE_ALL='-Wl,--whole-archive'
dnl    MKSHLIB_UNFORCE_ALL='-Wl,--no-whole-archive'
dnl

       MKSHLIB_FORCE_ALL='-Wl,-z -Wl,allextract'
       MKSHLIB_UNFORCE_ALL='-Wl,-z -Wl,defaultextract'

       AS='$(CC)'
       ASFLAGS='$(CFLAGS)'
    fi
    ;;

*-*-sunos*) 
dnl Assumes the native ld is being used.
    DSO_LDOPTS=''
    MKSHLIB='ld $(DSO_LDOPTS)'
    MKSHLIB_FORCE_ALL=''
    MKSHLIB_UNFORCE_ALL=''
    ;;

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

alpha*-*-osf*)
    if [ test "$GNU_CC" = 1 ]; then
        DSO_LDOPTS='-shared -Wl,-soname -Wl,$(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
    else
	CFLAGS="$CFLAGS -std1 -ieee_with_inexact"
	CXXFLAGS="$CXXFLAGS -std1 -ieee_with_inexact"
        DSO_LDOPTS='-shared -expect_unresolved \* -soname $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
        DSO_CFLAGS=
    fi ;;

*-bsdi*)
    case `uname -r` in
	4.*) ;;
	*)
	    DSO_CFLAGS=''
	    DSO_LDOPTS='-r'
	;;
    esac
    ;;

*-freebsd*)
    if test `test -x /usr/bin/objformat && /usr/bin/objformat || echo aout` = "elf"; then
        DLL_SUFFIX="so"
    else
	DLL_SUFFIX="so.1.0"
	DSO_LDOPTS="-shared"
    fi
    if test -z "$GNU_CC"; then
	DSO_LDOPTS="-Bshareable $DSO_LDOPTS"
    fi ;; 

*-netbsd*)
    DLL_SUFFIX="so.1.0"
    DSO_CFLAGS='-fPIC'
    DSO_LDOPTS='-shared -h $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
    MKSHLIB='$(LD) $(DSO_LDOPTS)'
    if test -z "`$CC -E - -dM </dev/null | grep __ELF__`"; then
	DSO_LDOPTS="-Bshareable"
    fi
    if test -n "$LIBRUNPATH"; then
	DSO_LDOPTS="-R$LIBRUNPATH $DSO_LDOPTS"
    fi
    ;;

*-openbsd*)
    DLL_SUFFIX="so.1.0"
    DSO_CFLAGS='-fPIC'
    DSO_LDOPTS='-shared -h $(@:$(OBJDIR)/%.$(DLL_SUFFIX)=%.$(DLL_SUFFIX))'
    MKSHLIB='$(LD) $(DSO_LDOPTS)'
    if test -z "`$CC -E - -dM </dev/null | grep __ELF__`"; then
	DSO_LDOPTS="-Bshareable /usr/lib/c++rt0.o"
    fi
    if test -n "$LIBRUNPATH"; then
	DSO_LDOPTS="-R$LIBRUNPATH $DSO_LDOPTS"
    fi
    ;;

*-hpux*)
    if test -z "$GNU_CC"; then
	DSO_CFLAGS="+Z"
    fi
    DLL_SUFFIX="sl"
    DSO_LDOPTS='-b -E -L$(DIST)/bin $(LDFLAGS)'
    MKSHLIB='$(LD) $(DSO_LDOPTS)'
    ;;

*-irix*)
    AC_DEFINE(IRIX6_3)
    DSO_LDOPTS='-elf -shared'
    MKSHLIB='$(CCC) $(DSO_LDOPTS)'
    MKSHLIB_FORCE_ALL='-all'
    MKSHLIB_UNFORCE_ALL=
    if test "$GCC"x != "yesx"; then
       CFLAGS="$CFLAGS -woff 3262"
    CXXFLAGS="$CXXFLAGS -woff 3262"
    else
       MKSHLIB_FORCE_ALL=-Wl,-all
       MKSHLIB_UNFORCE_ALL=-Wl,-none
    fi
    ;;

esac

dnl Checks for typedefs, structures, and compiler characteristics.
dnl ========================================================
AC_C_CONST
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 filio.h systeminfo.h)

case $target in
*-aix4.3*)
	;;
*)
	AC_CHECK_HEADERS(sys/cdefs.h)
	;;
esac

dnl Checks for libraries.
dnl ========================================================
AC_CHECK_LIB(c_r, gethostbyname_r,,
    AC_CHECK_LIB(c, strcpy))
AC_CHECK_LIB(m, atan)
AC_CHECK_LIB(dl, dlopen)
if [ test -z "$GNU_CXX" ]; then
    AC_CHECK_LIB(C, demangle)
fi
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(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 -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 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_CHECK_FUNCS(localtime_r)

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 By default, turn rtti and exceptions off on g++/egcs
dnl ========================================================
if [ test -n "$GNU_CXX" ]; then

  _MOZ_RTTI_FLAGS=-fno-rtti

  AC_MSG_CHECKING(for C++ exceptions flag)

dnl They changed -f[no-]handle-exceptions to -f[no-]exceptions in g++ 2.8
  AC_CACHE_VAL(ac_cv_cxx_exceptions_flags,
  [echo "int main() { return 0; }" | cat > conftest.C

  _tmp_output="g++-output-$$"

  ${CXX-g++} -fno-handle-exceptions conftest.C > $_tmp_output 2>&1

  if egrep "warning.*renamed" $_tmp_output >/dev/null 2>&1; then
    ac_cv_cxx_exceptions_flags=-fno-exceptions
  else
    ac_cv_cxx_exceptions_flags=-fno-handle-exceptions
  fi

  rm -f $_tmp_output ])

  AC_MSG_RESULT($ac_cv_cxx_exceptions_flags)
  _MOZ_EXCEPTIONS_FLAGS=$ac_cv_cxx_exceptions_flags
fi

dnl Put your C++ language/feature checks below
dnl Is there a way to make AC_TRY_COMPILE use CXX instead of CC?
_SAVE_CC=$CC
CC=$CXX
AC_MSG_CHECKING(for ios::binary)
AC_CACHE_VAL(ac_cv_ios_binary,
 [AC_TRY_COMPILE([#include <iostream.h>]
	         [#include <fstream.h>],
                 [char *buffer = "config.log";
		  fstream *mFileStream=new fstream(buffer, ios::binary);],
                 [ac_ios_binary=true],
                 [ac_ios_binary=false])
  ac_cv_ios_binary=$ac_ios_binary])
ac_ios_binary=$ac_cv_ios_binary
if test $ac_ios_binary = true ; then
  AC_DEFINE(HAVE_IOS_BINARY)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi  


AC_MSG_CHECKING(for ios::bin)
AC_CACHE_VAL(ac_cv_ios_bin,
 [AC_TRY_COMPILE([#include <iostream.h>]
               [#include <fstream.h>],
                 [char *buffer = "config.log";
                fstream *mFileStream=new fstream(buffer, ios::bin);],
                 [ac_ios_bin=true],
                 [ac_ios_bin=false])
  ac_cv_ios_bin=$ac_ios_bin])
ac_ios_bin=$ac_cv_ios_bin
if test $ac_ios_bin = true ; then
  AC_DEFINE(HAVE_IOS_BIN)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi  

AC_CACHE_CHECK(for namespaces,
               ac_cv_cpp_namespaces,
               [AC_TRY_COMPILE(namespace X {},
                               using namespace X;,
                               ac_cv_cpp_namespaces=yes,
                               ac_cv_cpp_namespaces=no)])
if test $ac_cv_cpp_namespaces = yes ; then
   AC_DEFINE(HAVE_CPP_NAMESPACES)
fi


AC_CACHE_CHECK(for C++ \"bool\" keyword,
               ac_cv_cpp_bool,
               [AC_TRY_COMPILE(bool b;,
                               b = true;,
                               ac_cv_cpp_bool=yes,
                               ac_cv_cpp_bool=no)])
if test $ac_cv_cpp_bool = no ; then
   AC_DEFINE(NEEDS_bool)
fi


AC_CACHE_CHECK(for C++ \"explicit\" keyword,
               ac_cv_cpp_explicit,
               [AC_TRY_COMPILE(class X {
                               public: explicit X(int i) : i_(i) {}
                               private: int i_;
                               };,
                               X x(3);,
                               ac_cv_cpp_explicit=yes,
                               ac_cv_cpp_explicit=no)])
if test $ac_cv_cpp_explicit = yes ; then
   AC_DEFINE(HAVE_CPP_EXPLICIT)
fi

AC_CACHE_CHECK(for C++ \"exceptions\",
               ac_cv_cpp_exceptions,
               [AC_TRY_COMPILE(class X { public: X() {} };
                               static void F() { throw X(); },
                               try { F(); } catch(X & e) { },
                               ac_cv_cpp_exceptions=yes,
                               ac_cv_cpp_exceptions=no)])
if test $ac_cv_cpp_exceptions = yes ; then
   AC_DEFINE(HAVE_CPP_EXCEPTIONS)
fi

AC_CACHE_CHECK(for C++ \"using\" keyword,
               ac_cv_cpp_using,
               [AC_TRY_COMPILE(class X { public: int go() {return 3;} };
                               class Y : public X {
                                 private: using X::go;
                               };,
                               X x; Y y;,
                               ac_cv_cpp_using=yes,
                               ac_cv_cpp_using=no)])
if test $ac_cv_cpp_using = yes ; then
   AC_DEFINE(HAVE_CPP_USING)
fi

AC_CACHE_CHECK(for C++ reinterpret_cast,
               ac_cv_cpp_reinterpret_cast,
               [AC_TRY_COMPILE(struct X { int i; };
                               struct Y { int i; };,
                               X x; X*const z = &x;Y*y = reinterpret_cast<Y*>(z);,
                               ac_cv_cpp_reinterpret_cast=yes,
                               ac_cv_cpp_reinterpret_cast=no)])
if test $ac_cv_cpp_reinterpret_cast = yes ; then
   AC_DEFINE(HAVE_CPP_NEW_CASTS)
fi

dnl note that this one is reversed - if the test fails, then
dnl we require implementations of unused methods
AC_CACHE_CHECK(if C++ requires implementation of unused methods,
               ac_cv_cpp_unused_required,
               [AC_TRY_COMPILE(class X {private: void never_called();};,
                               X x;,
                               ac_cv_cpp_unused_required=no,
                               ac_cv_cpp_unused_requires=yes)])
if test $ac_cv_cpp_unused_required = yes ; then
   AC_DEFINE(NEED_CPP_UNUSED_IMPLEMENTATIONS)
fi
    
CC=$_SAVE_CC

dnl End of C++ language/feature checks


dnl Mozilla specific options
dnl ========================================================
dnl The macros used for command line options
dnl are defined in build/autoconf/altoptions.m4.

dnl ========================================================
dnl =
dnl = Components and Features
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Components and Features)

MOZ_ARG_DISABLE_BOOL(async-dns,
[  --disable-async-dns     Disable separate dns thread],
  NO_UNIX_ASYNC_DNS=1)

dnl build mozilla/nsprpub by default
MOZ_BUILD_NSPR=1

MOZ_ARG_DISABLE_BOOL(build-nspr,
[  --disable-build-nspr    Dont build mozilla/nsprpub],
  MOZ_BUILD_NSPR= )

dnl build mozilla/xpfe by default
MOZ_BUILD_XPFE=1

MOZ_ARG_DISABLE_BOOL(build-xpfe,
[  --disable-build-xpfe    Dont build mozilla/xpfe],
  MOZ_BUILD_XPFE= )

MOZ_ARG_ENABLE_BOOL(editor,
[  --enable-editor         Enable editor],
  MOZ_EDITOR=1)

dnl This will be part of the address book
dnl MOZ_ARG_ENABLE_BOOL(ldap,
dnl [  --enable-ldap           Enable LDAP directory access],
dnl [ MOZ_LDAP=1 NO_UNIX_LDAP= ],
dnl [ NO_UNIX_LDAP=1 ])

MOZ_ARG_ENABLE_BOOL(mailnews,
[  --enable-mailnews       Enable Mail & News],
  [ MOZ_MAIL_NEWS=1 ] )

dnl Note: This conflicts with --disable-shared
MOZ_ARG_ENABLE_BOOL(oji,
[  --enable-oji            Enable use of Open JVM Interface],
  [MOZ_OJI=1 FULL_STATIC_BUILD= NO_SHARED_LIB=])

MOZ_ARG_ENABLE_BOOL(tests,
[  --enable-tests          Enable test stubs],
  ENABLE_TESTS=1)

dnl nglayout only supports building with one toolkit
dnl so ignore everything after the first,
dnl nglayout only supports building with one toolkit
dnl so ignore everything after the first ,
MOZ_ARG_ENABLE_STRING(toolkit,
[  --enable-toolkit=\$val   Enable \$val fe (defaults to gtk)],
dnl [Toolkit must be either "gtk" or "Motif" (except on Rhapsody.)],
[ 
  res=`echo $target_os| grep -c "^Rhapsody"`;
  if test "$enableval" != "motif" && test "$enableval" != "gtk" && test $res = 0; then
    AC_MSG_ERROR(Toolkit must be either gtk or motif.)
  else
    MOZ_TOOLKIT=`echo "$enableval" | sed -e "s/,.*//g" `
  fi], 
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

dnl ========================================================
dnl =
dnl = Compiler Options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Compiler Options)

MOZ_ARG_DISABLE_BOOL(asserts,
[  --disable-asserts       Disable asserts during debugging],
  UNIX_SKIP_ASSERTS=1)

MOZ_ARG_ENABLE_BOOL_OR_STRING(debug,
[  --enable-debug          Enable debug symbols],
  [ MOZ_DEBUG=1 CFLAGS="$CFLAGS -g" CXXFLAGS="$CXXFLAGS -g" ],
  [],
  [MOZ_DEBUG_MODULES=`echo $enableval | sed 's|,| |g'` ])

MOZ_ARG_ENABLE_BOOL(md,
[  --enable-md             Use compiler-based dependencies ],
    [  COMPILER_DEPEND=1
       _DEPEND_CFLAGS='-Wp,-MD,$(*D)/.deps/$(*F).pp' ]
)

dnl Make pedantic a flag for now since the builds currently choke on it.
MOZ_ARG_ENABLE_BOOL(pedantic,
[  --enable-pedantic       Issue all warnings demanded by strict ANSI C ],
  [ _WARNINGS_CFLAGS="${_WARNINGS_CFLAGS} -pedantic"
    _WARNINGS_CXXFLAGS="${_WARNINGS_CXXFLAGS} -pedantic" ])

dnl Note: This should not be disabled if --enable-oji is set
MOZ_ARG_DISABLE_BOOL(shared,
[  --disable-shared        Disable building of internal shared libs],
  NO_SHARED_LIB=1)

dnl C++ rtti (g++/egcs only - for now)
dnl Should be smarter and check that the compiler does indeed have rtti
MOZ_ARG_ENABLE_BOOL(cpp-rtti,
[  --enable-cpp-rtti       Enable C++ RTTI ],
    [ _MOZ_RTTI_FLAGS=-frtti ]
)

dnl C++ exceptions (g++/egcs only - for now)
dnl Should be smarter and check that the compiler does indeed have exceptions
MOZ_ARG_ENABLE_BOOL(cpp-exceptions,
[  --enable-cpp-exceptions Enable C++ exceptions ],
    [ _MOZ_EXCEPTIONS_FLAGS=-fexceptions ]
)

dnl ========================================================
dnl =
dnl = Profiling and Instrumenting
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Profiling and Instrumenting)

MOZ_ARG_ENABLE_BOOL(gprof,
[  --enable-gprof          Enable gprof symbols],
  [ _GPROF_CFLAGS="-pg" ])

MOZ_ARG_ENABLE_BOOL(insure,
[  --enable-insure         Enable insure++ instrumentation (linux only)],
  [ MOZ_INSURE="insure" MOZ_INSURIFYING=1 MOZ_INSURE_DIRS="mozilla" MOZ_INSURE_EXCLUDE_DIRS="mozilla/config" ])

MOZ_ARG_WITH_STRING(insure-dirs,
[  --with-insure-dirs=\$dirs Dirs to instrument ],
  MOZ_INSURE_DIRS=$withval )

MOZ_ARG_WITH_STRING(insure-exclude-dirs,
[  --with-insure-exclude-dirs=\$dirs Dirs to not instrument ],
  MOZ_INSURE_EXCLUDE_DIRS="mozilla/config $withval" )

MOZ_ARG_ENABLE_BOOL(profile,
[  --enable-profile        Enable profiling (solaris only)],
  MOZILLA_GPROF=1)

MOZ_ARG_ENABLE_BOOL(wrap-malloc,
[  --enable-wrap-malloc    Wrap malloc calls (gnu linker only) (default=no) ],
  [ if test "$GNU_CC" = 1; then
      WRAP_MALLOC_CFLAGS="${LDFLAGS} -Wl,--wrap -Wl,malloc -Wl,--wrap -Wl,free -Wl,--wrap -Wl,realloc -Wl,--wrap -Wl,__builtin_new -Wl,--wrap -Wl,__builtin_vec_new -Wl,--wrap -Wl,__builtin_delete -Wl,--wrap -Wl,__builtin_vec_delete -Wl,--wrap -Wl,PR_Free -Wl,--wrap -Wl,PR_Malloc -Wl,--wrap -Wl,PR_Calloc -Wl,--wrap -Wl,PR_Realloc"
      MKSHLIB='$(CXX) $(DSO_LDOPTS) $(WRAP_MALLOC_CFLAGS)'
    fi])

MOZ_ARG_WITH_STRING(wrap-malloc,
[  --with-wrap-malloc-=\$dir Location of malloc wrapper library],
  WRAP_MALLOC_LIB=$withval)


dnl ========================================================
dnl =
dnl = Misc. Options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Misc. Options)

MOZ_ARG_ENABLE_STRING(homedir,
[  --enable-homedir=\$val   Set the homedir to \$val],
dnl [ Location of the mozilla user directory (default is ~/.mozilla).],
  [res=`echo $enableval | grep -c "\/"`
  if [ test $res != 0 ]; then
    AC_MSG_ERROR("Homedir must be single relative path.")
  else 
    AC_DEFINE(MOZ_USER_DIR,"$enableval")
  fi], 
  AC_DEFINE(MOZ_USER_DIR,".mozilla") )

MOZ_ARG_ENABLE_BOOL(idltool,
[  --enable-idltool        Build idl tool (default=no) ],
  MOZ_IDL_TOOL=1)

MOZ_ARG_ENABLE_BOOL(xterm-updates,
[  --enable-xterm-updates  Update XTERM titles with current command.],
  MOZ_UPDATE_XTERM=1)

MOZ_ARG_ENABLE_BOOL(js-stubs,
[  --enable-js-stubs       Use XPIDL JavaScript Stubs.],
  AC_DEFINE(XPIDL_JS_STUBS))

dnl ========================================================
dnl =
dnl = Untested or Broken Options
dnl = 
dnl ========================================================
MOZ_ARG_HEADER(Untested or Broken Options)

MOZ_ARG_ENABLE_BOOL(crypto,
[  --enable-crypto         Enable use of SSL (untested)],
  MOZ_SECURITY=1)

dnl Netcaster is dead
dnl MOZ_ARG_ENABLE_BOOL(netcast,
dnl [  --enable-netcast        Enable use of netcast (untested)],
dnl  MOZ_NETCAST=1)

dnl Note: This needs to come after --disable-shared
MOZ_ARG_ENABLE_BOOL(java,
[  --enable-java           Enable use of java applets (untested)],
  [MOZ_JAVA=1 FULL_STATIC_BUILD= NO_SHARED_LIB=])

MOZ_ARG_ENABLE_BOOL(mail-compose,
[  --enable-mail-compose   Enable old Messenger mail composer ],
  [ MOZ_MAIL_COMPOSE=1 MOZ_EDITOR=1 ])

dnl The new mail app is "smart-mail"
dnl MOZ_ARG_ENABLE_BOOL(smart-mail,
dnl [  --enable-smart-mail     Enable HTML/RDF-based client-side mail (untested)],
dnl  MOZ_SMART_MAIL=1)

MOZ_ARG_DISABLE_BOOL(static,
[  --disable-static        Disable building of internal static libs (broken)],
  NO_STATIC_LIB=1)


AC_SUBST(AS)
AC_SUBST(ASFLAGS)
AC_SUBST(AS_DASH_C_FLAG)
AC_SUBST(NS_USE_NATIVE)
AC_SUBST(MOZ_TOOLKIT)
AC_SUBST(MOZ_UPDATE_XTERM)
AC_SUBST(MOZ_SECURITY)
dnl AC_SUBST(MOZ_NETCAST)
AC_SUBST(MOZ_JAVA)
AC_SUBST(MOZ_OJI)
AC_SUBST(MOZ_DEBUG)
AC_SUBST(MOZ_DEBUG_MODULES)
AC_SUBST(MOZILLA_GPROF)
AC_SUBST(MOZ_INSURE)
AC_SUBST(MOZ_INSURE_DIRS)
AC_SUBST(MOZ_INSURE_EXCLUDE_DIRS)
AC_SUBST(MOZ_INSURIFYING)
AC_SUBST(MOZ_MAIL_NEWS)
AC_SUBST(MOZ_BUILD_XPFE)
AC_SUBST(MOZ_BUILD_NSPR)
dnl AC_SUBST(MOZ_LDAP)
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)
dnl AC_SUBST(MOZ_SMART_MAIL)
AC_SUBST(MOZ_DOM)
AC_SUBST(MOZ_MAIL_COMPOSE)
AC_SUBST(FULL_STATIC_BUILD)
AC_SUBST(NO_UNIX_LDAP)
AC_SUBST(MOZ_IDL_TOOL)
AC_SUBST(COMPILER_DEPEND)

dnl Checks for X libraries.
dnl Ordering is important.
dnl Xt is dependent upon SM as of X11R6
dnl ========================================================
if [ test "$no_x" != "yes" ]; then
_SAVE_LDFLAGS="$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 $res != 0 ]; then
if [ test "$no_x" != "yes" ]; then
    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
fi

    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_LIBS="-lXpm $TK_LIBS", 
		[MISSING_MOTIF="-lXpm $MISSING_MOTIF"], $XLIBS)
	fi
	if [ test "$MOTIF_VERSION" = "2.1" ]; then
	    AC_CHECK_LIB(Xp, XpGetPrinterList, 
		TK_LIBS="-lXp $TK_LIBS",
		[MISSING_MOTIF="-lXp $MISSING_MOTIF"], $XLIBS)
	fi
	TK_LIBS="$XLDFLAGS $TK_LIBS"
	LDFLAGS="$_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 $LDFLAGS"
    	AC_CHECK_LIB(Xm, XmStringCreate, 
	    TK_LIBS="$MOTIF_DYNAMIC_PATHS $MOTIF_DYNAMIC_FLAGS $TK_LIBS",
	    [MISSING_MOTIF="$MOTIF_DYNAMIC_FLAGS $MISSING_MOTIF"], 
	    $MOTIF_DYNAMIC_PATHS $TK_LIBS $XLIBS)
	LDFLAGS="$_SAVE_LDFLAGS"
    else
    	AC_CHECK_LIB(Xm, XmStringCreate, 
	    TK_LIBS="$MOTIF_STATIC_FLAGS $TK_LIBS",
	    [MISSING_MOTIF="$MOTIF_STATIC_FLAGS $MISSING_MOTIF"], 
	    $TK_LIBS $XLIBS)
    fi

    TK_CFLAGS="$MOTIF_INCLUDES"
fi

res=`echo :$MOZ_TOOLKIT | grep -c "gtk"`
if [ test $res != 0 ]; then
    AM_PATH_GTK($GTK_VERSION,,
      AC_MSG_ERROR(Test for GTK failed.))

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

    if [ test "$sysstaticgtk" != "yes" ]; then
       TK_LIBS=$GTK_LIBS
    else
       changequote(,)

       GTK_LIBS_LOC=`echo $GTK_LIBS | sed 's/\(.*\)\(-lgtk.*\)/\1/'`

       GTK_STATIC_LOC=`echo $GTK_LIBS | sed 's/^ *-L\([^ ]*\) .*$/\1/'`
       GTK_STATIC=`echo $GTK_LIBS | sed 's/^.*-l\(gtk[^ ]*\) .*/\1/'`
       GDK_STATIC=`echo $GTK_LIBS | sed 's/^.*-l\(gdk[^ ]*\) .*/\1/'`

       GLIB_STATIC_LOC=`echo $GTK_LIBS | sed -e 's/^.*-lgdk[^ ]* *-L\([^ ]*\).*$/\1/' -e 's/^.* -lgdk[^ ]* .*$//'`
       if test -z "$GLIB_STATIC_LOC" ; then
         GLIB_STATIC_LOC=$GTK_STATIC_LOC
       fi
       GMODULE_STATIC=`echo $GTK_LIBS | sed 's/^.*-l\(gmodule[^ ]*\) .*/\1/'`
       GLIB_STATIC=`echo $GTK_LIBS | sed 's/^.*-l\(glib[^ ]*\) .*/\1/'`

       GTK_OTHER_LIBS=`echo $GTK_LIBS | sed 's/^.*-lglib *\(.*\)/\1/'`

       changequote([,])

       TK_LIBS="$GTK_STATIC_LOC/lib${GTK_STATIC}.a"
       TK_LIBS="$TK_LIBS $GTK_STATIC_LOC/lib${GDK_STATIC}.a"
       TK_LIBS="$TK_LIBS $GLIB_STATIC_LOC/lib${GMODULE_STATIC}.a"
       TK_LIBS="$TK_LIBS $GLIB_STATIC_LOC/lib${GLIB_STATIC}.a"
       TK_LIBS="$TK_LIBS $GTK_LIBS_LOC $GTK_OTHER_LIBS"
    fi
    TK_CFLAGS=$GTK_CFLAGS
fi

fi # $no_x

AC_SUBST(GTK_CONFIG)
AC_SUBST(TK_CFLAGS)
AC_SUBST(TK_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 FullCircle/Talkback support (Crash-reporting mechanism)
dnl ==============================================================

AC_ARG_WITH(fullcircle,
[  --with-fullcircle=\$dir        location of FullCircle headers and libraries],

        FULLCIRCLE_DIR=$withval,
        FULLCIRCLE_DIR=no)

if test "$FULLCIRCLE_DIR" = no; then
    FULLCIRCLE_DIR=
else

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="$CFLAGS -I${FULLCIRCLE_DIR}"
LDFLAGS="$LDFLAGS -L${FULLCIRCLE_DIR}"

AC_MSG_CHECKING("for FC_Initialize in -ltalkback");
LIBS="-ltalkback $LIBS"
AC_TRY_LINK([
	#include "fullcircle.h"
        #include <stdio.h>
	],
        [FC_Initialize();
        exit(0);]
        ,[FULLCIRCLE_LIB="-ltalkback $FULLCIRCLE_LIB" result="yes"],
        [MISSING_FULLCIRCLE=1 result="no"])
AC_MSG_RESULT("$result")

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

if [ test -n "$MISSING_FULLCIRCLE" ]; then
    AC_MSG_ERROR([Could not find FullCircle Library]);
fi

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_attr_init, 
		NSPR_LIBS="-lpthread $NSPR_LIBS" USE_PTHREADS=1)
            case "$target" in
            *-*-solaris*) 
                AC_DEFINE(_REENTRANT) ;;
            *-*-linux*) 
                AC_DEFINE(_REENTRANT) ;;
            alpha*-*-osf*)
                if [ test "$GNU_CC" = 1 ]; then
                    AC_DEFINE(_REENTRANT)
                else
                    CFLAGS="$CFLAGS -pthread" 
                    CXXFLAGS="$CXXFLAGS -pthread" 
                fi ;;
            esac
        fi] )

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

AC_ARG_WITH(nsprlib,
[  --with-nsprlib=\$dir        location of nspr libraries],
	NSPR_LIBDIR=$withval)

_SAVE_CFLAGS=$CFLAGS
_SAVE_LDFLAGS=$LDFLAGS
_SAVE_LIBS=$LIBS
CFLAGS="$CFLAGS -I${NSPR_DIR}/include"
if [ test "$NSPR_LIBDIR"x = "x" ]; then
   LDFLAGS="$LDFLAGS -L${NSPR_DIR}/lib $NSPR_LIBS"
else
   LDFLAGS="$LDFLAGS -L${NSPR_LIBDIR} $NSPR_LIBS"
fi

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
*-*-solaris*) 
	AC_CHECK_LIB(pthread, pthread_attr_init, 
		NSPR_LIBS="-lpthread $NSPR_LIBS") ;;
*-*-linux*) 
	AC_CHECK_LIB(pthread, pthread_attr_init, 
		NSPR_LIBS="-lpthread $NSPR_LIBS") ;;
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_GetEvent, 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"
    if [ test "$NSPR_LIBDIR"x != "x" ]; then
        NSPR_LIBS="-L${NSPR_LIBDIR} ${NSPR_LIBS}"
    else
        NSPR_LIBS="-L${NSPR_DIR}/lib ${NSPR_LIBS}"
    fi
fi
dnl End of nspr tests
dnl ========================================================

dnl Echo the CFLAGS to remove extra whitespace.
CFLAGS=`echo \
	$_WARNINGS_CFLAGS \
	$_GPROF_CFLAGS \
	$_DEPEND_CFLAGS \
	$_DEFINES_CFLAGS \
	$CFLAGS`

CXXFLAGS=`echo \
	$_MOZ_RTTI_FLAGS \
	$_MOZ_EXCEPTIONS_FLAGS \
	$_WARNINGS_CXXFLAGS \
	$_GPROF_CFLAGS \
	$_DEPEND_CFLAGS \
	$_DEFINES_CXXFLAGS \
	$CXXFLAGS`

# Clean out '-O' flags if doing a debug build.
if test "$MOZ_DEBUG"
then
  changequote(,)dnl
  CFLAGS=`  echo $CFLAGS   | sed 's/ *-O[^ ]*//g;'`
  CXXFLAGS=`echo $CXXFLAGS | sed 's/ *-O[^ ]*//g;'`
  changequote([,])dnl
fi

dnl Support for X11 makedepend, if found on the system
dnl ========================================================
AC_PATH_PROG(SYSTEM_MAKEDEPEND,makedepend)

AC_SUBST(SYSTEM_MAKEDEPEND)

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(CXXFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(LIBS)

AC_SUBST(WRAP_MALLOC_CFLAGS)
AC_SUBST(WRAP_MALLOC_LIB)
AC_SUBST(MKSHLIB)
AC_SUBST(MKSHLIB_FORCE_ALL)
AC_SUBST(MKSHLIB_UNFORCE_ALL)
AC_SUBST(DSO_CFLAGS)
AC_SUBST(DSO_LDOPTS)
AC_DEFINE_UNQUOTED(MOZ_DLL_SUFFIX, $DLL_SUFFIX)
AC_SUBST(DLL_SUFFIX)

if test "$USING_HCC"; then
   CC='${topsrcdir}/build/hcc'
   CC="$CC '$_OLDCC'"
   CXX='${topsrcdir}/build/hcpp'
   CXX="$CXX '$_OLDCXX'"
   AC_SUBST(CC)
   AC_SUBST(CXX)
fi

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

if test -n "$MISSING_GTK"; then
   AC_MSG_ERROR([ Could not link sample program with the following gtk libraries: $MISSING_GTK ])
fi

if test -n "$MISSING_MOTIF"; then
   AC_MSG_ERROR([ Could not find the following motif libraries: $MISSING_MOTIF ]);
fi
fi # $no_x

if test -n "$MISSING_NSPR"; then
    AC_MSG_ERROR([Could not find the following nspr libraries or could not run sample program: $MISSING_NSPR]);
fi

dnl Set various defines and substitutions
dnl ========================================================
# netlib stuff
AC_DEFINE(MODULAR_NETLIB)
MODULAR_NETLIB=1
AC_SUBST(MODULAR_NETLIB)
if test "$MODULAR_NETLIB" = ""; then
  AC_DEFINE(CookieManagement)
fi

# imagelib
AC_DEFINE(STANDALONE_IMAGE_LIB)
STANDALONE_IMAGE_LIB=1
AC_SUBST(STANDALONE_IMAGE_LIB)

OS_TARGET=`uname -s`
AC_SUBST(OS_TARGET)

if test "$OS_TARGET" = "OS2"; then
  AC_DEFINE(XP_PC)
elif test "$OS_TARGET" = "WINNT"; then
  AC_DEFINE(XP_PC)
else
  AC_DEFINE(XP_UNIX)
  AC_DEFINE(UNIX_EMBED)
  AC_DEFINE(X_PLUGINS)
  AC_DEFINE(UNIX_LDAP)
  AC_DEFINE(UNIX_ASYNC_DNS)
fi

AC_DEFINE(JS_THREADSAFE)
AC_DEFINE(LAYERS)
AC_DEFINE(NETSCAPE)

if test "$MOZ_EDITOR"; then
  AC_DEFINE(NGEDITOR)
fi

# Used for LD_LIBRARY_PATH of run_viewer target
LIBS_PATH=
for lib_arg in $NSPR_LIBS $TK_LIBS; do
  case $lib_arg in
    -L* ) LIBS_PATH="${LIBS_PATH:+$LIBS_PATH:}"`expr $lib_arg : "-L\(.*\)"` ;;
      * ) ;;
  esac
done
AC_SUBST(LIBS_PATH)

dnl Spit out some output
dnl ========================================================

# Save the defines header file before autoconf removes it.
# (Do not add AC_DEFINE calls after this line.)
if test "$_USE_CPP_INCLUDE_FLAG"; then
  CONFIG_DEFS_H=config-defs.h
  # Only write config-defs.h when something changes (or it doesn't exist)
  if test ! -f $CONFIG_DEFS_H \
     || diff confdefs.h $CONFIG_DEFS_H | grep \# > /dev/null; then
    AC_MSG_RESULT("creating $CONFIG_DEFS_H")

    cat > $CONFIG_DEFS_H <<\EOF
/* List of defines generated by configure. Included with preprocessor flag,
 * -include, to avoid long list of -D defines on the compile command-line.
 * Do not edit.
 */
EOF
    cat confdefs.h >> $CONFIG_DEFS_H
  fi
fi

dnl Need to manual make the directories to get around deficiency in AC_OUTPUT
for d in lib modules modules/security; do
   if [ test ! -d $d ]; then rm -f $d; mkdir $d; fi
done

# Load the list of Makefiles to generate.
#   To add new Makefiles, edit allmakefiles.sh.
#   allmakefiles.sh sets the variable, MAKEFILES.
. ${srcdir}/allmakefiles.sh

AC_OUTPUT($MAKEFILES)