#!/usr/bin/perl

$ENV{X11_PREFIX}="/usr/X11" if ($ENV{X11_PREFIX} eq '');
$ENV{CC}="gcc" if ($ENV{CC} eq '');
$ENV{CC_BASE}=$ENV{CC};

$target=shift @ARGV;
$ENV{DESTDIR}=$ENV{DSTROOT};

$python_version=`/usr/bin/python -c 'import sys ; print("%s.%s" % sys.version_info[:2]) ;'`;

if($ENV{MACOSFORGE_RELEASE} eq "YES") {
    $ENV{PYTHONPATH}="$ENV{X11_PREFIX}/lib/python".$python_version.":$ENV{X11_PREFIX}/lib/python".$python_version."/site-packages:$ENV{PYTHONPATH}";
}

sub sys_print {
    $command=shift;
    print "$command\n";
    system $command;
    $retval=$? >> 8;
    die "returned code $retval" if $retval;
}

sub sys_print_nodie {
    $command=shift;
    print "$command\n";
    system $command;
    $retval=$? >> 8;
    print "returned code $retval\n" if $retval;
}

if($target eq 'installsrc') {
    sys_print("tar -cp --exclude .git --exclude .svn --exclude CVS . | tar -pox -C $ENV{SRCROOT}");
    chdir($ENV{SRCROOT});
    foreach $module (glob('*')) {
        next if $module =~ /build/;
        next if $module =~ /Make/;
        next if $module =~ /uvn/;
        next if $module =~ /\./;
        print "installing source for $module\n";
        chdir($module);
        sys_print("../uvn extract && ../uvn patch");
        chdir('..');
    }
    exit();
}

if($target eq 'clean') {
    print "Cleaning out directory $ENV{SRCROOT}\n";
    chdir($ENV{SRCROOT});
    sys_print("find . -name .uvn | xargs rm -rf");
    sys_print("find . -name \"*.gz\" | xargs rm");
    sys_print("find . -name \"*.bz2\" | xargs rm");
    sys_print("find . -name patches | xargs rm -rf");

    # Prune GPL bits we don't use
    sys_print("rm -rf mesa/Mesa-*/progs/ggi/asc-view.c");
    sys_print("rm -rf cairo/cairo-*/util/cairo-trace/COPYING*");
    sys_print("rm -rf cairo/cairo-*/util/cairo-trace/*.[hc]");

    # Bison/yacc-foo that triggers the GPL3 warning, just remake them
    sys_print("rm -rf mesa/Mesa-*/src/mesa/shader/program_parse.tab.[hc]");

    # Leopard's flex isn't recent enough to rebuild this right...
    #sys_print("rm -rf mesa/Mesa-*/src/mesa/shader/lex.yy.c");

    exit();
}

if($target eq 'install') {
    print "Install phase: \n";
    sys_print("mkdir $ENV{DSTROOT}") unless -e $ENV{DSTROOT};
    sys_print("mkdir $ENV{OBJROOT}") unless -e $ENV{OBJROOT};
    $ENV{DESTDIR}=$ENV{DSTROOT};
    
    $prefix=$ENV{X11_PREFIX};

    ($osx_version)=(`sw_vers -productVersion` =~ /(10\.\d)/);

# Must create local aclocal dir or aclocal fails
    $ACLOCAL_LOCALDIR="$ENV{DSTROOT}$prefix/share/aclocal";
    system "mkdir -p $ACLOCAL_LOCALDIR";
    
# The following is required to make aclocal find our .m4 macros
    $ENV{ACLOCAL}="aclocal -I $ACLOCAL_LOCALDIR -I $prefix/share/aclocal -I/usr/local/share/aclocal";
    $ENV{LIBTOOLIZE}="/usr/bin/glibtoolize";
    
# The following is required to make pkg-config find our .pc metadata files
    $ENV{PKG_CONFIG_PATH}="$ENV{DSTROOT}$prefix/share/pkgconfig:$ENV{DSTROOT}$prefix/lib/pkgconfig:$prefix/share/pkgconfig:$prefix/lib/pkgconfig:$ENV{PKG_CONFIG_PATH}";
    
# Set the library path so that locally built libs will be found by apps
    $ENV{LD_LIBRARY_PATH}="$ENV{DSTROOT}$prefix/lib:$prefix/lib/:$ENV{LD_LIBRARY_PATH}";
    
    $ENV{PATH}="$ENV{DSTROOT}$prefix/bin:$prefix/bin:$ENV{PATH}";
    
# Set the default font path for xserver/xorg unless it's already set
    $ENV{FONTPATH}="$prefix/lib/X11/fonts/misc/,$prefix/lib/X11/fonts/Type1/,$prefix/lib/X11/fonts/75dpi/,$prefix/lib/X11/fonts/100dpi/,$prefix/lib/X11/fonts/cyrillic/,$prefix/lib/X11/fonts/TTF/";
    
    foreach $arch (split(/ /,$ENV{RC_ARCHS})) {
	$arch_flags .= " -arch $arch ";
    }

    $ENV{CC}="$ENV{CC} -I$ENV{DSTROOT}$prefix/include/pixman-1 -I$ENV{DSTROOT}$prefix/include/libpng15 -I$ENV{DSTROOT}$prefix/include";
    $ENV{CPPFLAGS}="-D__DEBUG__ -D_FORTIFY_SOURCE=2";
    $ENV{CFLAGS}="-ggdb3 -Os -pipe $arch_flags -Wall -Wformat=2";
    $ENV{LDFLAGS}="-pipe $arch_flags_lib -L$ENV{DSTROOT}$prefix/lib";
    $ENV{MACOSX_DEPLOYMENT_TARGET}=$osx_version;

    build_lib();

    if($ENV{MACOSFORGE_LEO} eq "YES") {
        fix_la_reverse();
    } else {
        nuke_la();
    }

    sys_print_nodie("rm $ENV{DSTROOT}$prefix/lib/*.so.*");
    lipoexec("$ENV{DSTROOT}$prefix/bin/cxpm");
    lipoexec("$ENV{DSTROOT}$prefix/bin/sxpm");
    lipoexec("$ENV{DSTROOT}$prefix/bin/makestrs");
    make_dsyms();

    sys_print("chown -R root:wheel $ENV{DSTROOT}/$prefix/share/doc/");
    sys_print("/Developer/Makefiles/bin/compress-man-pages.pl -d $ENV{DSTROOT}/$prefix/share/man/ man1 man2 man3 man4 man5 man6 man7 man8 man9");
}

sub get_workdir {
    foreach (glob('*')) {
	if(-e "$_/configure") {
	    return $_;
	}
    }
    die "Unable to determine workdir";
}

sub build {
    ($module)=@_;
    $m1=$module;

    print("build($module): ");
    
    die "$module not found" unless -e "$ENV{SRCROOT}/$module";
    chdir ("$ENV{SRCROOT}/$module");
    $full_path="$module/".get_workdir();
    sys_print("mkdir -p $ENV{OBJROOT}/$full_path");
    sys_print("ditto $ENV{SRCROOT}/$full_path $ENV{OBJROOT}/$full_path");

    if($module eq 'mesa') {
        chdir("$ENV{OBJROOT}/$full_path/src/mesa/shader");
        sys_print("make");

        chdir("$ENV{OBJROOT}/$full_path");
        sys_print("make darwin CC='$ENV{CC}' EXTRA_CFLAGS='-I$ENV{DSTROOT}$prefix/lib' EXTRA_LDFLAGS='-L$ENV{DSTROOT}$prefix/lib' INSTALL_DIR='$prefix' -j".`sysctl -n hw.activecpu`);

        sys_print("make install DESTDIR=$ENV{DSTROOT} INSTALL_DIR='$prefix'");

        # This is needed for the 1.5 server to build with GLX support
        sys_print("mkdir -p $ENV{DSTROOT}$prefix/include/GL/internal");
        sys_print("cp include/GL/internal/dri_interface.h $ENV{DSTROOT}$prefix/include/GL/internal");
        sys_print("chown -R root:wheel $ENV{DSTROOT}$prefix/include/GL/internal");
        sys_print("chmod 644 $ENV{DSTROOT}$prefix/include/GL/internal/*.h");
    } else {
        chdir("$ENV{OBJROOT}/$full_path");
        sys_print("rm -f m4/libtool.m4 m4/lt*.m4") if(-f "m4/libtool.m4");
        # libpng >= 1.4.4 requires glibtool2, but for some reason we still fail with glibtool-2.2.4
        sys_print("autoreconf -fvi") unless($module eq 'cairo' || $module eq 'libXft' || $module eq 'libpng' || $module eq 'libpng14');

        print "Configuring...\n";
        
        $conf_flags=" --prefix=$prefix --disable-static --disable-dependency-tracking --disable-nls ";

        $conf_flags=$conf_flags."--cache-file=$ENV{OBJROOT}/configure.cache " unless($module eq 'pixman');

        $conf_flags_path=$ENV{SRCROOT}."/$dir/$module/conf_flags";
        $post_config_path=$ENV{SRCROOT}."/$dir/$module/post_config";

        if(-e $conf_flags_path) {
            $conf_flags .= `cat $conf_flags_path`;
            chomp $conf_flags;
        }

        if($ENV{MACOSFORGE_RELEASE} eq "YES") {
            if($ENV{MACOSFORGE_BUILD_DOCS} ne "YES") {
                $conf_flags .= " --disable-specs --disable-devel-docs --disable-docs ";
            }
            sys_print("sed -i.bak 's/sysconfig.get_python_lib(\\([^,]\\),0/sysconfig.get_python_lib(\\1,1/g' configure");
        } else {
            $conf_flags .= " --disable-specs --disable-devel-docs ";
            sys_print(q{sed -i.bak 's|from distutils import sysconfig; print sysconfig.get_python_lib(.*,.*,prefix=.*)|import sys, os;print os.path.join(sys.prefix, \\\\"Extras/X11\\\\")|' configure});
        }

        # libtool.m4 checks stderr from the linker to determine these, so they get incorrectly set to "no"
        $ENV{lt_cv_ld_force_load}="yes";
        $ENV{lt_cv_apple_cc_single_mod}="yes";

        sys_print("./configure $conf_flags");
        sys_print("make -j".`sysctl -n hw.activecpu`);

        if($module eq 'libXaw8' || $module eq 'libpng12' || $module eq 'libpng14') {
            # This is for backwards compatability only.  Provide older dylibs for ABI compatability.
            sys_print("make install-exec");
        } else {
            sys_print("make install");
        }
    }

    fix_la();
    chdir('../..');
}


#); All protocol modules must be installed before the libs (okay, that's an
# overstatement, but all protocol modules should be installed anyway)
#
# the libraries have a dependency order:
# xtrans, Xau, Xdmcp before anything else
# xcb before xcb-utils or X11
# fontenc before Xfont
# ICE before SM
# X11 before Xext
# (X11 and SM) before Xt
# Xt before Xmu and Xpm
# Xext before any other extension library
# Xfixes before Xcomposite
# Xp before XprintUtil before XprintAppUtil
sub build_lib {
    build("libpng12");
    if($ENV{MACOSFORGE_RELEASE} eq "YES") {
        build("libpng14");
    }
    sys_print("rm $ENV{DSTROOT}$ENV{X11_PREFIX}/bin/libpng*-config");
    sys_print("rm $ENV{DSTROOT}$ENV{X11_PREFIX}/lib/libpng*.la");
    sys_print("rm $ENV{DSTROOT}$ENV{X11_PREFIX}/lib/libpng1?.dylib");
    sys_print("rm $ENV{DSTROOT}$ENV{X11_PREFIX}/lib/libpng12.0.*.dylib");
    sys_print("rm $ENV{DSTROOT}$ENV{X11_PREFIX}/lib/libpng.3.*.0.dylib");
    build("libpng");
    build("pixman");
    build("xtrans");
    build("libpthread-stubs");
    build("libXau");
    build("libXdmcp");
    build("libxcb");
    build("xcb-util");
    build("libX11");
    build("libXext");
    build("libAppleWM");
    build("libdmx");
    build("libfontenc");
    build("libFS");
    build("libICE");
    build("libSM");
    build("libXt");
    build("libXmu");
    build("libXpm");
    # Include old, crufty, deprecated libs for binary compatability
    if($ENV{MACOSFORGE_SL} ne "YES") {
        build("libXp");
        build("libXaw8");
    }
    build("libXaw");
    build("libXfixes");
    build("libXcomposite");
    build("libXrender");
    build("libXdamage");
    build("libXcursor");
    build("libXfont");
    build("libXxf86vm");
    build("libXft");
    build("libXi");
    build("libXinerama");
    build("libxkbfile");
    build("libXrandr");
    build("libXres");
    build("libXScrnSaver");
    build("libXtst");
    build("libXv");
    build("libXvMC");
    build("mesa");
    build("cairo");
    build("xpyb");

    # Include old, crufty, deprecated libs for binary compatability
    if($ENV{MACOSFORGE_SL} ne "YES") {
        build("libXevie");
        build("libXfontcache");
        build("libxkbui");
        build("libXTrap");
        build("libXxf86misc");
    }
}

sub make_dsyms {
    open(FIND,"find $ENV{DSTROOT} -type f -exec file {} +|");
    while(<FIND>) {
	if(/(.*): .*Mach-O/) {
	    $basename=$1;
	    $fullname=$1;
	    $basename =~ s/\/.*\///;
	    sys_print_nodie("dsymutil --out=$ENV{SYMROOT}/$basename.dSYM $fullname");
	    sys_print_nodie("cp $fullname $ENV{SYMROOT}");
	    sys_print_nodie("strip -S $fullname");
	}
    }
    close FIND;
}

sub fix_la {
    sys_print_nodie("sed -i.bak 's_libdir=.*_libdir=$ENV{DSTROOT}$prefix/lib_' $ENV{DSTROOT}$prefix/lib/*.la");
    sys_print_nodie("sed -i.bak 's_ ".$prefix."_ ".$ENV{DSTROOT}.$prefix."_' $ENV{DSTROOT}$prefix/lib/*.la");
    sys_print_nodie("sed -i.bak \"s/\\(library_names='[^ ]* [^ ]*\\) [^ ]*'/\\1'/\" $ENV{DSTROOT}$prefix/lib/*.la");
    sys_print_nodie("rm $ENV{DSTROOT}$prefix/lib/*.bak");
}

sub fix_la_reverse {
    sys_print_nodie("sed -i.bak 's_libdir=.*_libdir=$prefix/lib_' $ENV{DSTROOT}$prefix/lib/*.la");
    sys_print_nodie("sed -i.bak 's_$ENV{DSTROOT}__g' $ENV{DSTROOT}$prefix/lib/*.la");
    sys_print_nodie("rm $ENV{DSTROOT}$prefix/lib/*.bak");
}

sub lipoexec {
    $fname=shift;
    if($ENV{MACOSFORGE_RELEASE} eq "LEO") {
        sys_print_nodie("lipo $fname -verify_arch x86_64 && lipo -remove x86_64 -output $fname $fname");
        sys_print_nodie("lipo $fname -verify_arch ppc64 && lipo -remove ppc64 -output $fname $fname");
    } else {
        sys_print_nodie("lipo $fname -verify_arch ppc && lipo -remove ppc -output $fname $fname");
    }
}

sub nuke_la {
    sys_print("rm $ENV{DSTROOT}$prefix/lib/*.la");
    if($ENV{MACOSFORGE_RELEASE} eq "YES") {
        sys_print("rm $ENV{DSTROOT}$ENV{X11_PREFIX}/lib/python*/xcb/*.la");
    } else {
        sys_print("rm $ENV{DSTROOT}/" . `python -c 'import sys, os;print os.path.join(sys.prefix, "Extras/X11/xcb/*.la")'`);
    }
}