# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
# $Id$

PortSystem          1.0

name                mesa
epoch               1
version             8.0.2
revision            2
categories          x11 graphics
maintainers         jeremyhu openmaintainer
license             MIT
description         Mesa 3D Graphics Library
long_description    Mesa is an open-source implementation of the OpenGL specification, a system for rendering interactive 3D graphics.

homepage            http://mesa3d.sourceforge.net/
distname            MesaLib-${version}
worksrcdir          Mesa-${version}
platforms           macosx darwin
use_bzip2           yes
master_sites        ftp://ftp.freedesktop.org/pub/mesa/${version}/
checksums           sha1    bbb55d81294425137ee66c7389fbb474a43c9ab9 \
                    rmd160  a7c4e396d82c890eed462fd45b433812f3fad045 \
                    sha256  8f4d1e70e058a65143e618a9daaf45f00fac04ae9464b35a8d9eeeef3fa5e2a5

depends_build       bin:makedepend:makedepend \
                    bin:tclsh8.5:tcl

depends_lib         port:xorg-glproto \
                    port:xorg-dri2proto \
                    port:xorg-libXfixes \
                    port:xorg-libXi \
                    port:xorg-libXmu

patch.pre_args -p1
patchfiles \
    0001-glapi-Correct-size-of-allocated-_glapi_table-struct.patch \
    0002-apple-Fix-a-use-after-free.patch \
    0003-darwin-Eliminate-a-pthread-mutex-leak.patch

use_configure  no
use_parallel_build yes

build.target darwin
build.args-append INSTALL_DIR=${prefix}
destroot.args-append INSTALL_DIR=${prefix}

variant universal {}
build.args-append RC_CFLAGS="[get_canonical_archflags]"

if { ![file exists /usr/include/Xplugin.h] } {
    # Xplugin.h is missing on Tiger
    configure.cppflags-append -I${filespath}/include
}

configure.cppflags-delete -I${prefix}/include

post-extract {
    if {! [file exists "${worksrcpath}/configs/current"]} {
        ln -s darwin ${worksrcpath}/configs/current
    }
}

post-patch {
    # Ensure correct compilers are used in mklib.
    reinplace "s:LINK=\"g++\":LINK=\"${configure.cxx}\":"  ${worksrcpath}/bin/mklib
    reinplace "s:LINK=\"cc\":LINK=\"${configure.cc}\":"    ${worksrcpath}/bin/mklib
}

pre-configure {
    if { ![file exists /usr/lib/libXplugin.dylib] } {
        ui_error "Detected a problem with your development environment.  Please work around it by executing:"
        ui_error "sudo ln -s libXplugin.1.dylib /usr/lib/libXplugin.dylib"
        return -code error "missing libXplugin.dylib"
    }
}

pre-build {
    build.args-append \
        CC="${configure.cc} ${configure.cppflags}" \
        CXX="${configure.cxx} ${configure.cppflags}"
}

variant iglx description {Install a libGL that uses your X11 server's indirect GLX path for rendering (the default is off which allows libGL to accelerate rendering using OpenGL.framework)} {
    patchfiles-append iglx.patch
}

variant python26 conflicts python27 description {Use python 2.6} {
    depends_build-append \
        port:py26-libxml2
    build.args-append \
        PYTHON2="${prefix}/bin/python2.6"
}

variant python27 conflicts python26 description {Use python 2.7} {
    depends_build-append \
        port:py27-libxml2
    build.args-append \
        PYTHON2="${prefix}/bin/python2.7"
}

if {![variant_isset python26] && ![variant_isset python27]} {
    default_variants +python27
}

platform darwin 8 {
    patchfiles-append tiger-exports.patch

    # https://trac.macports.org/ticket/24345
    # https://trac.macports.org/ticket/24393
    # https://trac.macports.org/ticket/29860
    if {${build_arch} == "ppc"} {
        patchfiles-append patch-src-mesa-Makefile.diff
        post-patch {
            reinplace "/SRC_DIRS/ s/gallium//" ${worksrcpath}/configs/darwin
        }
    }
    
    post-patch {
        # These are being comented out to find out if they're still broken
        # 6/6/2011
        #reinplace "/SRC_DIRS/ s/mesa//" ${worksrcpath}/configs/darwin

        # libOSMesa fails on Tiger, too...
        #reinplace "/DRIVER_DIRS/ s/osmesa//" ${worksrcpath}/configs/darwin

        # http://trac.macports.org/ticket/24366
        reinplace "s:-fno-strict-aliasing:-fno-strict-aliasing -fno-common:g" ${worksrcpath}/configs/darwin
    }
}

platform darwin 9 {
    # https://trac.macports.org/ticket/24345
    configure.compiler gcc-4.2
}

livecheck.type  regex
livecheck.url   http://www.mesa3d.org/news.html
livecheck.regex {relnotes-([0-9.]+)\.html}