# Build recipe for mesa.
#
# Copyright (c) 2017 Mateus P. Rodrigues <mprodrigues@dragora.org>.
# Copyright (c) 2017-2020 Matias Fonzo <selk@dragora.org>.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Exit immediately on any error
set -e

program=mesa
version=19.0.8
release=2

# Define a category for the output of the package name
pkgcategory=xorg_mesa

tarname=${program}-${version}.tar.gz

# Remote source(s)
fetch=http://mesa.freedesktop.org/archive/$tarname

description="
Mesa is an OpenGL compatible 3-D graphics library.

The Mesa project began as an open-source implementation of the OpenGL
specification - a system for rendering interactive 3D graphics.
"

homepage=http://www.mesa3d.org/
license=MIT

# Source documentation
docs="VERSION"
docsdir="${docdir}/${program}-${version}"

build()
{
    unpack "${tardir}/$tarname"

    cd "$srcdir"

    # To increment compatibility with Musl (Thanks to "Alpine Linux")
    patch -p1 < "${worktree}/patches/mesa/adjust-cache-deflate-buffer.patch"
    patch -p1 < "${worktree}/patches/mesa/musl-fix-includes.patch"
    patch -p1 < "${worktree}/patches/mesa/add-glx-use-tls.patch"

    # Set sane permissions
    chmod -R u+w,go-w,a+rX-s .

    case $arch in
    i?86 | amd64 | x32 )
        extra_options="--enable-glx-read-only-text --disable-asm"
        ;;
    esac

    ./configure CPPFLAGS="-D_XOPEN_SOURCE=700" \
    CFLAGS="$QICFLAGS" CXXFLAGS="$QICXXFLAGS" LDFLAGS="$QILDFLAGS" \
     $configure_args --enable-autotools \
     --libdir=/usr/lib${libSuffix} \
     --infodir=$infodir \
     --mandir=$mandir \
     --docdir=$docsdir \
     --disable-debug \
     --disable-llvm \
     --disable-gallium-llvm \
     --disable-gles1 \
     --enable-gles2 \
     --disable-glx-tls \
     --enable-glx="dri" \
     --enable-gbm \
     --enable-shared-glapi \
     --enable-gallium-extra-hud \
     --enable-dri \
     --enable-dri3 \
     --enable-gallium-osmesa \
     --enable-xa \
     --enable-nine \
     --enable-lmsensors \
     --with-gallium-drivers="i915,nouveau,r600,svga,swrast" \
     --with-platforms="drm,x11" \
     --with-dri-driverdir=/usr/lib${libSuffix}/xorg/modules/dri \
     --build="$(gcc -dumpmachine)" \
     $extra_options

    unset -v extra_options
    make -j${jobs} V=1
    make -j${jobs} DESTDIR="$destdir" install-strip

    # Handle .new files via graft(1), if any
    if test -d "${destdir}/etc"
    then
        touch "${destdir}/etc/.graft-config"
    fi

    # Compress info documents deleting index file for the package
    if test -d "${destdir}/$infodir"
    then
        rm -f "${destdir}/${infodir}/dir"
        lzip -9 "${destdir}/${infodir}"/*
    fi

    # Compress and link man pages (if needed)
    if test -d "${destdir}/$mandir"
    then
        (
            cd "${destdir}/$mandir"
            find . -type f -exec lzip -9 {} +
            find . -type l | while read -r file
            do
                ln -sf "$(readlink -- "$file").lz" "${file}.lz"
                rm -- "$file"
            done
        )
    fi

    # Copy documentation
    mkdir -p "${destdir}${docsdir}"
    cp -p $docs "${destdir}${docsdir}"/
}

