Build instructions and stuff

Temporary repo for build instructions for some of the dependencies of the Switch fork of OpenMW.

This is going to assume that your devkitA64 is installed to the default path.

Dependencies that are not explicitly shown here can be acquired using dkp-pacman.

Before executing any of this:

(dkp-)pacman -S dkp-toolchain-vars libnx switch-tools switch-zlib switch-bzip2 switch-sdl2 switch-libdrm_nouveau switch-mesa switch-ffmpeg switch-libpng switch-libjpeg-turbo switch-bulletphysics switch-openal-soft switch-cmake switch-pkg-config
# ...and other numerous dependencies that I can't remember
source $DEVKITPRO/switchvars.sh

OpenSceneGraph 3.6.x

This fork has the necessary patches applied to it. Get the 3.6 branch and build it. This takes a long time, don't foget about the -j option for make.

git clone -b 3.6 https://github.com/fgsfdsfgs/OpenSceneGraph.git
cd OpenSceneGraph

mkdir switchbuild && cd switchbuild
aarch64-none-elf-cmake \
-G"Unix Makefiles" \
-DSWITCH_LIBNX=ON \
-DCMAKE_BUILD_TYPE=Release \
-DPKG_CONFIG_EXECUTABLE="$DEVKITPRO/portlibs/switch/bin/aarch64-none-elf-pkg-config" \
-DCMAKE_INSTALL_PREFIX="$DEVKITPRO/portlibs/switch" \
-DOPENGL_PROFILE="GL2" \
-DDYNAMIC_OPENTHREADS=OFF \
-DDYNAMIC_OPENSCENEGRAPH=OFF \
-DBUILD_OSG_PLUGIN_OSG=ON \
-DBUILD_OSG_PLUGIN_DDS=ON \
-DBUILD_OSG_PLUGIN_TGA=ON \
-DBUILD_OSG_PLUGIN_BMP=ON \
-DBUILD_OSG_PLUGIN_JPEG=ON \
-DBUILD_OSG_PLUGIN_PNG=ON \
-DBUILD_OSG_PLUGIN_FREETYPE=ON \
-DOSG_CPP_EXCEPTIONS_AVAILABLE=TRUE \
-DOSG_GL1_AVAILABLE=ON \
-DOSG_GL2_AVAILABLE=ON \
-DOSG_GL3_AVAILABLE=OFF \
-DOSG_GLES1_AVAILABLE=OFF \
-DOSG_GLES2_AVAILABLE=OFF \
-DOSG_GL_LIBRARY_STATIC=ON \
-DBUILD_OSG_APPLICATIONS=OFF \
-DBUILD_OSG_PLUGINS_BY_DEFAULT=OFF \
-DBUILD_OSG_DEPRECATED_SERIALIZERS=OFF \
-D_OPENTHREADS_ATOMIC_USE_GCC_BUILTINS=ON \
-DFREETYPE_INCLUDE_DIRS="$DEVKITPRO/portlibs/switch/include/freetype2" \
-DFREETYPE_LIBRARIES="-lfreetype -lbz2" \
-DFREETYPE_FOUND=TRUE \
..

make && make install

MyGUI 3.2.2

Requires some patches, including one to add swkbd support.

wget https://github.com/MyGUI/mygui/archive/MyGUI3.2.2.tar.gz
tar xf MyGUI3.2.2.tar.gz
cd mygui-MyGUI3.2.2

patch -p1 -t -N < ../patches/mygui/mygui_endianness.patch
patch -p1 -t -N < ../patches/mygui/mygui_swkbd.patch
patch -p1 -t -N < ../patches/mygui/mygui_dlfcn.patch

mkdir switchbuild && cd switchbuild
aarch64-none-elf-cmake \
-G"Unix Makefiles" \
-DSWITCH_LIBNX=ON \
-DCMAKE_BUILD_TYPE=Release \
-DPKG_CONFIG_EXECUTABLE="$DEVKITPRO/portlibs/switch/bin/aarch64-none-elf-pkg-config" \
-DCMAKE_INSTALL_PREFIX="$DEVKITPRO/portlibs/switch" \
-DMYGUI_RENDERSYSTEM=0 \
-DMYGUI_BUILD_DEMOS=OFF \
-DMYGUI_BUILD_TOOLS=OFF \
-DMYGUI_BUILD_PLUGINS=OFF \
-DMYGUI_STATIC=ON \
-DFREETYPE_INCLUDE_DIRS="$DEVKITPRO/portlibs/switch/include/freetype2" \
-DFREETYPE_LIBRARIES="-lfreetype -lbz2" \
-DFREETYPE_FOUND=TRUE \
-DCMAKE_CXX_STANDARD="11" \
-DCMAKE_CXX_EXTENSIONS=ON \
-DCMAKE_CXX_FLAGS="-fpermissive -D__SWITCH__" \
..

make && make install

FFmpeg 4.1.1

The dkp-pacman package is too new, but you should probably still install it first to pull all the dependencies. You'll have to build 4.1.1 yourself:

wget https://ffmpeg.org/releases/ffmpeg-4.1.1.tar.xz
wget https://raw.githubusercontent.com/devkitPro/pacman-packages/90b0bc8fa754055b073778eb4da1a8b364c30839/switch/ffmpeg/ffmpeg.patch
tar xf ffmpeg-4.1.1.tar.xz
cd ffmpeg-4.1.1

patch -Np1 -i ../ffmpeg.patch

./configure --prefix="$PORTLIBS_PREFIX" --disable-shared --enable-static \
  --cross-prefix=aarch64-none-elf- --enable-cross-compile \
  --arch=aarch64 --target-os=horizon --enable-pic --disable-asm \
  --extra-cflags='-D__SWITCH__ -D_GNU_SOURCE -O2 -march=armv8-a -mtune=cortex-a57 -mtp=soft -fPIC -ftls-model=local-exec' \
  --extra-cxxflags='-D__SWITCH__ -D_GNU_SOURCE -O2 -march=armv8-a -mtune=cortex-a57 -mtp=soft -fPIC -ftls-model=local-exec' \
  --extra-ldflags='-fPIE -L${PORTLIBS_PREFIX}/lib -L${DEVKITPRO}/libnx/lib' \
  --disable-runtime-cpudetect --disable-programs --disable-debug --disable-doc \
  --enable-network --disable-hwaccels --disable-encoders \
  --disable-avdevice --enable-swscale --enable-swresample \
  --enable-libass --enable-libfreetype --enable-libfribidi --enable-libtheora \
  --enable-filter='rotate,transpose' \
  --disable-protocols --enable-protocol=file,http,ftp,tcp,udp,rtmp \
  --disable-demuxers --enable-demuxer=h264,matroska,mov,ogg,rtsp,mpegts,bink,wav,mp3 \
  --enable-decoder=mp3,bink,binkaudio_rdft,binkaudio_dct,pcm_*,opus,vorbis \
  --disable-parsers --enable-parser=h264,aac,mpegaudio,vorbis,opus

make && make install

Boost 1.69.0

Luckily we only need a few libs from Boost, but boost::filesystem and boost::iostreams have to be hackpatched a little bit. Boost.Build also doesn't seem to find zlib unless explicitly specified in project-config.jam.

wget https://dl.bintray.com/boostorg/release/1.69.0/source/boost_1_69_0.tar.bz2
tar xf boost_1_69_0.tar.bz2
cd boost_1_69_0

patch -p1 -t -N < ../patches/boost/boost_iostreams.patch
patch -p1 -t -N < ../patches/boost/boost_filesystem.patch

./bootstrap.sh --prefix="$PORTLIBS_PREFIX"

mv -f ../patches/boost/switch-project-config.jam project-config.jam

./b2 \
  --with-filesystem --with-system --with-program_options --with-iostreams \
  --prefix="$PORTLIBS_PREFIX" \
  architecture=arm address-model=64 \
  toolset=gcc-arm \
  threading=multi threadapi=pthread \
  link=static runtime-link=static \
  cxxflags="-march=armv8-a+crc+crypto -mtune=cortex-a57 -mtp=soft -fPIE -ftls-model=local-exec -ffunction-sections -fdata-sections -D__SWITCH__" \
  cflags="-march=armv8-a+crc+crypto -mtune=cortex-a57 -mtp=soft -fPIE -ftls-model=local-exec -ffunction-sections -fdata-sections -D__SWITCH__" \
  variant=release \
  target-os=bsd \
  -sNO_BZIP2=0 \
  -sNO_ZLIB=0 \
  -sNO_COMPRESSION=0 \
  --reconfigure --install