Improved MinGW Build Script

build.sh

#!/bin/bash
set -e

clear

GITURL=https://github.com/minetest

CORE_GIT=$GITURL/minetest
CORE_BRANCH=master
CORE_NAME=minetest

IRRLICHT_GIT=$GITURL/irrlicht
IRRLICHT_BRANCH=master
IRRLICHT_NAME=irrlicht

compiler=x86_64-w64-mingw32-gcc-posix
command -v $compiler >/dev/null
if [ $? -ne 0 ]
then
	echo "$compiler compiler must be installed"
	exit 1
fi

toolchain_file=$topdir/toolchain.cmake

topdir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
if [ $# -ne 1 ]; then
	echo "Usage: $0 <build directory>"
	exit 1
fi

# Create directories

workdir=$1
mkdir -p $workdir
workdir="$( cd "$workdir" && pwd )"

sourcedir=$workdir/src
mkdir -p $sourcedir
builddir=$workdir/build
mkdir -p $builddir
tmpdir=$workdir/tmp
mkdir -p $tmpdir

# LibJpeg (Irrlicht dependency)

JPEG_SRC="$sourcedir/jpeg-9"
JPEG_INC="$JPEG_SRC"
JPEG_LIB="$JPEG_SRC/.libs/libjpeg.dll.a"
if [ ! -f "$JPEG_LIB" ]; then
	cd "$sourcedir"
	wget http://www.ijg.org/files/jpegsrc.v9.tar.gz -O "$tmpdir/temp.tar.gz"
	tar xf $tmpdir/temp.tar.gz
	rm $tmpdir/temp.tar.gz
	cd $JPEG_SRC
	CC=$compiler ./configure --prefix=/usr/x86_64-w64-mingw32 --host=x86_64-w64-mingw32
	make -j$(nproc)
	if [ $? -ne 0 ]; then
		echo "Faild to build libjpeg"
		exit 1
	fi
fi

# LibPng (Irrlicht dependency)

PNG_SRC="$sourcedir/libpng-1.6.38"
PNG_INC="$PNG_SRC"
PNG_LIB="$PNG_SRC/.libs/libpng16.dll.a"
if [ ! -f "$PNG_LIB" ]; then
	cd "$sourcedir"
	wget https://sourceforge.net/projects/libpng/files/libpng16/1.6.38/libpng-1.6.38.tar.gz -O "$tmpdir/temp.tar.gz"
	tar xf "$tmpdir/temp.tar.gz"
	rm "$tmpdir/temp.tar.gz"
	cd "$PNG_SRC"
	CC=$compiler ./configure --prefix=/usr/x86_64-w64-mingw32 --host=x86_64-w64-mingw32
	make -j$(nproc)
	if [ $? -ne 0 ]; then
		echo "Faild to build libpng"
		exit 1
	fi
fi

# Build Irrlicht

cd $sourcedir
[ -d $IRRLICHT_NAME ] && { pushd $IRRLICHT_NAME; git config pull.rebase true; git pull; popd; } ||
		git clone -q --depth 1 -b $IRRLICHT_BRANCH $IRRLICHT_GIT $IRRLICHT_NAME
cmake -S $sourcedir/$IRRLICHT_NAME -B $builddir/$IRRLICHT_NAME \
	-DCMAKE_TOOLCHAIN_FILE=$topdir/$toolchain_file \
	-DBUILD_SHARED_LIBS=ON \
	-DJPEG_INCLUDE_DIR=$JPEG_INC \
	-DJPEG_LIBRARY=$JPEG_LIB \
	-DPNG_PNG_INCLUDE_DIR=$PNG_INC \
	-DPNG_LIBRARY=$PNG_LIB \

cmake --build $builddir/$IRRLICHT_NAME -j$(nproc)

libdir=$workdir/libs
mkdir -p $libdir

# Get some more libs

ogg_version=1.3.2
vorbis_version=1.3.5
curl_version=7.65.3
gettext_version=0.20.1
freetype_version=2.11.1
sqlite3_version=3.27.2
zstd_version=1.5.2
luajit_version=2.1.0-beta3
zlib_version=1.2.11

download () {
	local url="$1"
	local foldername="$2"
	[ -d "$foldername" ] && return 0
	echo "Downloading $1"
	wget "$url" -O "$tmpdir/temp.zip"
	unzip -q -o "$tmpdir/temp.zip" -d "$foldername"
	rm "$tmpdir/temp.zip"
}

download "http://minetest.kitsunemimi.pw/zlib-$zlib_version-win64.zip"          "$libdir/zlib"
download "http://minetest.kitsunemimi.pw/zstd-$zstd_version-win64.zip"          "$libdir/zstd"
download "http://minetest.kitsunemimi.pw/libogg-$ogg_version-win64.zip"         "$libdir/libogg"
download "http://minetest.kitsunemimi.pw/libvorbis-$vorbis_version-win64.zip"   "$libdir/libvorbis"
download "http://minetest.kitsunemimi.pw/curl-$curl_version-win64.zip"          "$libdir/curl"
download "http://minetest.kitsunemimi.pw/gettext-$gettext_version-win64.zip"    "$libdir/gettext"
download "http://minetest.kitsunemimi.pw/freetype2-$freetype_version-win64.zip" "$libdir/freetype"
download "http://minetest.kitsunemimi.pw/sqlite3-$sqlite3_version-win64.zip"    "$libdir/sqlite3"
download "http://minetest.kitsunemimi.pw/openal_stripped64.zip"                 "$libdir/openal"
download "http://minetest.kitsunemimi.pw/luajit-$luajit_version-win64.zip"      "$libdir/luajit"

# Build core

cd $sourcedir
[ -d $CORE_NAME ] && { pushd $CORE_NAME; git config pull.rebase true; git pull; popd; } ||
		git clone -q --depth 1 -b $CORE_BRANCH $CORE_GIT $CORE_NAME

rm -f $sourcedir/$CORE_NAME/lib/irrlichtmt
ln -s $sourcedir/$IRRLICHT_NAME $sourcedir/$CORE_NAME/lib/irrlichtmt

vorbis_dlls=$(echo $libdir/libvorbis/bin/libvorbis{,file}-*.dll | tr ' ' ';')
gettext_dlls=$(echo $libdir/gettext/bin/lib{intl,iconv}-*.dll | tr ' ' ';')

cmake -S $sourcedir/$CORE_NAME -B $builddir/$CORE_NAME \
	-DCMAKE_TOOLCHAIN_FILE=$topdir/$toolchain_file \
	-DCMAKE_INSTALL_PREFIX=/tmp \
	-DVERSION_EXTRA=$git_hash \
	-DBUILD_CLIENT=1 -DBUILD_SERVER=0 \
	-DRUN_IN_PLACE=1 \
	\
	-DENABLE_SOUND=1 \
	-DENABLE_CURL=1 \
	-DENABLE_GETTEXT=1 \
	-DENABLE_LEVELDB=0 \
	\
	-DCMAKE_PREFIX_PATH=$sourcedir/$IRRLICHT_NAME \
	-DIRRLICHT_DLL="$builddir/$IRRLICHT_NAME/lib/Win32-gcc/libIrrlichtMt.dll.a" \
	\
	-DZLIB_INCLUDE_DIR=$libdir/zlib/include \
	-DZLIB_LIBRARY=$libdir/zlib/lib/libz.dll.a \
	-DZLIB_DLL=$libdir/zlib/bin/zlib1.dll \
	\
	-DJPEG_INCLUDE_DIR=$JPEG_INC \
	-DJPEG_LIBRARY=$JPEG_LIB \
	-DPNG_PNG_INCLUDE_DIR=$PNG_INC \
	-DPNG_LIBRARY=$PNG_LIB \
	\
	-DZSTD_INCLUDE_DIR=$libdir/zstd/include \
	-DZSTD_LIBRARY=$libdir/zstd/lib/libzstd.dll.a \
	-DZSTD_DLL=$libdir/zstd/bin/libzstd.dll \
	\
	-DLUA_INCLUDE_DIR=$libdir/luajit/include \
	-DLUA_LIBRARY=$libdir/luajit/libluajit.a \
	\
	-DOGG_INCLUDE_DIR=$libdir/libogg/include \
	-DOGG_LIBRARY=$libdir/libogg/lib/libogg.dll.a \
	-DOGG_DLL=$libdir/libogg/bin/libogg-0.dll \
	\
	-DVORBIS_INCLUDE_DIR=$libdir/libvorbis/include \
	-DVORBIS_LIBRARY=$libdir/libvorbis/lib/libvorbis.dll.a \
	-DVORBIS_DLL="$vorbis_dlls" \
	-DVORBISFILE_LIBRARY=$libdir/libvorbis/lib/libvorbisfile.dll.a \
	\
	-DOPENAL_INCLUDE_DIR=$libdir/openal/openal_stripped/include/AL \
	-DOPENAL_LIBRARY=$libdir/openal/openal_stripped/lib/libOpenAL32.dll.a \
	-DOPENAL_DLL=$libdir/openal/openal_stripped/bin/OpenAL32.dll \
	\
	-DCURL_DLL=$libdir/curl/bin/libcurl-4.dll \
	-DCURL_INCLUDE_DIR=$libdir/curl/include \
	-DCURL_LIBRARY=$libdir/curl/lib/libcurl.dll.a \
	\
	-DGETTEXT_MSGFMT=`command -v msgfmt` \
	-DGETTEXT_DLL="$gettext_dlls" \
	-DGETTEXT_INCLUDE_DIR=$libdir/gettext/include \
	-DGETTEXT_LIBRARY=$libdir/gettext/lib/libintl.dll.a \
	\
	-DFREETYPE_INCLUDE_DIR_freetype2=$libdir/freetype/include/freetype2 \
	-DFREETYPE_INCLUDE_DIR_ft2build=$libdir/freetype/include/freetype2 \
	-DFREETYPE_LIBRARY=$libdir/freetype/lib/libfreetype.dll.a \
	-DFREETYPE_DLL=$libdir/freetype/bin/libfreetype-6.dll \
	\
	-DSQLITE3_INCLUDE_DIR=$libdir/sqlite3/include \
	-DSQLITE3_LIBRARY=$libdir/sqlite3/lib/libsqlite3.dll.a \
	-DSQLITE3_DLL=$libdir/sqlite3/bin/libsqlite3-0.dll

cmake --build $builddir/$CORE_NAME -j$(nproc)

# Packaging

getgit()
{
	# 1 - Git repo url
	# 2 - Git branch
	# 3 - Destination path

	echo "Cloning $1"
	rm -rf $3
	git clone -q -j 5 --depth 1 --recurse-submodules $1 -b $2 $3
	rm -rf $3/.git
}

packagedir=$workdir/package
rm -rf $packagedir

# Directory skeletton
mkdir -p $packagedir/$CORE_NAME
mkdir -p $packagedir/$CORE_NAME/client
mkdir -p $packagedir/$CORE_NAME/bin
mkdir -p $packagedir/$CORE_NAME/games
mkdir -p $packagedir/$CORE_NAME/mods

# Core files
cp -r $sourcedir/$CORE_NAME/builtin $packagedir/$CORE_NAME
cp -r $sourcedir/$CORE_NAME/client/shaders $packagedir/$CORE_NAME/client
cp -r $sourcedir/$CORE_NAME/fonts $packagedir/$CORE_NAME
cp -r $builddir/$CORE_NAME/locale $packagedir/$CORE_NAME
cp -r $sourcedir/$CORE_NAME/textures $packagedir/$CORE_NAME

cp \
	$builddir/$CORE_NAME/src/minetest.exe \
	$builddir/$IRRLICHT_NAME/bin/Win32-gcc/IrrlichtMt.dll \
	$libdir/curl/bin/libcurl-4.dll \
	$libdir/freetype/bin/libfreetype-6.dll \
	$libdir/gettext/bin/libiconv-2.dll \
	$libdir/gettext/bin/libintl-8.dll \
	$libdir/libogg/bin/libogg-0.dll \
	$libdir/libvorbis/bin/libvorbisfile-3.dll \
	$libdir/libvorbis/bin/libvorbis-0.dll \
	$libdir/openal/openal_stripped/bin/OpenAL32.dll \
	$libdir/sqlite3/bin/libsqlite3-0.dll \
	$libdir/zlib/bin/zlib1.dll \
	$libdir/zstd/bin/libzstd.dll \
	$sourcedir/jpeg-9/.libs/libjpeg-9.dll \
	$sourcedir/libpng-1.6.38/.libs/libpng16-16.dll \
	$topdir/dlls/* \
	$packagedir/$CORE_NAME/bin

# Games
getgit $GITURL/minetest_game master $packagedir/$CORE_NAME/games/minetest_game

# Zip creation
ZIPNAME="$CORE_NAME""_$(date +"%Y-%m-%d").zip"
cd $packagedir && zip -qr $ZIPNAME $CORE_NAME

# We are done!
echo
echo "$packagedir/$ZIPNAME created!"
echo

toolchain.cmake

# name of the target operating system
SET(CMAKE_SYSTEM_NAME Windows)

# which compilers to use for C and C++
# *-posix is Ubuntu's naming for the MinGW variant that comes with support
# for pthreads / std::thread (required by MT)
SET(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc-posix)
SET(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++-posix)
SET(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)

# here is the target environment located
SET(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)

# adjust the default behavior of the FIND_XXX() commands:
# search headers and libraries in the target environment, search
# programs in the host environment
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)