Add mswindows/crosscompile.sh (#269)

I'm taking the liberty of merging this PR after 2 weeks of testing.

mswindows/crosscompile.sh

@@ -0,0 +1,353 @@
+#!/bin/sh
+#
+################################################################################
+#
+# MODULE:	crosscompile.sh
+# AUTHOR(S):	Huidae Cho <grass4u gmail.com>
+# PURPOSE:	Builds a cross-compiled portable package of GRASS GIS
+# COPYRIGHT:	(C) 2019 by Huidae Cho and the GRASS Development Team
+#
+#		This program is free software under the GNU General Public
+#		License (>=v2). Read the file COPYING that comes with GRASS
+#		for details.
+#
+################################################################################
+#
+# This script requires MXE <https://mxe.cc/> for cross-compilation and was
+# tested on Slackware 14.2 x86_64 with up-to-date packages from slackpkg and
+# sbopkg.
+#
+# Basic steps:
+#
+# mkdir -p ~/usr/src
+# cd ~/usr/src
+# git clone https://github.com/mxe/mxe.git
+# cd mxe
+# echo MXE_TARGETS=x86_64-w64-mingw32.shared > settings.mk
+# make cc blas bzip2 cairo fftw freetype gdal geos lapack netcdf libpng \
+#      pthreads readline libgnurx sqlite tiff zstd proj
+#
+# cd ~/usr/src
+# git clone https://github.com/OSGeo/grass.git
+# cd grass
+# mswindows/crosscompile.sh --mxe=$HOME/usr/src/mxe --update --package \
+#      > crosscompile.log 2>&1
+#
+
+# stop on errors
+set -e
+
+# default paths, but can be overriden from the command line
+MXE=${MXE-$HOME/usr/local/src/mxe}
+FREETYPE_INCLUDE=${FREETYPE_INCLUDE-/usr/include/freetype2}
+
+# process options
+UPDATE=0
+PACKAGE=0
+for opt; do
+	case "$opt" in
+	-h|--help)
+		cat<<'EOT'
+Usage: crosscompile.sh [OPTIONS]
+
+-h, --help                   display this help message
+    --mxe=PATH               MXE path (default: $HOME/usr/local/src/mxe)
+    --freetype-include=PATH  FreeType include path
+                             (default: /usr/include/freetype2)
+    --update                 update the current branch
+    --package                package the cross-compiled build as
+                             grass79-x86_64-w64-mingw32-YYYYMMDD.zip
+EOT
+		exit
+		;;
+	--mxe=*)
+		MXE=`echo $opt | sed 's/^[^=]*=//'`
+		;;
+	--freetype-include=*)
+		FREETYPE_INCLUDE=`echo $opt | sed 's/^[^=]*=//'`
+		;;
+	--update)
+		UPDATE=1
+		;;
+	--package)
+		PACKAGE=1
+		;;
+	*)
+		echo "$opt: unknown option"
+		exit 1
+		;;
+	esac
+done
+
+# see if we're inside the root of the GRASS source code
+if [ ! -f grass.pc.in ]; then
+	echo "Please run this script from the root of the GRASS source code"
+	exit 1
+fi
+
+# check paths
+errors=0
+if [ ! -d $MXE ]; then
+	echo "$MXE: not found"
+	errors=1
+fi
+if [ ! -d $FREETYPE_INCLUDE ]; then
+	echo "$FREETYPE_INCLUDE: not found"
+	errors=1
+fi
+if [ $UPDATE -eq 1 -a ! -d .git ]; then
+	echo "not a git repository"
+	errors=1
+fi
+if [ $errors -eq 1 ]; then
+	exit 1
+fi
+
+################################################################################
+# Start
+
+echo "Started cross-compilation: `date`"
+echo
+
+# update the current branch if requested
+if [ $UPDATE -eq 1 -a -d .git ]; then
+	git pull
+fi
+
+################################################################################
+# Compile the native architecture for generating document files
+
+CFLAGS="-g -O2 -Wall" \
+CXXFLAGS="-g -O2 -Wall" \
+LDFLAGS="-lcurses" \
+./configure \
+--with-nls \
+--with-readline \
+--with-wxwidgets \
+--with-freetype-includes=$FREETYPE_INCLUDE \
+--with-bzlib \
+--with-postgres \
+--with-pthread \
+--with-openmp \
+--with-blas \
+--with-lapack \
+--with-geos \
+--with-netcdf \
+>> /dev/stdout
+
+make clean default
+
+BUILD_ARCH=`sed -n '/^ARCH[ \t]*=/{s/^.*=[ \t]*//; p}' include/Make/Platform.make`
+for i in \
+	config.log \
+	include/Make/Platform.make \
+	include/Make/Doxyfile_arch_html \
+	include/Make/Doxyfile_arch_latex \
+	error.log \
+; do
+	cp -a $i $i.$BUILD_ARCH
+done
+
+################################################################################
+# Cross-compile the target architecture
+
+ARCH=x86_64-w64-mingw32
+SHARED=$ARCH.shared
+MXE_BIN=$MXE/usr/bin/$SHARED
+MXE_SHARED=$MXE/usr/$SHARED
+
+CC=$MXE_BIN-gcc \
+CXX=$MXE_BIN-g++ \
+CFLAGS="-g -O2 -Wall" \
+CXXFLAGS="-g -O2 -Wall" \
+AR=$MXE_BIN-ar \
+RANLIB=$MXE_BIN-ranlib \
+WINDRES=$MXE_BIN-windres \
+PKG_CONFIG=$MXE_BIN-pkg-config \
+./configure \
+--host=$ARCH \
+--with-nls \
+--with-readline \
+--with-wxwidgets \
+--with-freetype-includes=$MXE_SHARED/include/freetype2 \
+--with-bzlib \
+--with-postgres \
+--with-pthread \
+--with-openmp \
+--with-blas \
+--with-lapack \
+--with-geos=$MXE_SHARED/bin/geos-config \
+--with-netcdf=$MXE_SHARED/bin/nc-config \
+--with-gdal=$MXE_SHARED/bin/gdal-config \
+--with-opengl=windows \
+>> /dev/stdout
+
+make clean default
+
+ARCH=`sed -n '/^ARCH[ \t]*=/{s/^.*=[ \t]*//; p}' include/Make/Platform.make`
+for i in \
+	config.log \
+	include/Make/Platform.make \
+	include/Make/Doxyfile_arch_html \
+	include/Make/Doxyfile_arch_latex \
+	error.log \
+; do
+	cp -a $i $i.$ARCH
+done
+
+################################################################################
+# Copy document files from the native build
+
+BUILD_DIST=dist.$BUILD_ARCH
+DIST=dist.$ARCH
+
+for i in \
+	docs \
+	gui/wxpython/xml \
+; do
+	rm -rf $DIST/$i
+	cp -a $BUILD_DIST/$i $DIST/$i
+done
+
+################################################################################
+# Copy MXE files
+
+for i in \
+	libblas.dll \
+	libbz2.dll \
+	libcairo-2.dll \
+	libcrypto-1_1-x64.dll \
+	libcurl-4.dll \
+	libdf-0.dll \
+	libexpat-1.dll \
+	libfftw3-3.dll \
+	libfontconfig-1.dll \
+	libfreetype-6.dll \
+	libfreexl-1.dll \
+	libgcc_s_seh-1.dll \
+	libgcrypt-20.dll \
+	libgdal-20.dll \
+	libgeos-3-6-2.dll \
+	libgeos_c-1.dll \
+	libgeotiff-2.dll \
+	libgfortran-3.dll \
+	libgif-7.dll \
+	libglib-2.0-0.dll \
+	libgnurx-0.dll \
+	libgomp-1.dll \
+	libgpg-error-0.dll \
+	libgta-0.dll \
+	libharfbuzz-0.dll \
+	libhdf5-8.dll \
+	libhdf5_hl-8.dll \
+	libiconv-2.dll \
+	libidn2-0.dll \
+	libintl-8.dll \
+	libjpeg-9.dll \
+	libjson-c-4.dll \
+	liblapack.dll \
+	liblzma-5.dll \
+	libmfhdf-0.dll \
+	libmysqlclient.dll \
+	libnetcdf.dll \
+	libopenjp2.dll \
+	libpcre-1.dll \
+	libpixman-1-0.dll \
+	libpng16-16.dll \
+	libportablexdr-0.dll \
+	libpq.dll \
+	libproj-13.dll \
+	libquadmath-0.dll \
+	libreadline8.dll \
+	libspatialite-7.dll \
+	libsqlite3-0.dll \
+	libssh2-1.dll \
+	libssl-1_1-x64.dll \
+	libstdc++-6.dll \
+	libtermcap.dll \
+	libtiff-5.dll \
+	libunistring-2.dll \
+	libwebp-7.dll \
+	libwinpthread-1.dll \
+	libxml2-2.dll \
+	libzstd.dll \
+	zlib1.dll \
+; do
+	cp -a $MXE_SHARED/bin/$i $DIST/lib
+done
+
+for i in \
+	proj \
+	gdal \
+; do
+	rm -rf $DIST/share/$i
+	cp -a $MXE_SHARED/share/$i $DIST/share/$i
+done
+
+################################################################################
+# Post-compile process
+
+VERSION=`sed -n '/^INST_DIR[ \t]*=/{s/^.*grass//; p}' include/Make/Platform.make`
+
+rm -f $DIST/grass$VERSION.tmp
+cp -a bin.$ARCH/grass$VERSION.py $DIST/etc
+
+cat<<'EOT' > $DIST/grass$VERSION.bat
+@echo off
+
+rem Change this variable to override auto-detection of python.exe in PATH
+set GRASS_PYTHON=C:\Python38\python.exe
+
+rem For portable installation, use %~d0 for the changing drive letter
+rem set GRASS_PYTHON=%~d0\Python38\python.exe
+
+set GISBASE=%~dp0
+set GRASS_PROJSHARE=%GISBASE%\share\proj
+
+set PROJ_LIB=%GISBASE%\share\proj
+set GDAL_DATA=%GISBASE%\share\gdal
+
+rem XXX: Do we need these variables?
+rem set GEOTIFF_CSV=%GISBASE%\share\epsg_csv
+rem set FONTCONFIG_FILE=%GISBASE%\etc\fonts.conf
+
+if not exist %GISBASE%\etc\fontcap (
+	pushd .
+	set GISRC=dummy
+	cd %GISBASE%\lib
+	%GISBASE%\bin\g.mkfontcap.exe
+	popd
+)
+
+if not exist "%GRASS_PYTHON%" (
+	set GRASS_PYTHON=
+	for /f usebackq %%i in (`where python.exe`) do set GRASS_PYTHON=%%i
+)
+if "%GRASS_PYTHON%"=="" (
+	echo.
+	echo python.exe not found in PATH
+	echo Please set GRASS_PYTHON in %~f0
+	echo.
+	pause
+	goto:eof
+)
+rem XXX: Do we need PYTHONHOME?
+rem for %%i in (%GRASS_PYTHON%) do set PYTHONHOME=%%~dpi
+
+"%GRASS_PYTHON%" "%GISBASE%\etc\grass79.py" %*
+if %ERRORLEVEL% geq 1 pause
+EOT
+unix2dos $DIST/grass$VERSION.bat
+
+# package if requested
+if [ $PACKAGE -eq 1 ]; then
+	DATE=`date +%Y%m%d`
+	rm -f grass
+	ln -s $DIST grass
+	rm -f grass*-$ARCH-*.zip
+	zip -r grass$VERSION-$ARCH-$DATE.zip grass
+	rm -f grass
+fi
+
+echo
+echo "Completed cross-compilation: `date`"