Build for win32 & win64 on Travis too

.travis.yml

@@ -2,15 +2,18 @@ language: cpp
 compiler:
   - gcc
   - clang
-before_install:
-  - if [ $CC = "clang" ]; then export PATH="/usr/bin/:$PATH"; sudo sh -c 'echo "deb http://ppa.launchpad.net/eudoxos/llvm-3.1/ubuntu precise main" >> /etc/apt/sources.list'; sudo apt-key adv --keyserver pool.sks-keyservers.net --recv-keys 92DE8183; sudo apt-get update; sudo apt-get install llvm-3.1; sudo apt-get install clang; fi
-  - sudo apt-get install libirrlicht-dev cmake libbz2-dev libpng12-dev libjpeg8-dev libxxf86vm-dev libgl1-mesa-dev libsqlite3-dev libogg-dev libvorbis-dev libopenal-dev gettext
-script:
-  - mkdir -p travisbuild
-  - cd travisbuild
-  - cmake -DENABLE_GETTEXT=1 ..
-  - make -j2
+env:
+  - WINDOWS=32
+  - WINDOWS=64
+  - WINDOWS=no
+before_install: ./util/travis/before_install.sh
+script: ./util/travis/script.sh
 notifications:
   email: false
 matrix:
   fast_finish: true
+  exclude:
+    - env: WINDOWS=32
+      compiler: clang
+    - env: WINDOWS=64
+      compiler: clang

util/buildbot/buildwin32.sh

@@ -71,13 +71,19 @@ cd $libdir
 
 # Get minetest
 cd $builddir
-[ -d minetest ] && (cd minetest && git pull) || (git clone https://github.com/minetest/minetest)
+if [ -d $EXISTING_MINETEST_DIR ]; then
+	ln -s $EXISTING_MINETEST_DIR minetest
+else
+	[ -d minetest ] && (cd minetest && git pull) || (git clone https://github.com/minetest/minetest)
+fi
 cd minetest
 git_hash=`git show | head -c14 | tail -c7`
 
 # Get minetest_game
 cd games
-[ -d minetest_game ] && (cd minetest_game && git pull) || (git clone https://github.com/minetest/minetest_game)
+if [ "x$NO_MINETEST_GAME" = "x" ]; then
+	[ -d minetest_game ] && (cd minetest_game && git pull) || (git clone https://github.com/minetest/minetest_game)
+fi
 cd ../..
 
 # Build the thing

util/buildbot/buildwin64.sh

@@ -66,13 +66,19 @@ cd $libdir
 
 # Get minetest
 cd $builddir
-[ -d minetest ] && (cd minetest && git pull) || (git clone https://github.com/minetest/minetest)
+if [ -d $EXISTING_MINETEST_DIR ]; then
+	ln -s $EXISTING_MINETEST_DIR minetest
+else
+	[ -d minetest ] && (cd minetest && git pull) || (git clone https://github.com/minetest/minetest)
+fi
 cd minetest
 git_hash=`git show | head -c14 | tail -c7`
 
 # Get minetest_game
 cd games
-[ -d minetest_game ] && (cd minetest_game && git pull) || (git clone https://github.com/minetest/minetest_game)
+if [ "x$NO_MINETEST_GAME" = "x" ]; then
+	[ -d minetest_game ] && (cd minetest_game && git pull) || (git clone https://github.com/minetest/minetest_game)
+fi
 cd ../..
 
 # Build the thing

util/travis/before_install.sh

@@ -0,0 +1,29 @@
+#!/bin/bash -e
+
+if [ $CC = "clang" ]; then
+	export PATH="/usr/bin/:$PATH"
+	sudo sh -c 'echo "deb http://ppa.launchpad.net/eudoxos/llvm-3.1/ubuntu precise main" >> /etc/apt/sources.list'
+	sudo apt-key adv --keyserver pool.sks-keyservers.net --recv-keys 92DE8183
+	sudo apt-get update
+	sudo apt-get install llvm-3.1
+	sudo apt-get install clang
+fi
+if [ $WINDOWS = "no" ]; then
+	sudo apt-get install libirrlicht-dev cmake libbz2-dev libpng12-dev \
+	libjpeg8-dev libxxf86vm-dev libgl1-mesa-dev libsqlite3-dev libogg-dev \
+	libvorbis-dev libopenal-dev gettext
+else
+	sudo apt-get install p7zip-full
+	if [ $WINDOWS = "32" ]; then
+		wget http://meow.minetest.net/mingw_w64_i686_ubuntu12.04_4.9.1.7z -O mingw.7z
+		sed -e "s|%PREFIX%|i686-w64-mingw32|" \
+			-e "s|%ROOTPATH%|/usr/i686-w64-mingw32|" \
+			< util/travis/toolchain_mingw.cmake.in > util/buildbot/toolchain_mingw.cmake
+	elif [ $WINDOWS = "64" ]; then
+		wget http://meow.minetest.net/mingw_w64_x86_64_ubuntu12.04_4.9.1.7z -O mingw.7z
+		sed -e "s|%PREFIX%|x86_64-w64-mingw32|" \
+			-e "s|%ROOTPATH%|/usr/x86_64-w64-mingw32|" \
+			< util/travis/toolchain_mingw.cmake.in > util/buildbot/toolchain_mingw64.cmake
+	fi
+	sudo 7z x -y -o/usr mingw.7z
+fi

util/travis/script.sh

@@ -0,0 +1,24 @@
+#!/bin/bash -e
+
+if [ $WINDOWS = "no" ]; then
+	mkdir -p travisbuild
+	cd travisbuild
+	cmake -DENABLE_GETTEXT=1 ..
+	make -j2
+else
+	[ $CC = "clang" ] && exit 1 # Not supposed to happen
+	# We need to have our build directory outside of the minetest directory because
+	#  CMake will otherwise get very very confused with symlinks and complain that
+	#  something is not a subdirectory of something even if it actually is.
+	# e.g.:
+	# /home/travis/minetest/minetest/travisbuild/minetest
+	# \/  \/  \/
+	# /home/travis/minetest/minetest/travisbuild/minetest/travisbuild/minetest
+	# \/  \/  \/
+	# /home/travis/minetest/minetest/travisbuild/minetest/travisbuild/minetest/travisbuild/minetest
+	# You get the idea.
+	OLDDIR=`pwd`
+	cd ..
+	[ $WINDOWS = "32" ] && EXISTING_MINETEST_DIR=$OLDDIR NO_MINETEST_GAME=1 $OLDDIR/util/buildbot/buildwin32.sh travisbuild && exit 0
+	[ $WINDOWS = "64" ] && EXISTING_MINETEST_DIR=$OLDDIR NO_MINETEST_GAME=1 $OLDDIR/util/buildbot/buildwin64.sh travisbuild && exit 0
+fi

util/travis/toolchain_mingw.cmake.in

@@ -0,0 +1,17 @@
+# name of the target operating system
+SET(CMAKE_SYSTEM_NAME Windows)
+
+# which compilers to use for C and C++
+SET(CMAKE_C_COMPILER %PREFIX%-gcc)
+SET(CMAKE_CXX_COMPILER %PREFIX%-g++)
+SET(CMAKE_RC_COMPILER %PREFIX%-windres)
+
+# here is the target environment located
+SET(CMAKE_FIND_ROOT_PATH %ROOTPATH%)
+
+# adjust the default behaviour 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)