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Switch to LLVM-based MinGW toolchain (#14329)

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sfan5 2024-02-16 21:36:19 +01:00 committed by GitHub
parent 8c3a6a819e
commit f483d10c95
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GPG Key ID: B5690EEEBB952194
11 changed files with 110 additions and 147 deletions
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4
.github/workflows/windows.yml vendored
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@ -36,7 +36,7 @@ jobs:
- name: Install compiler
run: |
sudo apt-get update && sudo apt-get install -y gettext
sudo ./util/buildbot/download_toolchain.sh i686 /usr
sudo ./util/buildbot/download_toolchain.sh /usr
- name: Build
run: |
@ -56,7 +56,7 @@ jobs:
- name: Install compiler
run: |
sudo apt-get update && sudo apt-get install -y gettext
sudo ./util/buildbot/download_toolchain.sh x86_64 /usr
sudo ./util/buildbot/download_toolchain.sh /usr
- name: Build
run: |

21
src/main.cpp
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@ -67,12 +67,14 @@ extern "C" {
#error Minetest cannot be built without exceptions or RTTI
#endif
#if defined(__MINGW32__) && !defined(__MINGW64__) && !defined(__clang__) && \
(__GNUC__ < 11 || (__GNUC__ == 11 && __GNUC_MINOR__ < 1))
// see e.g. https://github.com/minetest/minetest/issues/10137
#warning ==================================
#warning 32-bit MinGW gcc before 11.1 has known issues with crashes on thread exit, you should upgrade.
#warning ==================================
#if defined(__MINGW32__) && !defined(__clang__)
// see https://github.com/minetest/minetest/issues/14140 or
// https://github.com/minetest/minetest/issues/10137 for one of the various issues we had
#error ==================================
#error MinGW gcc has a broken TLS implementation and is not supported for building \
Minetest. Look at testTLS() in test_threading.cpp and see for yourself. \
Please use a clang-based compiler or alternatively MSVC.
#error ==================================
#endif
#define DEBUGFILE "debug.txt"
@ -435,6 +437,13 @@ static void print_version(std::ostream &os)
os << "Using " << LUAJIT_VERSION << std::endl;
#else
os << "Using " << LUA_RELEASE << std::endl;
#endif
#if defined(__clang__)
os << "Built by Clang " << __clang_major__ << "." << __clang_minor__ << std::endl;
#elif defined(__GNUC__)
os << "Built by GCC " << __GNUC__ << "." << __GNUC_MINOR__ << std::endl;
#elif defined(_MSC_VER)
os << "Built by MSVC " << (_MSC_VER / 100) << "." << (_MSC_VER % 100) << std::endl;
#endif
os << "Running on " << porting::get_sysinfo() << std::endl;
os << g_build_info << std::endl;

38
util/buildbot/buildwin32.sh
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@ -13,42 +13,36 @@ libdir=$builddir/libs
source $topdir/common.sh
# Test which win32 compiler is present
command -v i686-w64-mingw32-gcc >/dev/null &&
compiler=i686-w64-mingw32-gcc
command -v i686-w64-mingw32-gcc-posix >/dev/null &&
compiler=i686-w64-mingw32-gcc-posix
compiler=i686-w64-mingw32-clang
if [ -z "$compiler" ]; then
echo "Unable to determine which MinGW compiler to use"
if ! command -v "$compiler" >/dev/null; then
echo "Unable to find $compiler"
exit 1
fi
toolchain_file=$topdir/toolchain_${compiler/-gcc/}.cmake
toolchain_file=$topdir/toolchain_${compiler%-*}.cmake
echo "Using $toolchain_file"
find_runtime_dlls i686-w64-mingw32
find_runtime_dlls ${compiler%-*}
# Get stuff
irrlicht_version=$(cat $topdir/../../misc/irrlichtmt_tag.txt)
mkdir -p $libdir
# 'ucrt' just points to rebuilt versions after a toolchain change
cd $libdir
libhost="http://minetest.kitsunemimi.pw"
download "https://github.com/minetest/irrlicht/releases/download/$irrlicht_version/win32.zip" irrlicht-$irrlicht_version-win32.zip
download "$libhost/zlib-$zlib_version-win32.zip"
download "$libhost/ucrt/zstd-$zstd_version-win32.zip"
download "$libhost/ucrt/libogg-$ogg_version-win32.zip"
download "$libhost/ucrt/libvorbis-$vorbis_version-win32.zip"
download "$libhost/curl-$curl_version-win32.zip"
download "https://github.com/minetest/irrlicht/releases/download/$irrlicht_version/win32-llvm.zip" irrlicht-$irrlicht_version-win32.zip
download "$libhost/llvm/zlib-$zlib_version-win32.zip"
download "$libhost/llvm/zstd-$zstd_version-win32.zip"
download "$libhost/llvm/libogg-$ogg_version-win32.zip"
download "$libhost/llvm/libvorbis-$vorbis_version-win32.zip"
download "$libhost/llvm/curl-$curl_version-win32.zip"
download "$libhost/ucrt/gettext-$gettext_version-win32.zip"
download "$libhost/freetype-$freetype_version-win32.zip"
download "$libhost/sqlite3-$sqlite3_version-win32.zip"
download "$libhost/luajit-$luajit_version-win32.zip"
download "$libhost/ucrt/libleveldb-$leveldb_version-win32.zip" leveldb-$leveldb_version-win32.zip
download "$libhost/openal-soft-$openal_version-win32.zip"
download "$libhost/llvm/freetype-$freetype_version-win32.zip"
download "$libhost/llvm/sqlite3-$sqlite3_version-win32.zip"
download "$libhost/llvm/luajit-$luajit_version-win32.zip"
download "$libhost/llvm/libleveldb-$leveldb_version-win32.zip"
download "$libhost/llvm/openal-soft-$openal_version-win32.zip"
# Set source dir, downloading Minetest as needed
get_sources

38
util/buildbot/buildwin64.sh
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@ -13,42 +13,36 @@ libdir=$builddir/libs
source $topdir/common.sh
# Test which win64 compiler is present
command -v x86_64-w64-mingw32-gcc >/dev/null &&
compiler=x86_64-w64-mingw32-gcc
command -v x86_64-w64-mingw32-gcc-posix >/dev/null &&
compiler=x86_64-w64-mingw32-gcc-posix
compiler=x86_64-w64-mingw32-clang
if [ -z "$compiler" ]; then
echo "Unable to determine which MinGW compiler to use"
if ! command -v "$compiler" >/dev/null; then
echo "Unable to find $compiler"
exit 1
fi
toolchain_file=$topdir/toolchain_${compiler/-gcc/}.cmake
toolchain_file=$topdir/toolchain_${compiler%-*}.cmake
echo "Using $toolchain_file"
find_runtime_dlls x86_64-w64-mingw32
find_runtime_dlls ${compiler%-*}
# Get stuff
irrlicht_version=$(cat $topdir/../../misc/irrlichtmt_tag.txt)
mkdir -p $libdir
# 'ucrt' just points to rebuilt versions after a toolchain change
cd $libdir
libhost="http://minetest.kitsunemimi.pw"
download "https://github.com/minetest/irrlicht/releases/download/$irrlicht_version/win64.zip" irrlicht-$irrlicht_version-win64.zip
download "$libhost/zlib-$zlib_version-win64.zip"
download "$libhost/ucrt/zstd-$zstd_version-win64.zip"
download "$libhost/ucrt/libogg-$ogg_version-win64.zip"
download "$libhost/ucrt/libvorbis-$vorbis_version-win64.zip"
download "$libhost/curl-$curl_version-win64.zip"
download "https://github.com/minetest/irrlicht/releases/download/$irrlicht_version/win64-llvm.zip" irrlicht-$irrlicht_version-win64.zip
download "$libhost/llvm/zlib-$zlib_version-win64.zip"
download "$libhost/llvm/zstd-$zstd_version-win64.zip"
download "$libhost/llvm/libogg-$ogg_version-win64.zip"
download "$libhost/llvm/libvorbis-$vorbis_version-win64.zip"
download "$libhost/llvm/curl-$curl_version-win64.zip"
download "$libhost/ucrt/gettext-$gettext_version-win64.zip"
download "$libhost/freetype-$freetype_version-win64.zip"
download "$libhost/sqlite3-$sqlite3_version-win64.zip"
download "$libhost/luajit-$luajit_version-win64.zip"
download "$libhost/ucrt/libleveldb-$leveldb_version-win64.zip" leveldb-$leveldb_version-win64.zip
download "$libhost/openal-soft-$openal_version-win64.zip"
download "$libhost/llvm/freetype-$freetype_version-win64.zip"
download "$libhost/llvm/sqlite3-$sqlite3_version-win64.zip"
download "$libhost/llvm/luajit-$luajit_version-win64.zip"
download "$libhost/llvm/libleveldb-$leveldb_version-win64.zip"
download "$libhost/llvm/openal-soft-$openal_version-win64.zip"
# Set source dir, downloading Minetest as needed
get_sources

44
util/buildbot/common.sh
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@ -9,9 +9,9 @@ curl_version=8.5.0
gettext_version=0.20.2
freetype_version=2.13.2
sqlite3_version=3.44.2
luajit_version=20231211
luajit_version=20240125
leveldb_version=1.23
zlib_version=1.3
zlib_version=1.3.1
zstd_version=1.5.5
download () {
@ -48,11 +48,11 @@ get_sources () {
# sets $runtime_dlls
find_runtime_dlls () {
local triple=$1
# Try to find runtime DLLs in various paths (varies by distribution, sigh)
# Try to find runtime DLLs in various paths
local tmp=$(dirname "$(command -v $compiler)")/..
runtime_dlls=
for name in lib{gcc_,stdc++-,winpthread-}'*'.dll; do
for dir in $tmp/$triple/{bin,lib} $tmp/lib/gcc/$triple/*; do
for name in lib{clang_rt,c++,unwind,winpthread-}'*'.dll; do
for dir in $tmp/$triple/{bin,lib}; do
[ -d "$dir" ] || continue
local file=$(echo $dir/$name)
[ -f "$file" ] && { runtime_dlls+="$file;"; break; }
@ -65,14 +65,20 @@ find_runtime_dlls () {
fi
}
add_cmake_libs () {
local irr_dlls=$(echo $libdir/irrlicht/lib/*.dll | tr ' ' ';')
local vorbis_dlls=$(echo $libdir/libvorbis/bin/libvorbis{,file}-*.dll | tr ' ' ';')
local gettext_dlls=$(echo $libdir/gettext/bin/lib{intl,iconv}-*.dll | tr ' ' ';')
_dlls () {
for f in "$@"; do
if [ ! -e "$f" ]; then
echo "Could not find $f" >&2
elif [[ -f "$f" && "$f" == *.dll ]]; then
printf '%s;' "$f"
fi
done
}
add_cmake_libs () {
cmake_args+=(
-DCMAKE_PREFIX_PATH=$libdir/irrlicht
-DIRRLICHT_DLL="$irr_dlls"
-DIRRLICHT_DLL="$(_dlls $libdir/irrlicht/lib/*)"
-DZLIB_INCLUDE_DIR=$libdir/zlib/include
-DZLIB_LIBRARY=$libdir/zlib/lib/libz.dll.a
@ -87,37 +93,37 @@ add_cmake_libs () {
-DOGG_INCLUDE_DIR=$libdir/libogg/include
-DOGG_LIBRARY=$libdir/libogg/lib/libogg.dll.a
-DOGG_DLL=$libdir/libogg/bin/libogg-0.dll
-DOGG_DLL="$(_dlls $libdir/libogg/bin/*)"
-DVORBIS_INCLUDE_DIR=$libdir/libvorbis/include
-DVORBIS_LIBRARY=$libdir/libvorbis/lib/libvorbis.dll.a
-DVORBIS_DLL="$vorbis_dlls"
-DVORBIS_DLL="$(_dlls $libdir/libvorbis/bin/libvorbis{,file}[-.]*)"
-DVORBISFILE_LIBRARY=$libdir/libvorbis/lib/libvorbisfile.dll.a
-DOPENAL_INCLUDE_DIR=$libdir/openal/include/AL
-DOPENAL_LIBRARY=$libdir/openal/lib/libOpenAL32.dll.a
-DOPENAL_DLL=$libdir/openal/bin/OpenAL32.dll
-DCURL_DLL=$libdir/curl/bin/libcurl-4.dll
-DCURL_DLL="$(_dlls $libdir/curl/bin/libcurl*)"
-DCURL_INCLUDE_DIR=$libdir/curl/include
-DCURL_LIBRARY=$libdir/curl/lib/libcurl.dll.a
-DGETTEXT_MSGFMT=`command -v msgfmt`
-DGETTEXT_DLL="$gettext_dlls"
-DGETTEXT_DLL="$(_dlls $libdir/gettext/bin/lib{intl,iconv}*)"
-DGETTEXT_INCLUDE_DIR=$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=$libdir/freetype/bin/libfreetype-6.dll
-DFREETYPE_DLL="$(_dlls $libdir/freetype/bin/libfreetype*)"
-DSQLITE3_INCLUDE_DIR=$libdir/sqlite3/include
-DSQLITE3_LIBRARY=$libdir/sqlite3/lib/libsqlite3.dll.a
-DSQLITE3_DLL=$libdir/sqlite3/bin/libsqlite3-0.dll
-DSQLITE3_DLL="$(_dlls $libdir/sqlite3/bin/libsqlite*)"
-DLEVELDB_INCLUDE_DIR=$libdir/leveldb/include
-DLEVELDB_LIBRARY=$libdir/leveldb/lib/libleveldb.dll.a
-DLEVELDB_DLL=$libdir/leveldb/bin/libleveldb.dll
-DLEVELDB_INCLUDE_DIR=$libdir/libleveldb/include
-DLEVELDB_LIBRARY=$libdir/libleveldb/lib/libleveldb.dll.a
-DLEVELDB_DLL=$libdir/libleveldb/bin/libleveldb.dll
)
}

19
util/buildbot/download_toolchain.sh
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@ -1,18 +1,17 @@
#!/bin/bash
set -e
topdir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
if [[ -z "$1" || -z "$2" ]]; then
echo "Usage: $0 <i686 | x86_64> <dest path>"
if [ -z "$1" ]; then
echo "Usage: $0 <dest path>"
exit 1
fi
# our current toolchain:
# binutils 2.41 + GCC 13.2.0 + Mingw-w64 11.0.1 with UCRT enabled and winpthreads support
# built from source on Ubuntu 22.04, so should work on any similarily up-to-date distro
ver=13.2.0
os=ubuntu22.04
name="mingw-w64-${1}_${ver}_${os}.tar.xz"
wget "http://minetest.kitsunemimi.pw/$name" -O "$name"
# key points:
# * Clang + LLD + libc++ instead of GCC + binutils + stdc++
# * Mingw-w64 with UCRT enabled and winpthreads support
# why are we avoiding GCC? -> Thread Local Storage (TLS) is totally broken
name=llvm-mingw-20231128-ucrt-ubuntu-20.04-x86_64.tar.xz
wget "https://github.com/mstorsjo/llvm-mingw/releases/download/20231128/$name" -O "$name"
sha256sum -w -c <(grep -F "$name" "$topdir/sha256sums.txt")
tar -xaf "$name" -C "$2"
tar -xaf "$name" -C "$1" --strip-components=1
rm -f "$name"

47
util/buildbot/sha256sums.txt
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@ -1,26 +1,25 @@
c6759580175dee6c3673bb0544f0aca855f76b415b441db2b949fe9e2af4e6ee curl-8.5.0-win32.zip
a99ebdccad524f3738fa3a6a9d1dcabc39cb668f97790638d77b4bb96ea3edca curl-8.5.0-win64.zip
d70c9886526513a2c8a7962815fb425f296ab934239470a03ea350944169a7ac freetype-2.13.2-win32.zip
06aa20c71724e832874baa296d047aa866db2c336e26aa49e4faa72e559414a6 freetype-2.13.2-win64.zip
753dc38c591e078eae6a0a6b25f69826211256f444f3691a170670d8a12988f9 curl-8.5.0-win32.zip
aa86abc3eb054d74d5fe15996f281cf84230a61b4ab7b3a702ab7dbb71e1203f curl-8.5.0-win64.zip
3e9d7bbca953b96dfd65acc28baaa87e8881aab29809ba03b9c9aefe3d071189 freetype-2.13.2-win32.zip
acf901e93aedbcfa92eb3aab1def252676af845b1747ca5c3e7c5866576168cc freetype-2.13.2-win64.zip
41b10766de2773f0f0851fde16b363024685e0397f4bb2e5cd2a7be196960a01 gettext-0.20.2-win32.zip
1ceed167ff16fea944f76ab6ea2969160c71a67419259b17c9c523e7a01eb883 gettext-0.20.2-win64.zip
faa09cd5c3790fdad3fcb43ba1d5c5102492a7b88b9301de59cecb92af37c162 irrlicht-1.9.0mt14-win32.zip
a5724e994f417b04e43bc9dd54adf6f32050e39b2cc1a79acdf361a9d3972ece irrlicht-1.9.0mt14-win64.zip
6d49348215916ff355187fec808d0847450f70e45fe2719f45af9eb61c047358 leveldb-1.23-win32.zip
30c680277320bdda130b238d0adc30c3c59e7522dc008d677893ebfaea22f28b leveldb-1.23-win64.zip
d58b67954f3f552fba5e315ed476c38b230d0cf53445fe07dc733e72f8ba7dc2 libogg-1.3.5-win32.zip
2083cceb79b648cd500afe8b71c56170481f309cb6abd950195cdd13570e03dd libogg-1.3.5-win64.zip
1ce1c71e1dfdd99f47c93614a521ec0797d8fb55fb3fc07b67937ea7c6f76cca libvorbis-1.3.7-win32.zip
1c6fe4aa1c38079f2917e17e6b5acd7505331236c426e3b86054efccec6cee1c libvorbis-1.3.7-win64.zip
1c9b9580d869ee57b8c30a083d0e9a737310c1bb5e376b05fba483bac99eb2e1 luajit-20231211-win32.zip
3b42a31887ad7901f83a9f5b5faa4745ce95c7e95a7d8fd569d603fc95573ea5 luajit-20231211-win64.zip
9f0cfab8ca089d48be7a59f85d5fd5648f18f54c91d7ac6c31b281ba5e90852a mingw-w64-i686_13.2.0_ubuntu22.04.tar.xz
93bc9f04d43a023358d1ae2b76dec42d3d79baecd452402ee9fb3ee21945fdfe mingw-w64-x86_64_13.2.0_ubuntu22.04.tar.xz
34c4e6826a8e0dc4f7a49f7e4e4d54676f89a20fe781bad876795b857f7c5395 openal-soft-1.23.1-win32.zip
4b9c9a7f42aa8f7e6d26347ad61c55a32a2b11e4f02b8562542bcd132b0c7115 openal-soft-1.23.1-win64.zip
082dfee313c7e29e48ff798503acb286a4542c315618d5d3b33fc2bbed4170a5 sqlite3-3.44.2-win32.zip
e8fda50178f1371c52f85ac19a0998d797ad6b2439f1da87c49a1f44ba33649c sqlite3-3.44.2-win64.zip
3c5abd40e9492c834651d995db6bbf0f57a7579d091d2d03110293b95e9b039a zlib-1.3-win32.zip
f63d9a38c2ee56fa1e95a486224c274412cb5b3275734c1da53b0a68a7e8c654 zlib-1.3-win64.zip
7508d714dbed4e1b1340cfb13ea77ef631746dad99ac97434171f2f4dd64d94b zstd-1.5.5-win32.zip
30353afddb459974c4e90c4eb3fbf975951247cf310fa5f40208806e275776fa zstd-1.5.5-win64.zip
6b37e3f734c48caa7ba8756abed63c5171bf54f4f679a1dc3869ec2bd94be48d irrlicht-1.9.0mt14-win32.zip
5aca6d711881d3d6a4d5da4b53b2cf0e73a0c113b8776730bbfa3f3bc4aebea7 irrlicht-1.9.0mt14-win64.zip
f54e9a577e2db47ed28f4a01e74181d2c607627c551d30f48263e01b59e84f67 libleveldb-1.23-win32.zip
2f039848a4e6c05a2347fe5a7fa63c430dd08d1bc88235645a863c859e14f5f8 libleveldb-1.23-win64.zip
0df94afb8efa361cceb132ecf9491720afbc45ba844a7b1c94607295829b53ca libogg-1.3.5-win32.zip
5c4acb4c99429a04b5e69650719b2eb17616bf52837d2372a0f859952eebce48 libogg-1.3.5-win64.zip
456ece10a2be4247b27fbe88f88ddd54aae604736a6b76ba9a922b602fe40f40 libvorbis-1.3.7-win32.zip
57f4db02da00556895bb63fafa6e46b5f7dac87c25fde27af4315f56a1aa7a86 libvorbis-1.3.7-win64.zip
0f21ff3be90311092fe32e0e30878ef3ae9d9437b8d9ac25ef279e0d84e9bb8e llvm-mingw-20231128-ucrt-ubuntu-20.04-x86_64.tar.xz
da6ad10632cf172992158e9ea0977a87914b5d5de93a972c3430b6a412237556 luajit-20240125-win32.zip
2b1dabe83d478b398cf9226d96de7fa62c973365c4aea70d27ba5782fb49d2d0 luajit-20240125-win64.zip
e2443451fe5c2066eb564c64b8a1762738a88b7fd749c8b5907fed45c785497b openal-soft-1.23.1-win32.zip
cb041445a118469caefbad2647470cb8571c8337bce2adc07634011ab5625417 openal-soft-1.23.1-win64.zip
326701086a0ed66e09a9f3ec4d971654c13b6bd79cfdd079c947ecdcd6409525 sqlite3-3.44.2-win32.zip
b2d474e3625f8f426b6cc5c0ecac831a1de46f7d1027bf4a9f6267b0b0411d42 sqlite3-3.44.2-win64.zip
8af10515d57dbfee5d2106cd66cafa2adeb4270d4c6047ccbf7e8b5d2d50681c zlib-1.3.1-win32.zip
ad43f5d23052590c65633530743e5d622cc76b33c109072e6fd7b487aff56bca zlib-1.3.1-win64.zip
3564dabbe17ec4ecae1fb9a78fe48d9f7c71e2b1166456f6ee27e52fd9c84357 zstd-1.5.5-win32.zip
e61b1f327ce2d836d1f8ca00c40ac77d3ab5309135851c98229bbdf82b060ae5 zstd-1.5.5-win64.zip

19
util/buildbot/toolchain_i686-w64-mingw32-posix.cmake
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@ -1,19 +0,0 @@
# 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 i686-w64-mingw32-gcc-posix)
SET(CMAKE_CXX_COMPILER i686-w64-mingw32-g++-posix)
SET(CMAKE_RC_COMPILER i686-w64-mingw32-windres)
# here is the target environment located
SET(CMAKE_FIND_ROOT_PATH /usr/i686-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)

4
util/buildbot/toolchain_i686-w64-mingw32.cmake
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@ -2,8 +2,8 @@
SET(CMAKE_SYSTEM_NAME Windows)
# which compilers to use for C and C++
SET(CMAKE_C_COMPILER i686-w64-mingw32-gcc)
SET(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
SET(CMAKE_C_COMPILER i686-w64-mingw32-clang)
SET(CMAKE_CXX_COMPILER i686-w64-mingw32-clang++)
SET(CMAKE_RC_COMPILER i686-w64-mingw32-windres)
# here is the target environment located

19
util/buildbot/toolchain_x86_64-w64-mingw32-posix.cmake
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@ -1,19 +0,0 @@
# 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)

4
util/buildbot/toolchain_x86_64-w64-mingw32.cmake
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@ -2,8 +2,8 @@
SET(CMAKE_SYSTEM_NAME Windows)
# which compilers to use for C and C++
SET(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
SET(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
SET(CMAKE_C_COMPILER x86_64-w64-mingw32-clang)
SET(CMAKE_CXX_COMPILER x86_64-w64-mingw32-clang++)
SET(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
# here is the target environment located