id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
99	MSYS/MinGW not yet supported well	ligh_de		"''Previously already reported in [[https://vcgit.hhi.fraunhofer.de/jvet/VVCSoftware_VTM/issues/1|the other VVCSoftware_VTM bug tracker]] which does not seem to be maintained actively, though...''

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Thanks to the [[https://github.com/jb-alvarado/media-autobuild_suite/|media-autobuild_suite]] I already enjoy building a variety of video and audio software in a regularly updated MSYS2 environment with MinGW32 (GCC 7.3.0) and MinGW64 (GCC 8.2.0).

So I tried to use it to build VVCSoftware_VTM as well. Unfortunately, using CMake to generate ""MSYS Makefiles"", BBuildEnv reported a warning:
{{{
-- Setting up BBuildEnv 3.10.2.4
CMake Warning at cmake/CMakeBuild/cmake/modules/BBuildEnv.cmake:1037 (message):
  BBuildEnv.cmake: generator 'MSYS Makefiles' is not fully supported yet,
  please contact technical support for further information.
Call Stack (most recent call first):
  cmake/CMakeBuild/cmake/modules/BBuildEnv.cmake:1084 (bb_build_env_setup)
  CMakeLists.txt:52 (include)
}}}
Trying to make it anyway failed:
{{{
[  3%] Building CXX object source/Lib/CommonLib/CMakeFiles/CommonLib.dir/Buffer.cpp.obj
In file included from H:/development/media-autobuild_suite-master/build/vvc-git/source/Lib/CommonLib/Buffer.cpp:48:0:
H:/development/media-autobuild_suite-master/build/vvc-git/source/Lib/CommonLib/x86/CommonDefX86.h: In function '__m128i _mm_sel_si128(__m128i, __m128i, __m128i)':
H:/development/media-autobuild_suite-master/build/vvc-git/source/Lib/CommonLib/x86/CommonDefX86.h:158:71: error: SSE vector return without SSE enabled changes the ABI [-Werror=psabi]
 static inline __m128i _mm_sel_si128(__m128i a, __m128i b, __m128i mask)
                                                                       ^
At global scope:
cc1plus.exe: error: unrecognized command line option '-Wno-class-memaccess' [-Werror]
}}}

Are the sources too specifically MSVC optimized?

A few thoughts about the problems arising, posted by e.g. ''SmilingWolf'', can be read in [[https://forum.doom9.org/showthread.php?p=1856433#post1856433|this doom9 forum thread]]. He managed to build the software single-threaded. But with your insight I believe a better adaption is possible."	defect	closed	minor		VTM	VTM-2.2	fixed	build BBuildEnv configure CMake MSYS2 MinGW GCC	ksuehring XiangLi fbossen jvet@…