[Mesa-dev] [PATCH] cmake: Warn that MSVC is unmaintained.

[Roland Scheidegger]

Reviewed-by: Roland Scheidegger <sroland at vmware.com>

Am 12.03.2018 um 10:19 schrieb Jose Fonseca:
> It has been broken for a while, and not much interest from our side
> in keeping it going, as most of us are using MinGW cross-compilers
> anyway.
> 
> I'm not sure if there are other people interested on MSVC, so just
> warn for the time being.
> 
> Also tone down the MSVC warnings, so they don't overwhelm the error
> messages.
> ---
>  CMakeLists.txt | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/CMakeLists.txt b/CMakeLists.txt
> index aaa5329c..1f63316d 100644
> --- a/CMakeLists.txt
> +++ b/CMakeLists.txt
> @@ -108,13 +108,17 @@ if (WIN32)
>  endif (WIN32)
>  
>  if (MSVC)
> +	message (WARNING "MSVC builds are unmainted.  MinGW-w64 is recommended.")
> +
>  	# Enable math constants defines
>  	add_definitions (-D_USE_MATH_DEFINES)
>  
>  	# Silence several MSVC pedantic warnings
>  	add_definitions (-D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS)
>  	add_definitions (-D_SCL_SECURE_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS)
> +	add_definitions (-wd4018) # signed/unsigned mismatch
>  	add_definitions (-wd4244) # conversion' conversion from 'type1' to 'type2', possible loss of data
> +	add_definitions (-wd4305) # truncation from 'type1' to 'type2'
>  
>  	# Use static runtime
>  	# http://www.cmake.org/Wiki/CMake_FAQ#How_can_I_build_my_MSVC_application_with_a_static_runtime.3F
>