描述
Describe the bug
When configuring with MSVC, /Zc:__cplusplus is not set when using --backend=vs, but it is set when using --backend=ninja.
To Reproduce
Please include your meson.build files, preferably as a minimal toy example showing the issue.
You may need to create simple source code files (don't include private/proprietary code).
meson.build:
project('zccplusplus', 'cpp', meson_version: '>= 1.0',
default_options:['cpp_std=vc++14', 'buildtype=debug', 'b_vscrt=static_from_buildtype', 'b_ndebug=if-release'])
static_library('zccplusplus', 'zctest.cpp')
zctest.cpp:
#if __cplusplus == 199711L
#error Zc:__cplusplus flag not set
#endif
To reproduce:
meson setup --backend=vs vbuild
meson compile -C vbuild
The error is not shown if --backend=ninja is used instead.
Expected behavior
/Zc:__cplusplus should be consistently set for every back-end when configuring with MSVC.
system parameters
- Is this a cross build or just a plain native build (for the same computer)?
Native
- what operating system (e.g. MacOS Catalina, Windows 10, CentOS 8.0, Ubuntu 18.04, etc.)
Windows 11, with MSVC 17.13.6
- what Python version are you using e.g. 3.8.0
The one bundled with the meson.msi installer.
- what
meson --version
1.7.1
- what
ninja --versionif it's a Ninja build
1.12.1 (but it's the --backend=vs that is broken)
Not urgent, can be easily worked around by adding add_project_arguments('/Zc:__cplusplus', language: 'cpp') (because ninja isn't hurt by the redundant setting).