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msvc_recommended_pragmas.h: Refine for clang-cl

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Make msvc_recommended_pragmas.h work better with clang-cl so that we can
use that to eliminate some warnings that are emitted as it also consumes
Microsoft compiler and SDK headers.

Also, for GLib builds, force-include msvc_recommended_pragmas.h for
clang-cl builds as well, as it becomes usable and useful there.

Fixes issue #2357.
This commit is contained in:
Chun-wei Fan 2021-03-20 10:15:02 +08:00
parent 622b31f69e
commit 97959cd7eb
2 changed files with 12 additions and 5 deletions
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13
meson.build
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@ -14,18 +14,23 @@ cxx = meson.get_compiler('cpp')
cc_can_run = not meson.is_cross_build() or meson.has_exe_wrapper()
if cc.get_id() == 'msvc'
if cc.get_argument_syntax() == 'msvc'
# Ignore several spurious warnings for things glib does very commonly
# (also for clang-cl)
add_project_arguments('/FImsvc_recommended_pragmas.h',language : 'c')
endif
if cc.get_id() == 'msvc'
# If a warning is completely useless and spammy, use '/wdXXXX' to suppress it
# If a warning is harmless but hard to fix, use '/woXXXX' so it's shown once
# NOTE: Only add warnings here if you are sure they're spurious
add_project_arguments('/wd4035', '/wd4715', '/wd4116',
'/wd4046', '/wd4068', '/wo4090', '/FImsvc_recommended_pragmas.h',language : 'c')
'/wd4046', '/wd4068', '/wo4090',language : 'c')
# Set the input and exec encoding to utf-8, like is the default with GCC
add_project_arguments(cc.get_supported_arguments(['/utf-8']), language: 'c')
# Disable SAFESEH with MSVC for plugins and libs that use external deps that
# are built with MinGW
noseh_link_args = ['/SAFESEH:NO']
# Set the input and exec encoding to utf-8, like is the default with GCC
add_project_arguments(cc.get_supported_arguments(['/utf-8']), language: 'c')
else
noseh_link_args = []
# -mms-bitfields vs -fnative-struct ?

4
msvc_recommended_pragmas.h
View File

@ -1,10 +1,11 @@
#ifndef _MSC_VER
#pragma error "This header is for Microsoft VC only."
#pragma error "This header is for Microsoft VC or clang-cl only."
#endif /* _MSC_VER */
/* Make MSVC more pedantic, this is a recommended pragma list
* from _Win32_Programming_ by Rector and Newcomer.
*/
#ifndef __clang__
#pragma warning(error:4002) /* too many actual parameters for macro */
#pragma warning(error:4003) /* not enough actual parameters for macro */
#pragma warning(1:4010) /* single-line comment contains line-continuation character */
@ -33,6 +34,7 @@
#pragma warning(disable:4305) /* No truncation from int to char warnings */
#pragma warning(error:4819) /* The file contains a character that cannot be represented in the current code page */
#endif /* __clang__ */
/* work around Microsoft's premature attempt to deprecate the C-Library */
#define _CRT_SECURE_NO_WARNINGS