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Merge branch 'ms-bitfield' into 'main'

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meson: warn if -mms-bitfields is necessary

See merge request GNOME/glib!3519
This commit is contained in:
Philip Withnall 2023-08-14 08:16:02 +00:00
commit da47d030d4
1 changed files with 14 additions and 0 deletions
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meson.build
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@ -2358,6 +2358,20 @@ if host_system == 'windows' and cc.get_id() != 'msvc' and cc.get_id() != 'clang-
# Ensure MSVC-compatible struct packing convention is used when
# compiling for Win32 with gcc. It is used for the whole project and exposed
# in glib-2.0.pc.
if not cc.compiles('''
struct _GTestMSBitfields
{
int a : 1;
short b : 1;
};
typedef char _StaticCheck[sizeof(struct _GTestMSBitfields) != sizeof(int) ? 1 : -1];
''')
warning('''
Your compiler does not have ms-bitfields packing by default.
Please use gcc >= 4.7 or clang >= 12: GLib will drop -mms-bitfields in the future.
''')
endif
win32_cflags = ['-mms-bitfields']
add_project_arguments(win32_cflags, language : 'c')