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meson: Use --no-wchar-size-warning

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This only disables the one warning that we care to ignore, making
sure that any future issues do not get masked.
This commit is contained in:
Jan Janssen
2022-01-26 12:29:57 +01:00
parent b6167d9611
commit 7afd0196b6
1 changed files with 5 additions and 11 deletions
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16
src/boot/efi/meson.build
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@@ -256,17 +256,11 @@ else
endif
if efi_arch[1] == 'arm'
# On arm, the compiler (correctly) gives us the following warning:
# libgcc.a(_popcountsi2.o) uses 4-byte wchar_t yet the output is to
# use 2-byte wchar_t; use of wchar_t values across objects may fail
#
# libgcc does not have any occurrences of wchar_t in its sources or the
# documentation, so it's safe to assume that we can ignore this warning.
#
# So far, this only happens with arm due to popcount even though x86 and
# x86_64 also have to rely on libgcc's popcount. Therefore, we only disable
# this for arm to make sure this doesn't mask other issues in the future.
efi_ldflags += ['-Wl,--no-warn-mismatch']
# On arm, the compiler (correctly) warns about wchar_t size mismatch. This
# is because libgcc is not compiled with -fshort-wchar, but it does not
# have any occurrences of wchar_t in its sources or the documentation, so
# it is safe to assume that we can ignore this warning.
efi_ldflags += ['-Wl,--no-wchar-size-warning']
endif
if run_command('grep', '-q', '__CTOR_LIST__', efi_lds, check: false).returncode() == 0