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[build] Disable gcc unterminated-string-initializer warnings

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GCC 15 generates a warning when a string initializer is too large to
allow for a trailing NUL terminator byte.  This type of initializer is
fairly common in signature strings such as ACPI table identifiers.

Fix by disabling the warning.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2025-04-27 18:01:24 +01:00
parent 15c1111c78
commit bd4ca67cf4
1 changed files with 9 additions and 0 deletions
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9
src/Makefile.housekeeping
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@@ -368,6 +368,15 @@ WNAPM_FLAGS := $(shell $(WNAPM_TEST) && \
WORKAROUND_CFLAGS += $(WNAPM_FLAGS)
endif
# gcc 15 generates warnings for fixed-length character array
# initializers that lack a terminating NUL. Inhibit the warnings.
#
WNUSI_TEST = $(CC) -Wunterminated-string-initialization -x c -c /dev/null \
-o /dev/null >/dev/null 2>&1
WNUSI_FLAGS := $(shell $(WNUSI_TEST) && \
$(ECHO) '-Wno-unterminated-string-initialization')
WORKAROUND_CFLAGS += $(WNUSI_FLAGS)
# Some versions of gas choke on division operators, treating them as
# comment markers. Specifying --divide will work around this problem,
# but isn't available on older gas versions.