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syslinux: Disable error on implicit-function-declaration

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syslinux has vendored copy of ext2fs/ext2_fs.h but uses ext2fs/ext2fs.h
from e2fsprogs package, however, ext2fs/ext2fs.h has dependencies on
ext2fs/ext2_fs.h coming from e2fsprogs package as these both headers
come from same package, here syslinux uses ext2fs.h from e2fsprogs but
supplies its own copy of ext2_fs.h which maybe out of sync and that
results in warnings about implicit implicit-function-declarations
e.g.

recipe-sysroot/usr/include/ext2fs/ext2fs.h:727:16: error: implicit declaration of function 'ext2fs_has_feature_gdt_csum' [-Wimplicit-function-declaration]
|   727 |                ext2fs_has_feature_gdt_csum(fs->super);
|       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~

ext2fs_has_feature_gdt_csum here comes from newer version of
ext2fs/ext2_fs.h but missing from vendored copy, hence the warning.

With gcc-14 this warning is treated as error by default, which breaks
the build, so lets treat it as warning only.

All these functions are never used in syslinux, so functionality-wise we
are fine.

(From OE-Core rev: 14fdee535c37aaa44898dc22149004c97b2456ca)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit a2b30108055e68b62fdad7319d7d569bc38a07b4)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Khem Raj 2024-02-02 00:19:08 -08:00 committed by Steve Sakoman
parent b41fb087da
commit dfe311ef7a
1 changed files with 1 additions and 1 deletions
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meta/recipes-devtools/syslinux/syslinux_6.04-pre2.bb
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@ -48,7 +48,7 @@ TARGET_LDFLAGS = ""
SECURITY_LDFLAGS = ""
LDFLAGS_SECTION_REMOVAL = ""
CFLAGS:append = " -DNO_INLINE_FUNCS"
CFLAGS:append = " -DNO_INLINE_FUNCS -Wno-error=implicit-function-declaration"
EXTRA_OEMAKE = " \
BINDIR=${bindir} SBINDIR=${sbindir} LIBDIR=${libdir} \