While building host-localedef from glibc 2.38 sources, it uses the
features.h header from its sources that define _ISOC2X_SOURCE 1 as
soon as _GNU_SOURCE is defined.
_ISOC2X_SOURCE enable __GLIBC_USE_ISOC2X 1 that enable the header
redirection to use __isoc23_* functions introduced in glibc 2.38 [1].
If an older version is installed on the host, those functions
doesn't exist and break the build.
Add a local patch to keep _ISOC2X_SOURCE and __GLIBC_USE_ISOC2X
disabled.
Fixes:
host-localedef-2.38-13-g92201f16cbcfd9eafe314ef6654be2ea7ba25675/build/locale/ld-ctype.o: in function `ctype_read':
ld-ctype.c:(.text+0x6cef): undefined reference to `__isoc23_strtoul'
(glibc 2.31 installed on the host)
[1] https://sourceware.org/git/?p=glibc.git;a=commit;h=64924422a99690d147a166b4de3103f3bf3eaf6c
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
d3fd120a79