Fw: ppc64le build failures in the mass rebuild

[Dan Horák]

Hi,

as there are still a number of ppc64le build failures from the mass
rebuild, please make the FTBFS bugs block the "PPCTracker" so we know
about them.

Here is what we know so far
- segfaulting ICE with "during RTL pass: final" or not being able to
assemble the sources, those should be fixed in gcc-12.0.1-0.3.fc36, so
a rebuild should fix them

- issues with "__LDBL_REDIR1_DECL", they are caused by the bundled
gnulib not being compatible with the installed glibc, a fix is to
replace the bundled cdefs.h with more recent one
(https://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob;f=lib/cdefs.h;h=...),
seen eg in lftp (https://bugzilla.redhat.com/show_bug.cgi?id=2045780)
or dhcpd-pools (https://bugzilla.redhat.com/show_bug.cgi?id=2045310)

- various "long double" related issues, some might be fixed by building
in proper order, but some will need further investigation, a corner
case in libffi should be fixed in
https://src.fedoraproject.org/rpms/libffi/pull-request/6

- various "vector" related issues/ICE, for example in cantera or mame

- libtool de-duplicating internal libs, when it shouldn't, like
/usr/bin/ld: /usr/lib/gcc/ppc64le-redhat-linux/12/libgcc.a(float128-ifunc.o):
(.data+0x0): undefined reference to
`__parse_hwcap_and_convert_at_platform',
this is a generic problem, a fix is proposed in
https://bugzilla.redhat.com/show_bug.cgi?id=2047389
and workaround is
https://src.fedoraproject.org/rpms/codeblocks/c/c8f36775a26f79d598e886a82...

- something else?


	Thanks,

		Dan