ppc64le build failures in the mass rebuild

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