libiberty compiles getopt1.c against GCC's include/getopt.h, which
declares the GNU-internal _getopt_internal. relibc ships a getopt.h that
does not declare it and was shadowing GCC's:
getopt1.c:71: error: implicit declaration of function
'_getopt_internal'
Same shape as the cpuid.h shadowing already handled in recipes/dev/gcc13.
Verified: _getopt_internal errors 5 -> 0.
STILL FAILING, on a new and different phase: the HOST libstdc++ headers
are being pulled into the build --
/usr/include/c++/16/x86_64-pc-linux-gnu/bits/os_defines.h:44:
error: missing binary operator before token '('
which is __GLIBC_PREREQ evaluated where there is no glibc. That is a
host/target header leak, not a continuation of the getopt problem, and it
is unrelated to this commit's change.
vasilito
d9b408d7de