bison build was failing with:
undefined reference to `__fseterr\'
in function `rpl_fprintf'
in function `rpl_vfprintf'
because the relibc recipe was missing P3-stdio-fseterr.patch, which
implements `__freadahead` and `__fseterr` in src/header/stdio/ext.rs
and adds the stdio_ext.h prototypes needed by gnulib (which m4, bison,
and flex all rely on).
The patch file was already present in local/patches/relibc/ with a
symlink at recipes/core/relibc/P3-stdio-fseterr.patch, but the recipe
never listed it. Without these symbols, any gnulib-using package that
links rpl_fprintf/rpl_vfprintf fails to link.
This is the same fix that was already applied to local/sources/relibc
fork at commit f45729d4 but not mirrored into the recipe patch chain
for upstream builds.
vasilito
a07df50a6c