Building emacs 24.3 on powerpc-apple-darwin gives me the
following error:

--- snip ---

gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I/Volumes/UFS_exp2/exptools/expmake/build/gnuemacs2src/emacs-24.3/lib -I../src -I/Volumes/UFS_exp2/exptools/expmake/build/gnuemacs2src/emacs-24.3/src   -I/opt/exp/gnu/include   -g3 -O2 -MT careadlinkat.o -MD -MP -MF .deps/careadlinkat.Tpo -c -o careadlinkat.o careadlinkat.c
In file included from unistd.h:43,
                 from careadlinkat.h:24,
                 from careadlinkat.c:23:
/usr/include/unistd.h:240: error: conflicting types for `rpl_readlink'
unistd.h:1559: error: previous declaration of `rpl_readlink'

--- snip ---


Looking at the 2 definitions of readlink I see in /usr/include/unistd.h:

int	 readlink(const char *, char *, int);


and in emacs-24.3/lib/unistd.h

_GL_FUNCDECL_RPL (readlink, ssize_t,
                  (const char *file, char *buf, size_t bufsize)
                  _GL_ARG_NONNULL ((1, 2)));


So it seems the 3rd parameter is different. Also I wonder why we include
2 different unistd.h files in the first place.


Attached is the complete configure/compile log.