It seems like two bugs in gcc:
> > case BUILT_IN_VA_ARG_PACK:
> > /* All valid uses of __builtin_va_arg_pack () are removed during
> > inlining. */
> > error ("%Kinvalid use of %<__builtin_va_arg_pack ()%>", exp);
> > return const0_rtx;
The first bug is that one use is not removed; the second bug is that it
is not detected and the error does not come up until linking.
Please give me offlist the following information so that I can try to
reproduce it and submit it to the GCC bugzilla site:
1) preprocessed source code. Run this
make clean
make CFLAGS="--save-temps -O2 -g" usage.o
and send the usage.i and usage.s files.
2) Exact compiler version that you're using, i.e. the output of "gcc
--version".
3) Output of "./config.guess" from the m4 build directory.
