> After I ported libtiff library then I tried to compile simple tiff
> program, I found this error:
>
> TLS definition in libuc_c.a(errno.o) section .tbss mismatches non-TLS
>  reference in libtiff.so
>
> libuc_c.a: could not read symbols: Bad value
>
>
> What does it mean?

Looks like a shared libtiff is being linked to an otherwise static
program. How does the Makefile of your libtiff program look like?