When compiling with -O0, linuxthreads does not compile.  So add a local override changing -O0 to -O1 only for that directory.
When compiling with -O0, linuxthreads does not compile.  So add
a local override changing -O0 to -O1 only for that directory.

joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc