"Robert P. J. Day" <rpjday@xxxxxxxxxxxxxx> writes: > is there a gcc invocation i can run to see if that build has TLS > support? thanks. echo '__thread int i;' > foo.c gcc -c foo.c >/dev/null 2>&1 if test $? != 0; then echo no TLS support in gcc fi If you are looking for something else, can you clarify what you are looking for? Ian