sem_trywait changes broke sparc

[David Miller]

The testsuite no longer runs because links fail with:

/home/davem/src/GIT/GLIBC/build-sparcv9/nptl/tst-sem1.o: In function `do_test':
/home/davem/src/GIT/GLIBC/glibc/nptl/tst-sem1.c:48: undefined reference to `sem_trywait'
/home/davem/src/GIT/GLIBC/glibc/nptl/tst-sem1.c:55: undefined reference to `sem_trywait'
collect2: ld returned 1 exit status

A little late in the game to be installing changes like this perhaps?