back to the can...
p4raw-id: //depot/perl@15335
cat > UU/usethreads.cbu <<'EOCBU'
case "$usethreads" in
$define|true|[yY]*)
- ccflags="-D_REENTRANT -D_POSIX_C_SOURCE=199506L $ccflags"
+ ccflags="-D_REENTRANT $ccflags"
set `echo X "$libswanted "| sed -e 's/ c / pthread c /'`
shift
libswanted="$*"