case "${host_cpu}-${host_os}" in
*-aix* | *-freebsd* | *-darwin*) x_rflag="-D_THREAD_SAFE";;
*solaris* | *-osf* | *-hpux*) x_rflag="-D_REENTRANT";;
- *-linux*)
+ *-linux* | *-k*bsd*-gnu*)
if test x"$PTHREAD_CFLAGS" = "x-pthread"; then
# For Linux/gcc "-pthread" implies "-lpthread". We need, however, to make this explicit
# in PTHREAD_LIBS such that a shared library to be built properly depends on libpthread.