Switch NetBSD from clone(2) to kproc-pthreads.c

This commit is mostly a pretty mechanical change.
It works on NetBSD-6 where pthread uses userland semaphores.
It doesn't work on NetBSD-7 where pthread uses kernel semaphores.

1 files changed, 7 insertions, 0 deletions

diff --git a/emu/port/kproc-pthreads.c b/emu/port/kproc-pthreads.c
index 32053794..a15a7cd3 100644
--- a/emu/port/kproc-pthreads.c
+++ b/emu/port/kproc-pthreads.c
@@ -12,6 +12,13 @@
 #include	<errno.h>
 #include	<semaphore.h>
 
+#ifdef __NetBSD__
+#include	<sched.h>
+#define pthread_yield() (sched_yield())
+#define PTHREAD_STACK_MIN ((size_t)sysconf(_SC_THREAD_STACK_MIN))
+#endif
+
+
 typedef struct Osdep Osdep;
 struct Osdep {
 	sem_t	sem;