In libc_r, rename vfork syscall to _thread_sys_vfork and make vfork an alias

to fork. It is difficult to do real vfork in libc_r, since almost every
operation with file descriptsor changes _thread_fd_table and friends.

popen(3) works much better with this change.

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/libpthread/thread/thr_vfork.c b/lib/libpthread/thread/thr_vfork.c
new file mode 100644
index 0000000..bbfcf00
--- /dev/null
+++ b/lib/libpthread/thread/thr_vfork.c
@@ -0,0 +1,9 @@
+#include <unistd.h>
+#ifdef _THREAD_SAFE
+
+int
+vfork(void)
+{
+	return (fork());
+}
+#endif