Make defconfig build for nommu.

Adds XVFORK() macro, teaches xpopen_both() to call /proc/self/exe with NULL
argv (and converts cpio -p to use that), adds TOYBOX_FORK guards to some
unconverted commands.

1 files changed, 2 insertions, 11 deletions

diff --git a/lib/lib.h b/lib/lib.h
index d76dcc0c..90f44dcb 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -247,17 +247,8 @@ void mode_to_string(mode_t mode, char *buf);
 char *basename_r(char *name);
 void names_to_pid(char **names, int (*callback)(pid_t pid, char *name));
 
-// Returning from a function can modify a potentially shared stack,
-// so this has to always inline.
-static inline pid_t xvfork(void)
-{
-  pid_t p;
-
-  toys.stacktop = 0;
-  if ((p = vfork()) == -1) perror_exit("vfork");
-
-  return p;
-}
+pid_t xvforkwrap(pid_t pid);
+#define XVFORK() xvforkwrap(vfork())
 
 // Functions in need of further review/cleanup
 #include "lib/pending.h"