failed_assert(#a, __FILE__, __LINE__); \
} while (0)
extern void failed_assert(char *a, char *file, int line);
+void pipe_spawn(char *buf, unsigned int len, Display *dpy, const char *cmd);
+extern void spawn(Display *dpy, const char *cmd);
extern void swap(void **p1, void **p2);
-extern void spawn(Display *dpy, const char *shell, const char *cmd);