Bionic's vfork is rather broken, and seems to corrupt the stack,
especially when the parent returns before the child completes. For
now, replace vfork with fork until the issues are sorted out.
int addmntent(struct __sFILE *, const struct mntent *);
struct mntent *getmntent_r(struct __sFILE *fp, struct mntent *mnt, char *buf, int buflen);
+/* bionic's vfork is rather broken; for now a terrible bandaid: */
+#define vfork fork
+
#endif