jehanne: add fcntl

newlib/configure.host

@@ -603,6 +603,7 @@ case "${host}" in
 	CC="${CC} -I${jehanne_srcdir}/include"
 	newlib_cflags="${newlib_cflags} -DREENTRANT_SYSCALLS_PROVIDED -DMALLOC_PROVIDED -DSIGNAL_PROVIDED"
 	newlib_cflags="${newlib_cflags} -D_NO_GETLOGIN -D_NO_GETCWD -D_NO_GETPASS -D_NO_GETUT -D_NO_PWRITE -D_NO_PREAD"
+	newlib_cflags="${newlib_cflags} -DHAVE_FCNTL"
 	newlib_cflags="${newlib_cflags} -fno-omit-frame-pointer"
 	;;
   *-*-phoenix*)

newlib/libc/sys/jehanne/syscalls.c

@@ -213,6 +213,13 @@ _gettimeofday_r(struct _reent *r, struct timeval *p, void *z)
 	return POSIX_gettimeofday(errnop, p, z);
 }
 
+int
+_fcntl_r(struct _reent *r, int fd, int cmd, int arg)
+{
+	int *errnop = &r->_errno;
+	return POSIX_fcntl(errnop, fd, cmd, arg);
+}
+
 unsigned int
 sleep(unsigned int seconds)
 {