# HG changeset patch
# User Daniel O'Connor <darius@dons.net.au>
# Date 1364272786 -37800
# Node ID 2ecde7a4bc55c3623fe2a09e49604cef1870f7e0
# Parent  1fdfbad9eca7cf7f6f54c5e68e4d3766539eb8ce
Don't use evil errno kludge, write a function that libc can use.

diff -r 1fdfbad9eca7 -r 2ecde7a4bc55 syscalls.c
--- a/syscalls.c	Mon Mar 11 19:52:03 2013 +1030
+++ b/syscalls.c	Tue Mar 26 15:09:46 2013 +1030
@@ -17,8 +17,12 @@
 #include "rtc.h"
 #include "stm32f10x.h" /* for _get_PSP() from core_cm3.h*/
 
-#undef errno
-extern int errno;
+int *
+__errno(void) {
+    static int _errno;
+    
+    return(&errno);
+}
 
 int
 _kill(int pid, int sig) {