change errno to static linkage (improves PIC code generation)

diff --git a/src/errno/__errno_location.c b/src/errno/__errno_location.c
index 0a220b6..a018578 100644 (file)
--- a/src/errno/__errno_location.c
+++ b/src/errno/__errno_location.c
@@ -1,11 +1,9 @@
 #include <errno.h>
 #include "libc.h"
 
-#undef errno
-int errno;
-
 int *__errno_location(void)
 {
+       static int e;
        if (libc.errno_location) return libc.errno_location();
-       return &errno;
+       return &e;
 }