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-rw-r--r--sysdeps/unix/sysv/linux/errnos.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/errnos.h b/sysdeps/unix/sysv/linux/errnos.h
index 868819e6b3..8a7055aa6a 100644
--- a/sysdeps/unix/sysv/linux/errnos.h
+++ b/sysdeps/unix/sysv/linux/errnos.h
@@ -29,5 +29,11 @@ extern int __errno;
 extern int *__errno_location __P ((void)) __attribute__ ((__const__));
 #define errno	(*__errno_location ())
 
+#define __set_errno(val) errno = __errno = (val)
+
+#else /* !__USE_REENTRENT || (_LIBC && !_LIBC_REENTRANT) */
+
+#define __set_errno(val) errno = (val)
+
 #endif
 #endif