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-rw-r--r--libio/libioP.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libio/libioP.h b/libio/libioP.h
index f5e6dc5a0e..d3c871fbeb 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -397,7 +397,7 @@ extern struct _IO_fake_stdiobuf _IO_stdin_buf, _IO_stdout_buf, _IO_stderr_buf;
 #endif
 
 #ifdef EINVAL
-#define MAYBE_SET_EINVAL errno = EINVAL
+#define MAYBE_SET_EINVAL __set_errno (EINVAL)
 #else
 #define MAYBE_SET_EINVAL /* nothing */
 #endif