This should fix PR ada/91268 by only defining macros if not already
done.
Tested on x86_64-pc-linux-gnu, committed on trunk
2019-09-17 Arnaud Charlet <char...@adacore.com>
gcc/ada/
* adaint.c (_REENTRANT, _THREAD_SAFE): Only define if needed.--- gcc/ada/adaint.c
+++ gcc/ada/adaint.c
@@ -35,8 +35,14 @@
library calls directly. This file contains all other routines. */
/* Ensure access to errno is thread safe. */
+
+#ifndef _REENTRANT
#define _REENTRANT
+#endif
+
+#ifndef _THREAD_SAFE
#define _THREAD_SAFE
+#endif
/* Use 64 bit Large File API */
#if defined (__QNX__)
