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-rw-r--r--lib/stdbool.mini.h15
1 files changed, 12 insertions, 3 deletions
diff --git a/lib/stdbool.mini.h b/lib/stdbool.mini.h
index 29736b7..7bdec72 100644
--- a/lib/stdbool.mini.h
+++ b/lib/stdbool.mini.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2003, 2006-2017 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2003, 2006-2022 Free Software Foundation, Inc.
Written by Bruno Haible <haible@clisp.cons.org>, 2001.
This program is free software; you can redistribute it and/or modify
@@ -96,8 +96,17 @@
/* The other macros must be usable in preprocessor directives. */
#ifdef __cplusplus
-# define false false
-# define true true
+# if !defined _MSC_VER
+# define false false
+# define true true
+# endif
+/* In Sun C++ 5.11 (Solaris Studio 12.2) and older, 'true' as a preprocessor
+ expression evaluates to 0, not 1. Fix this by overriding 'true'. Note that
+ the replacement has to be of type 'bool'. */
+# if defined __SUNPRO_CC && true != 1
+# undef true
+# define true (!false)
+# endif
#else
# undef false
# define false 0