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-rw-r--r--libcpp/system.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/libcpp/system.h b/libcpp/system.h
index a2e8c26..20f07bb 100644
--- a/libcpp/system.h
+++ b/libcpp/system.h
@@ -391,6 +391,15 @@ extern void abort (void);
#define __builtin_expect(a, b) (a)
#endif
+#ifdef ENABLE_CHECKING
+#define gcc_checking_assert(EXPR) gcc_assert (EXPR)
+#define CHECKING_P 1
+#else
+/* N.B.: in release build EXPR is not evaluated. */
+#define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
+#define CHECKING_P 1
+#endif
+
/* Provide a fake boolean type. We make no attempt to use the
C99 _Bool, as it may not be available in the bootstrap compiler,
and even if it is, it is liable to be buggy.