[PATCH] system.h: Poison strndup (PR bootstrap/78616)

[David Malcolm]

This patch poisons strndup (in system.h), as requested in the
discussion of PR bootstrap/78616.

Successfully bootstrapped&regrtested on x86_64-pc-linux-gnu.

OK for trunk?

gcc/ChangeLog:
	PR bootstrap/78616
	* system.h: Poison strndup.
---
 gcc/system.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gcc/system.h b/gcc/system.h
index 0cd58db..c0f08a9 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -840,7 +840,8 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
 #ifndef USES_ISL
 #undef calloc
 #undef strdup
- #pragma GCC poison calloc strdup
+#undef strndup
+ #pragma GCC poison calloc strdup strndup
 #endif
 
 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
-- 
1.8.5.3