For internal C++ code, unconditionally define NULL as nullptr.
We already require a C++11 compiler to bootstrap GCC anyway.

Link: <https://software.codidact.com/posts/292718>
Signed-off-by: Alejandro Colomar <a...@kernel.org>
---
 libgm2/libm2pim/wrapc.cc | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/libgm2/libm2pim/wrapc.cc b/libgm2/libm2pim/wrapc.cc
index 5c31f1e2687..cdd1cf0d0fe 100644
--- a/libgm2/libm2pim/wrapc.cc
+++ b/libgm2/libm2pim/wrapc.cc
@@ -63,10 +63,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If 
not, see
 #include <fcntl.h>
 #endif
 
-/* Define a generic NULL if one hasn't already been defined.  */
-
 #if !defined(NULL)
-#define NULL 0
+#define NULL nullptr
 #endif
 
 /* strtime returns the address of a string which describes the
-- 
2.45.2

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