diff options
Diffstat (limited to 'clang/lib/Headers/__stddef_nullptr_t.h')
| -rw-r--r-- | clang/lib/Headers/__stddef_nullptr_t.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/clang/lib/Headers/__stddef_nullptr_t.h b/clang/lib/Headers/__stddef_nullptr_t.h index 183d394d56c1..7f3fbe6fe0d3 100644 --- a/clang/lib/Headers/__stddef_nullptr_t.h +++ b/clang/lib/Headers/__stddef_nullptr_t.h @@ -7,7 +7,12 @@ *===-----------------------------------------------------------------------=== */ -#ifndef _NULLPTR_T +/* + * When -fbuiltin-headers-in-system-modules is set this is a non-modular header + * and needs to behave as if it was textual. + */ +#if !defined(_NULLPTR_T) || \ + (__has_feature(modules) && !__building_module(_Builtin_stddef)) #define _NULLPTR_T #ifdef __cplusplus |