CLANGPDB does not define __GNUC__, but it does define __clang__. Check for the __clang__ preprocessor definition to use __builtin_offsetof to implement the OFFSET_OF macro.
Cc: Michael D Kinney <michael.d.kin...@intel.com> Cc: Liming Gao <liming....@intel.com> Signed-off-by: Alex James <theracermas...@gmail.com> --- MdePkg/Include/Base.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/MdePkg/Include/Base.h b/MdePkg/Include/Base.h index 4680e64136..e0bcd0ae67 100644 --- a/MdePkg/Include/Base.h +++ b/MdePkg/Include/Base.h @@ -781,11 +781,9 @@ typedef UINTN *BASE_LIST; @return Offset, in bytes, of field. **/ -#ifdef __GNUC__ -#if __GNUC__ >= 4 +#if (defined(__GNUC__) && __GNUC__ >= 4) || defined(__clang__) #define OFFSET_OF(TYPE, Field) ((UINTN) __builtin_offsetof(TYPE, Field)) #endif -#endif #ifndef OFFSET_OF #define OFFSET_OF(TYPE, Field) ((UINTN) &(((TYPE *)0)->Field)) -- 2.24.0 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#51446): https://edk2.groups.io/g/devel/message/51446 Mute This Topic: https://groups.io/mt/64067723/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
