On Fri, 2023-06-09 at 14:50 +0800, Tiezhu Yang wrote: /* snip */ > > > > In musl, the documentation states that at least gcc-3.4 or > > > > clang-3.2 are required, which probably predate the > > > > __SIZEOF_LONG__ macro. Indeed, I've digged some history and __SIZEOF_LONG__ was added into GCC- 4.3 (in 2008). And I didn't realize the bitsperlong.h in tools directory is a copy from uapi. > > > > On the other hand, musl was only > > > > released in 2011, and building musl itself explicitly > > > > does not require kernel uapi headers, so this may not > > > > be too critical. > Only arm64, riscv and loongarch belong to the newer architectures > which are related with this change, I am not sure it is necessary > to "unify" uapi bitsperlong.h for them. At least it will stop the engineers working on "the next architecture" from adding an unneeded bitsperlong.h :). -- Xi Ruoyao <xry111@xxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University
