https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99552
--- Comment #2 from dave.anglin at bell dot net --- On 2021-03-11 10:08 a.m., redi at gcc dot gnu.org wrote: >> Usually, I add "-fno-common" to avoid these warnings on hppa*-*-hpux*. > Isn't that redundant for C++, and on by default for C in GCC 11 anyway? You are correct - it doesn't work to suppress warning. However, ASM_OUTPUT_ALIGNED_COMMON is still being used.