https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80117
--- Comment #23 from Timo Teräs <timo.teras at iki dot fi> --- (In reply to Andrew Pinski from comment #22) > (In reply to Timo Teräs from comment #21) > > This caused a regression for non-multilib builds. Now my non-multilib lp64 > > build fails with: > > a-cfinve.ads:245:04: warning: in instantiation at a-coboho.adb:55 > > a-cfinve.ads:245:04: warning: types for unchecked conversion have different > > sizes > > > > Probably because the logic added in this patch to Makefile.in picks up > > 64-bit file only when multilib is enabled. > > On which branch? The logic for GCC 7 and GCC 8 are different as Makefile.in > changes are not used any more. Also did you modify anything as multilib > itself should be enabled anyways for aarch64 due to the use /lib64 GCC 6.4.0 with some patches. Should have looked how it detects the multilib type. We have the build hardwired to use /lib always with --- ./gcc/config/aarch64/t-aarch64-linux.orig +++ ./gcc/config/aarch64/t-aarch64-linux @@ -22,7 +22,7 @@ LIB1ASMFUNCS = _aarch64_sync_cache_range AARCH_BE = $(if $(findstring TARGET_BIG_ENDIAN_DEFAULT=1, $(tm_defines)),_be) -MULTILIB_OSDIRNAMES = mabi.lp64=../lib64$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu) +MULTILIB_OSDIRNAMES = mabi.lp64=../lib MULTIARCH_DIRNAME = $(call if_multiarch,aarch64$(AARCH_BE)-linux-gnu) MULTILIB_OSDIRNAMES += mabi.ilp32=../libilp32 So it's conflict between this. This works everywhere else, so I wonder if we could have the ada makefile check the abi somehow more reliably than pathname?
