https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106271
Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |doko at gcc dot gnu.org
--- Comment #4 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
..., and then I wondered: but how, then, are Debian/Ubuntu building GCC?
Per <https://packages.debian.org/experimental/gcc-13>,
<http://deb.debian.org/debian/pool/main/g/gcc-13/gcc-13_13.1.0-3.debian.tar.xz>,
there is a 'debian/patches/gcc-multiarch.diff' file, which contains "Remaining
multiarch patches, not yet submitted upstream", which (amongst others)
includes:
--- a/src/gcc/config/riscv/t-linux
+++ b/src/gcc/config/riscv/t-linux
@@ -1,3 +1,5 @@
# Only XLEN and ABI affect Linux multilib dir names, e.g. /lib32/ilp32d/
MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst
rv64%,lib64,$(MULTILIB_DIRNAMES)))
MULTILIB_OSDIRNAMES := $(patsubst lib%,../lib%,$(MULTILIB_DIRNAMES))
+
+MULTIARCH_DIRNAME := $(call if_multiarch,$(firstword $(subst -,
,$(target)))-linux-gnu)
