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RISC-V: Add multiarch support on riscv-linux-gnu

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This adds multiarch support to the RISC-V port so that bootstraps work with
Debian out-of-the-box.  Without this patch the stage1 compiler is unable to
find headers/libraries when building the stage1 runtime.

This is functionally (and possibly textually) equivalent to Debian's fix for
the same problem.

gcc/
	* config/riscv/t-linux: Add MULTIARCH_DIRNAME.
This commit is contained in:
Raphael Moreira Zinsly 2023-08-22 11:37:04 -06:00 • committed by Jeff Law
parent 0698c9fddf
commit 47f95bc4be
1 changed files with 2 additions and 0 deletions
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2
gcc/config/riscv/t-linux
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@ -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)