Re: [PATCH 2/2] Makefile: Only specify '--prefix=' when building with clang + GNU as

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On 2021-03-02, Nathan Chancellor wrote:
When building with LLVM_IAS=1, there is no point to specifying
'--prefix=' because that flag is only used to find the cross assembler,
which is clang itself when building with LLVM_IAS=1. All of the other
tools are invoked directly from PATH or a full path specified via the
command line, which does not depend on the value of '--prefix='.

Sharing commands to reproduce issues becomes a little bit easier without
a '--prefix=' value because that '--prefix=' value is specific to a
user's machine due to it being an absolute path.

Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>

Reviewed-by: Fangrui Song <maskray@xxxxxxxxxx>

clang can spawn GNU as (if -f?no-integrated-as is specified) and GNU
objcopy (-f?no-integrated-as and -gsplit-dwarf and -g[123]).

With LLVM_IAS=1, these cases are ruled out.



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