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Message-ID: <20190517153537.teffxwvopvhs36fe@gmail.com>
Date: Fri, 17 May 2019 23:35:37 +0800
From: Fangrui Song <i@...kray.me>
To: musl@...ts.openwall.com
Subject: [PATCH] config.mak: add AR/RANLIB and delete ASMSUBARCH
By default, if I specify --target=aarch64, AR=aarch64-ar is used, which is apparently not available.
With this patch, I am able to build an aarch64 musl with:
../configure --target=aarch64 AR=llvm-ar RANLIB=true CC=clang CFLAGS=--target=aarch64-linux-musl LDFLAGS="-fuse-ld=lld -L/path/to/aarch64/libgcc.a/and/libgcc_eh.a" --enable-debug
ASMSUBARCH is no longer in use as of commit 0f814a4e57e80d2512934820b878211e9d71c93e.
You may also delete the following line
test -z "$LIBCC" && tryldflag LIBCC -lcompiler_rt
because compiler-rt (part of which is nearly a replacement of libgcc) is something like:
/home/ray/llvm/Release/lib/clang/9.0.0/lib/linux/libclang_rt.builtins-x86_64.a
not libcompiler_rt.a
% clang -print-resource-dir
/home/ray/llvm/Release/lib/clang/9.0.0
% clang -rtlib=compiler-rt -print-libgcc-file-name
/home/ray/llvm/Release/lib/clang/9.0.0/lib/linux/libclang_rt.builtins-x86_64.a
BTW, I am not sure if libgcc_eh.a is needed.
View attachment "musl.patch" of type "text/x-diff" (1338 bytes)
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