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https://github.com/llvm/llvm-project.git
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7db970fe4a
Fixes failures like this which I experienced:
```
FAILED: src/unistd/linux/CMakeFiles/libc.src.unistd.linux.read.dir/read.cpp.o
/nix/store/2r2xi5pbg29bsmqywsm5zgl8l7adky4i-gcc-wrapper-13.3.0/bin/g++ -DLIBC_NAMESPACE=__llvm_libc -D_DEBUG -I/build/libc-src-20.0.0-unstable-2024-12-05/libc -isystem /build/libc-src-20.0.0-unstable-2024-12-05/libc/build/include -g -std=gnu++17 -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_ADD_NULL_CHECKS -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT src/unistd/linux/CMakeFiles/libc.src.unistd.linux.read.dir/read.cpp.o -MF src/unistd/linux/CMakeFiles/libc.src.unistd.linux.read.dir/read.cpp.o.d -o src/unistd/linux/CMakeFiles/libc.src.unistd.linux.read.dir/read.cpp.o -c /build/libc-src-20.0.0-unstable-2024-12-05/libc/src/unistd/linux/read.cpp
次のファイルから読み込み: /build/libc-src-20.0.0-unstable-2024-12-05/libc/src/__support/OSUtil/linux/syscall.h:13,
次から読み込み: /build/libc-src-20.0.0-unstable-2024-12-05/libc/src/__support/OSUtil/syscall.h:15,
次から読み込み: /build/libc-src-20.0.0-unstable-2024-12-05/libc/src/unistd/linux/read.cpp:11:
/build/libc-src-20.0.0-unstable-2024-12-05/libc/src/unistd/linux/read.cpp:20:29: エラー: ‘ssize_t __llvm_libc::read(int, void*, size_t)’ が外部シンボル ‘read’ の別名となっています
20 | LLVM_LIBC_FUNCTION(ssize_t, read, (int fd, void *buf, size_t count)) {
| ^~~~
/build/libc-src-20.0.0-unstable-2024-12-05/libc/src/__support/common.h:46:34: 備考: in definition of macro ‘LLVM_LIBC_FUNCTION_IMPL’
46 | decltype(LIBC_NAMESPACE::name) name [[gnu::alias(#name)]]; \
| ^~~~
/build/libc-src-20.0.0-unstable-2024-12-05/libc/src/unistd/linux/read.cpp:20:1: 備考: in expansion of macro ‘LLVM_LIBC_FUNCTION’
20 | LLVM_LIBC_FUNCTION(ssize_t, read, (int fd, void *buf, size_t count)) {
| ^~~~~~~~~~~~~~~~~~
```