manojgupta added a comment.
Michał, will appreciate if you can test this on your (multiple?) Gentoo
configurations.
Will work on updating the testcases after that.
To test it locally, I used the following :
$ cat test.cpp
#include <iostream>
#include <string>
int main() {
std::cout << " Hello, World!" << std::endl;
return 0;
}
Setup cross compilers for x86_64 and aarch64.
=============================================
$ sudo crossdev -S x86_64-gentoo-linux-gnu
$ sudo crossdev -S aarch64-gentoo-linux-gnu
$ Build and install clang in a location other than /usr/bin e.g.
$HOME/clang-testing/bin
Verify that correct gcc libs are picked.
$ /path/to/clang++ --sysroot=/usr/aarch64-gentoo-linux-gnu
-B/usr/libexec/gcc/aarch64-gentoo-linux-gnu -target aarch64-gentoo-linux-gnu
test.cpp -o main -Wl,-t -v
Further verify that any lib/headers from x86_64-pc-linux-gnu are NOT picked
after the patch is applied.
$ /path/to/clang++ --sysroot=/usr/x86_64-gentoo-linux-gnu
-B/usr/libexec/gcc/x86_64-gentoo-linux-gnu -target x86_64-gentoo-linux-gnu
test.cpp -o main -Wl,-t -v
Repository:
rC Clang
https://reviews.llvm.org/D45233
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