[Bug ld/28040] libLLVM.so fails to link using LTO with ld.bfd + LLVMGold plugin

[tbaeder at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=28040

--- Comment #2 from Timm Bäder <tbaeder at redhat dot com> ---
On Fedora 34, in a fresh LLVM checkout on the main branch, I can reproduce this
via:

CC=clang CXX=clang++ cmake ../llvm -GNinja -DLLVM_BUILD_LLVM_DYLIB=ON
-DLLVM_ENABLE_LTO=ON


The build eventually fails with:

/usr/bin/ld: cannot find lib/libLLVMSupport.a: Too many open files
/usr/bin/ld: cannot find lib/libLLVMTarget.a: Too many open files
/usr/bin/ld: cannot find -lpthread
/usr/bin/ld: cannot find lib/libLLVMAArch64Desc.a: Too many open files
/usr/bin/ld: cannot find lib/libLLVMAArch64Info.a: Too many open files
/usr/bin/ld: cannot find lib/libLLVMAArch64Utils.a: Too many open files
etc.


I'm not sure what's different to your cmake invocation though.

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