[Bug gold/18859] Gold linker does not fully respect -no-as-needed

[eugeni.stepanov at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18859

--- Comment #2 from Evgeniy Stepanov <eugeni.stepanov at gmail dot com> ---
There is some context here:
https://llvm.org/bugs/show_bug.cgi?id=15823

In the clang driver, we add a static library that implements wrappers for
libutil functions, i.e. it exports functions with the same names and calls the
real libutil functions with dlsym(RTLD_NEXT). To ensure that the executable
still depends on libutil, we add -no-as-needed -lutil to the end of the link
line - otherwise the linker thinks that all libutil dependencies are already
satisfied by the wrapper library.

The first "-as-needed -lutil" comes from the clang command line.

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