CMAKE_ARCHIVE_OUTPUT_DIRECTORY prevents building in multiple directories

[donn]

This line in CMakeLists.txt:

OpenSTA/CMakeLists.txt

Line 480 in 87418f2

set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${STA_HOME}/app)

It makes it so it's cumbersome to build multiple configurations of OpenSTA in the same worktree using different cmake build directories. This is useful for a couple purposes:

• Different cmake configurations (Debug/Release)
• Emulating different architectures (macOS x86-64/aarch64)

The line appears to be a vestige from an older build system, so I wonder if it can be removed. When I tried removing it, all that has had happened is that libOpenSTA.a is in the build directory instead of app.

[jjcherry56]

If you want to submit a PR that writes it to both places so it doesn't break existing references I will approve it.