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Matthias Koefferlein
222b98fd70
With these fixes, unit tests pass with MacOS (set DYLD_LIBRARY_PATH!) 1.) MacOS takes popen vs. pclose seriously By using fopen we basically spoil the system and other popen won't work. 2.) For system integrity, MacOS does not propagate DYLD_LIBRARY_PATH to child processes such as sh. This has to be done explictly. 3.) Search the klayout binary in the right path (klayout.app/...) 4.) Reset KLAYOUT_HOME for less intervention by installed macros