Please help me to resolve my problem while installation of klayout tool. I encountered this type of issues when I try used this command ./build.sh collect2: error: ld returned 1 exit status gmake[1]: * [Makefile159 ../../build-release/ut_runner] Error 1 gmake[1]: Leaving directory '/home/kali/klayout/build-release/unit_tests' gmake: * [Makefile230 sub-unit_tests-make_first] Error 2