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[100%] Built target mlpack_test
Install the project...
-- Install configuration: ""
-- Up-to-date: /usr/local/lib/pkgconfig/mlpack.pc
CMake Error at cmake_install.cmake:41 (file):
  file INSTALL cannot set permissions on "/usr/local/lib/pkgconfig/mlpack.pc"


make: *** [Makefile:74: install] Error 1