project (doc) IF (WIN32) MESSAGE(STATUS "This is Windows. Will not install man page") ELSE (WIN32) INCLUDE(GNUInstallDirs) find_program(GZIP gzip) add_custom_command( OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/cryfs.1.gz COMMAND ${GZIP} -c ${CMAKE_CURRENT_SOURCE_DIR}/man/cryfs.1 > ${CMAKE_CURRENT_BINARY_DIR}/cryfs.1.gz ) add_custom_target(man ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/cryfs.1.gz) install(FILES ${CMAKE_CURRENT_BINARY_DIR}/cryfs.1.gz DESTINATION ${CMAKE_INSTALL_MANDIR}/man1 CONFIGURATIONS Release ) ENDIF(WIN32)