Make amGirder invisible in construction mode since it allows placing anywhere in fortress. Print "insufficient power" if placement was blocked due to that, to avoid confusing noobs.
#libraries have already been searched in main CMakeLists.txt
# TODO: this check is only for SDL < 2
# fpc will take care of linking but we need to have this library installed
find_package(GLUT REQUIRED)
include_directories(${LIBAV_INCLUDE_DIR})
add_library(avwrapper avwrapper.c)
#TODO: find good VERSION and SOVERSION values
target_link_libraries(avwrapper ${LIBAV_LIBRARIES})
install(TARGETS avwrapper RUNTIME DESTINATION ${target_binary_install_dir}
LIBRARY DESTINATION ${target_library_install_dir}
ARCHIVE DESTINATION ${target_library_install_dir})