fix hint and gl2 build. NOTE: this does not change that GL2 segfaults right away. that is an issue that dates back at least 50 commits, but most likely even back to the webgl merge. I guess nobody actually tried to run hedgewars in GL2 since back then :P
#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})