This adds copyright/license notification blocks CMake's find-modules.
Many of the modules had no notices at all. Some had notices referring
to the BSD license already. This commit normalizes existing notices and
adds missing notices.
- The find_* commands now provide a HINTS option.
- The option specifies paths to be preferred over the system paths.
- Many Find* modules were using two find calls with NO_DEFAULT_PATH
to approximate the behavior, but that blocked users from overriding
things with CMAKE_PREFIX_PATH.
- This commit uses the HINTS feature to get desired behavior in
only one find command call.
-add standard QUIET and REQUIRED handling
-add GIF_LIBRARIES variable as readme.txt says
-add name giflib to the names for the gif library
-remove some unnecessary search paths for the lib (they are already part of
the standard search paths, see Modules/Platform/UnixPaths.cmake)
-FindFreetype.cmake: use PATH_SUFFIXES include again for the headers with
the CMAKE_PREFIX_PATH variable
Alex
-remove some unnecessary search paths (they are part of the default paths)
-don't use PATH_SUFFIXES for include/ when searching for a header, that's very uncommon style
-add FREETYPE_LIBRARIES as the variable which should be used by the user (as documented in readme.txt)
Alex
