* [libwebp] update to 1.2.1
* update version
* Convert patch CRLF to LF
* update version
* update patch and portfile,cmake
* update version
* update portifile.cmake
* update portfile.cmake
* update version
* update portfile.cmake
* update version
* revert portfile.cmake
* update version
* add trailing line break
* update version
* [freeimage] improve compatibility with other ports, using typedefs identical to other headers to avoid errors
* [libwebp] fixes for non-win32 systems
* [giflib] revert again #5578
* [freeglut] add missing wrapper for linux