我运行的是 Mac OS 10.9.1 (Mavericks)，我想安装 Google 的webp扩展：
sudo port install webp
我之前也做过自我更新和过时库的自动更新。
但是，当它构建tiff @4.0.3库时，它会永远构建下去（我 12 小时后就退出了）...
任何想法？
日志：
---> Computing dependencies for webp
---> Cleaning webp
---> Scanning binaries for linking errors: 100.0%
---> Found 7 broken file(s), matching files to ports
---> Found 1 broken port(s), determining rebuild order
---> Rebuilding in order
tiff @4.0.3
---> Computing dependencies for tiff
---> Cleaning tiff
---> Scanning binaries for linking errors: 100.0%
---> Found 7 broken file(s), matching files to ports
---> Found 1 broken port(s), determining rebuild order
---> Rebuilding in order
tiff @4.0.3
---> Computing dependencies for tiff
---> Fetching distfiles for tiff
---> Verifying checksums for tiff
---> Extracting tiff
---> Applying patches to tiff
---> Configuring tiff
---> Building tiff