安装GD
tar zxvf gd-2.0.33.tar.gz
cd gd-2.0.33
./configure -prefix=/usr/local/gd -with-jpeg=/usr/local/jpeg6 -with-png -with-zlib -with-freetype
make
make install
checking for gdImageString16 in -lgd... no
checking for gdImagePaletteCopy in -lgd... no
checking for gdImageCreateFromPng in -lgd... no
checking for gdImageCreateFromGif in -lgd... no
checking for gdImageGif in -lgd... no
checking for gdImageWBMP in -lgd... no
checking for gdImageCreateFromJpeg in -lgd... no
checking for gdImageCreateFromXpm in -lgd... no
checking for gdImageCreateFromGd2 in -lgd... no
checking for gdImageCreateTrueColor in -lgd... no
checking for gdImageSetTile in -lgd... no
checking for gdImageEllipse in -lgd... no
checking for gdImageSetBrush in -lgd... no
checking for gdImageStringTTF in -lgd... no
checking for gdImageStringFT in -lgd... no
checking for gdImageStringFTEx in -lgd... no
checking for gdImageColorClosestHWB in -lgd... no
checking for gdImageColorResolve in -lgd... no
checking for gdImageGifCtx in -lgd... no
checking for gdCacheCreate in -lgd... no
checking for gdFontCacheShutdown in -lgd... no
checking for gdFreeFontCache in -lgd... no
checking for gdFontCacheMutexSetup in -lgd... no
checking for gdNewDynamicCtxEx in -lgd... no
checking for gdImageCreate in -lgd... no
configure: error: GD build test failed. Please check the config.log for details.