编译gd时报gd_png.c:16:53: error: png.h: No such file or directory错误
版本号:gd-2.0.35解压路径:/usr/local/src/gd-2.0.35make时报错:gcc-DHAVE_CONFIG_H-I.-I.-I.-I/usr/local/freetype/include/freetype2-I/usr/local/freetype/include-I/usr/local/freetype/include-I/usr/local/jpeg/include-