Lazarus Pascal 的 postgresql 客户端库 - 缺少 libpq.dll 错误

Question

我正在尝试使用 Lazarus Pascal 和 PostgreSQL 创建我的第一个应用程序。

pg 数据库在我的 Ubuntu Linux 主机上。 Lazarus 在 XP 上，通过 VirtualBox 运行。

当尝试连接到 PG 数据库时，我收到一个错误，提示 libpq.dll 丢失。

我该怎么办？这个平台很新。

Answer 1

来自此处的文档 http://wiki.lazarus.freepascal.org/postgres

Error: "Can not load PostgreSQL client library "libpq.dll"" The program cannot find your PostgreSQL driver files. Copy all required PostgreSQL .dll/.manifest files either to your project directory and your executable output directory, or to a directory in your search path (e.g. c:\windows\system32) A good example that demonstrates how to include drive DLL files when connecting Lazarus with PostgreSQL under Windows is easyDB. On Linux/Unix/OSX: make sure the PostgreSQL libraries are in your library search path, e.g.: On linux add the path to the libpq.so file to the libraries section in your /etc/fpc.cfg file. For example : -Fl/usr/local/pgsql/lib It may be necessary to create a symbolic link from a specific library version to a general library name: ln -s /usr/lib/pqsql.so.5 /usr/lib/pqsql.so . Alternatively, install the postgresql client -dev package using your distribution's package manager