c0d3walk3r wrote: > Any suggestions/advice would be extremely welcome, this is one of my first > times trying to use an external library and it's been something I've tried > using for a while without success. Keep in mind I am new to using gcc, so > even if the answer is really simple, I'd appreciate a little more than just > an issue of commands (unless it's extremely simple). -L adds a directory to the list of search paths but it doesn't otherwise do anything else. You need to specify the libraries to link with -l. Notice that that archive contains both static and shared versions of the library. If you want to link with the shared version of the library (i.e. the import lib), use -lcurldll. Note that order of arguments on the command line matters, so put -l options after objects that reference symbols in those libraries. This works for me (run from the root of the package): $ gcc simple.c -o bin/simple -Iinclude -Llib -lcurldll This will create a simple.exe that depends on libcurl.dll and the other DLLs. They must either be in the same directory as the executable or somewhere in the PATH at runtime (that's why I create the output in the bin directory.) In theory if you wanted to statically link you'd use -lcurl instead. However it's a little more complicated than that. Firstly libcurl uses explicit dllexport/dllimport decorations in its headers. This means if you want to statically link you have to use the corresponding documented define to tell the curl headers to disable dllimport of the symbols, i.e. -DCURL_STATICLIB. Also when statically linking you have to spell out every library dependency, as opposed to above where you just have to specify -lcurldll. If you want to statically link you have to know that this version of libcurl depends on libssh2 and openssl and zlib as well as various Win32 APIs. (Also this distribution lacks a static version of the openssl libraries so it's not even possible to fully statically link. And the import libs for the openssl DLLs are missing to so you can't use -l for them, but you can link directly to a DLL without an import lib with the GNU linker.) Anyway, for reference the following works for me to statically link: $ gcc simple.c -o bin/simple_static -Iinclude -Llib -DCURL_STATICLIB -lcurl -lssh2 bin/libeay32.dll bin/libssl32.dll -lwldap32 -lws2_32 -lz Brian
