Custom widget setup problem (linux version)

[Mookie]

I am attempting a library of custom widgets and am having some trouble with plugins.

I have been running QtSDK 1.1.3-3 and could not seem to find the location to put the shared library files. Qt Creator (2.3.0) would just not recognize them. Help | About Plugins... was not showing any attempt to open.

All the answers I could find assumed it was a MSVC vs. MinGW mismatch... except I am using Linux, so I figure it might be a gcc mismatch. I built Qt-4.7.4 and QtCreator from source, which makes my libraries, the plugins, and QtCreator all the same compiler and Qt version. Still no luck.

Note 1: It works fine with standalone QtDesigner.
Note 2: Yes, I built release.

[Mookie]

Eh, I appear to have it working. Evidently the plugins will compile with only an INCLUDEPATH to the library API header files, but actually linking to the base library is required too.