In an attempt to install gnucash, I've gotten the error:

Package gconf-2.0 was not found in the pkg-config search path. Perhaps you should add the directory containing `gconf-2.0.pc' to the PKG_CONFIG_PATH environment variable No package 'gconf-2.0' found
configure: error: Library requirements (gconf-2.0 >= "2.0") not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.
However, looking in YAST, I see that it is installed. So, how do I find where that file is and then how do I add it to the pkg-config search path? (When I echo $PKG_CONFIG_PATH it's blank)