Problem installing UFRaw in Linux

I try to install UFRaw but I get this error message while configuring it.

checking for LCMS... configure: error: Package requirements (lcms) were not met:
No package 'lcms' found

So I installed the LCMS but I still the same error message. So I searched the net, and I found in here:
http://www.linuxquestions.org/questions/showthread.php?t=163358

I entered this command

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

in the terminal (I use Fedora). And it succeed.