gtk package

[Paul Akkermans]

Hi Everyone,   I am trying to install a structure editor in my debian system. When I am trying to configure this tool I get the following message:   ......... checking for pkg-config... /usr/bin/pkg-config checking for gtk+-2.0 >= 2.0.0... Package gtk+-2.0 was not found in the pkg-config search path. Perhaps you should add the directory containing `gtk+-2.0.pc' to the PKG_CONFIG_PATH environment variable No package 'gtk+-2.0' found   configure: error: Library requirements (gtk+-2.0 >= 2.0.0) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them. I do not know how to do this. What does "Perhaps you should add the directory containing `gtk+-2.0.pc' to the PKG_CONFIG_PATH environment variable" mean? And how do I do this?   I am hoping somebody does know how to solve this problem   Thanks in advance,   paul Akkermans