configure的时候出现下列信息:
checking for gnome-python-2.0 >= 1.99.17 pygtk-2.0 >= 1.99.17 gdk-2.0 gtk+-2.0 libgtop-2.0 >= 2.0.0... Package libgtop-2.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libgtop-2.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libgtop-2.0' found
configure: error: Library requirements (gnome-python-2.0 >= 1.99.17 pygtk-2.0 >= 1.99.17 gdk-2.0 gtk+-2.0 libgtop-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.
其中libgtop-2.0我已经安装,是用tar.gz源码文件编译安装的,问题似乎是环境变量里面没有libgtop-2.0。我该怎么把它加进PKG_CONFIG_PATH里