I'm trying to use my digital camera, and therefore need a multiplude of applications. I've installed libphoto2, gphoto2, and now I'm trying to install gtkam 0.1.12. I get this when typing './configure':

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checking for pkg-config... /usr/bin/pkg-config
checking for gtk+-2.0 libgphoto2 >= 2.1.4... 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 libgphoto2 >= 2.1.4) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.
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Do I need gtk? Is my libgphoto2 not recognized? What version do I have installed? Am I going mad? Please help...muchly appreciated.

I went through this, but it was a while back so I can't remember exactly what I did.

IIRC I searched for gtk+-2.0.pc etc and then did

export PKG_CONFIG_PATH=/paths/to/dirs/holding/files/

and then did ./configure etc again

I think it was quite a long path because I had to include lines to libgphoto and gphoto2 also with the path to each file separated by a : as in the $PATH variable

HTH,
mark