Ok, glib2-devel is installed. A new configure gives me the same error.
pkg-config says:
> pkg-config gtk+-2.0 --libs
Package pangoxft was not found in the pkg-config search path.
Perhaps you should add the directory containing `pangoxft.pc'
to the PKG_CONFIG_PATH environment variable
Package 'pangoxft', required by 'GDK', not found
So I installed the pango-devel package.
Another configure, same error.
pkg-config says:
> pkg-config gtk+-2.0 --libs
Package atk was not found in the pkg-config search path.
Perhaps you should add the directory containing `atk.pc'
to the PKG_CONFIG_PATH environment variable
Package 'atk', required by 'GTK+', not found
So I installed the atk-devel package.
Another configure: et voila: GTK check was positive, anything runs!
Thanks for all your help!