Summary of problem:
The libfm.spec file in the source RPM has a global "bootstrap" which, when set to 1, causes just the libfm-extra components to be built.  This is to get round the circular dependency between libfm and menu-config.  When this option is selected, the install code to do with GTK2 (lines 277-292 of the spec file) fails because those objects have not been built.

Version-Release number of selected component (if applicable):
1.2.3-10 onwards

Steps to Reproduce:
1. Edit libfm.spec and set bootstrap to 1 in line 6
2. rpmbuild -bb libfm.spec

Actual results:
Build fails when line 284 of spec file executed. (diff -urNp .%{_datadir}/%{name} $RPM_BUILD_ROOT/%{_datadir}/%{name})

Expected results:
Build succeeds.

Additional info:
Workaround is to change line 277 of libfm.spec from
   %if 0%{?fedora} >= 22
to
   %if ! 0%{?bootstrap}
   %if 0%{?fedora} >= 22
and line 292 from
   %endif
to
   %endif
   %endif