modules/rpm: implement handling includedirs

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>

interpreter.py

@@ -619,6 +619,7 @@ class ModuleHolder(InterpreterObject):
         state.project_name = self.interpreter.build.project_name
         state.compilers = self.interpreter.build.compilers
         state.targets = self.interpreter.build.targets
+        state.headers = self.interpreter.build.get_headers()
         value = fn(state, args, kwargs)
         return self.interpreter.module_method_callback(value)
 

modules/rpm.py

@@ -62,6 +62,10 @@ class RPMModule:
                 to_delete.append('%%{buildroot}%%{_libdir}/%s' % target.get_filename())
                 mlog.log('Warning, removing', mlog.bold(target.get_filename()),
                          'from package because packaging static libs not recommended')
+        for header in state.headers:
+            for hdr_src in header.get_sources():
+                files_devel.append('%%{_includedir}/%s' % os.path.join(
+                        header.get_install_subdir(), hdr_src))
         if len(files_devel) > 0:
             devel_subpkg = True
         fn = open('%s.spec' % os.path.join(state.environment.get_build_dir(), proj),