rpm: We no longer provide the full path to a library

Ever since we changed how we do library searching, the full path to the
library has not been available under `.fullpath`. This has been broken
for at least a year...

mesonbuild/dependencies.py

@@ -564,6 +564,9 @@ class ExternalLibrary(Dependency):
     def found(self):
         return self.is_found
 
+    def get_name(self):
+        return self.name
+
     def get_link_args(self):
         return self.link_args
 

mesonbuild/interpreter.py

@@ -308,9 +308,6 @@ class ExternalLibraryHolder(InterpreterObject):
     def found_method(self, args, kwargs):
         return self.found()
 
-    def get_filename(self):
-        return self.held_object.fullpath
-
     def get_name(self):
         return self.held_object.name
 

mesonbuild/modules/rpm.py

@@ -98,11 +98,12 @@ class RPMModule(ExtensionModule):
             for dep in state.environment.coredata.deps:
                 fn.write('BuildRequires: pkgconfig(%s)\n' % dep[0])
             for lib in state.environment.coredata.ext_libs.values():
-                fn.write('BuildRequires: %s # FIXME\n' % lib.fullpath)
-                mlog.warning('replace', mlog.bold(lib.fullpath), 'with real package.',
+                name = lib.get_name()
+                fn.write('BuildRequires: {} # FIXME\n'.format(name))
+                mlog.warning('replace', mlog.bold(name), 'with the real package.',
                              'You can use following command to find package which '
                              'contains this lib:',
-                             mlog.bold('dnf provides %s' % lib.fullpath))
+                             mlog.bold("dnf provides '*/lib{}.so".format(name))
             for prog in state.environment.coredata.ext_progs.values():
                 if not prog.found():
                     fn.write('BuildRequires: %%{_bindir}/%s # FIXME\n' %