diff options
Diffstat (limited to 'mesonbuild/interpreter.py')
| -rw-r--r-- | mesonbuild/interpreter.py | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/mesonbuild/interpreter.py b/mesonbuild/interpreter.py index 28f56c8..da96eb3 100644 --- a/mesonbuild/interpreter.py +++ b/mesonbuild/interpreter.py @@ -1834,11 +1834,23 @@ class Interpreter(): # We need to actually search for this dep exception = None dep = None - try: - dep = dependencies.find_external_dependency(name, self.environment, kwargs) - except dependencies.DependencyException as e: - exception = e - pass + # If the fallback has already been configured (possibly by a higher level project) + # try to use it before using the native version + if 'fallback' in kwargs: + dirname, varname = self.get_subproject_infos(kwargs) + if dirname in self.subprojects: + try: + dep = self.subprojects[dirname].get_variable_method([varname], {}) + dep = dep.held_object + except KeyError: + pass + + if not dep: + try: + dep = dependencies.find_external_dependency(name, self.environment, kwargs) + except dependencies.DependencyException as e: + exception = e + pass if not dep or not dep.found(): if 'fallback' in kwargs: @@ -1852,12 +1864,15 @@ class Interpreter(): self.coredata.deps[identifier] = dep return DependencyHolder(dep) - def dependency_fallback(self, name, kwargs): + def get_subproject_infos(self, kwargs): fbinfo = kwargs['fallback'] check_stringlist(fbinfo) if len(fbinfo) != 2: raise InterpreterException('Fallback info must have exactly two items.') - dirname, varname = fbinfo + return fbinfo + + def dependency_fallback(self, name, kwargs): + dirname, varname = self.get_subproject_infos(kwargs) try: self.do_subproject(dirname, {}) except: |