Added a link_depends keyword for build targets.

backends.py

@@ -1013,6 +1013,8 @@ class NinjaBackend(Backend):
         if self.environment.coredata.coverage:
             commands += linker.get_coverage_link_flags()
         dep_targets = [self.get_dependency_filename(t) for t in dependencies]
+        dep_targets += [os.path.join(self.environment.source_dir,
+                                     target.subdir, t) for t in target.link_depends]
         elem = NinjaBuildElement(outname, linker_rule, obj_list)
         elem.add_dep(dep_targets)
         elem.add_item('LINK_FLAGS', commands)

build.py

@@ -113,6 +113,7 @@ class BuildTarget():
         self.external_deps = []
         self.include_dirs = []
         self.link_targets = []
+        self.link_depends = []
         self.filename = 'no_name'
         self.need_install = False
         self.pch = {}
@@ -233,6 +234,12 @@ class BuildTarget():
         for i in self.link_flags:
             if not isinstance(i, str):
                 raise InvalidArguments('Link_flags arguments must be strings.')
+        self.link_depends = kwargs.get('link_depends', [])
+        if not isinstance(self.link_depends, list):
+            self.link_depends = [self.link_depends]
+        for i in self.link_depends:
+            if not isinstance(i, str):
+                raise InvalidArguments('Link_depends arguments must be strings.')
         if 'version' in kwargs:
             self.set_version(kwargs['version'])
         if 'soversion' in kwargs:

test cases/linuxlike/3 linker script/meson.build

@@ -1,7 +1,8 @@
 project('linker script', 'c')
 
-vflag = '-Wl,--version-script,@0@/bob.map'.format(meson.current_source_dir())
+mapfile = 'bob.map'
+vflag = '-Wl,--version-script,@0@/@1@'.format(meson.current_source_dir(), mapfile)
 
-l = shared_library('bob', 'bob.c', link_flags : vflag)
+l = shared_library('bob', 'bob.c', link_flags : vflag, link_depends : mapfile)
 e = executable('prog', 'prog.c', link_with : l)
 test('core', e)