rust: properly rematerialize static dependencies as well as dynamic ones

Rustc expects to be provided both a search path `-L`, and a link arg `-l
kind=libname`, but we don't handle that correctly. Because we combine -L
and -l arguments from pkg-config the backend must rematerialize the -L
and -l split. We currently don't do this for static archives.

mesonbuild/backend/ninjabackend.py

@@ -2093,13 +2093,14 @@ class NinjaBackend(backends.Backend):
                 if a in rustc.native_static_libs:
                     # Exclude link args that rustc already add by default
                     continue
-                if a.endswith(('.dll', '.so', '.dylib')):
+                if a.endswith(('.dll', '.so', '.dylib', '.a', '.lib')):
                     dir_, lib = os.path.split(a)
                     linkdirs.add(dir_)
                     lib, ext = os.path.splitext(lib)
                     if lib.startswith('lib'):
                         lib = lib[3:]
-                    args.extend(['-l', f'dylib={lib}'])
+                    _type = 'static' if a.endswith(('.a', '.lib')) else 'dylib'
+                    args.extend(['-l', f'{_type}={lib}'])
                 elif a.startswith('-L'):
                     args.append(a)
                 elif a.startswith('-l'):