dependencies/misc: don't special case threads

Instad of having special casing of threads in the backends and
everywehre else, do what we did for openmp, create a real
dependency. Then make use of the fact that dependencies can now have
sub dependencies to add threads.

1 files changed, 3 insertions, 3 deletions

diff --git a/mesonbuild/dependencies/boost.py b/mesonbuild/dependencies/boost.py
index 6a8050d..62a652a 100644
--- a/mesonbuild/dependencies/boost.py
+++ b/mesonbuild/dependencies/boost.py
@@ -22,6 +22,7 @@ from .. import mesonlib
 from ..environment import detect_cpu_family
 
 from .base import (DependencyException, ExternalDependency)
+from .misc import ThreadDependency
 
 # On windows 3 directory layouts are supported:
 # * The default layout (versioned) installed:
@@ -103,6 +104,8 @@ class BoostDependency(ExternalDependency):
         self.is_multithreading = threading == "multi"
 
         self.requested_modules = self.get_requested(kwargs)
+        if 'thread' in self.requested_modules:
+            self.ext_deps.append(ThreadDependency(environment, kwargs))
 
         self.boost_root = None
         self.boost_roots = []
@@ -488,9 +491,6 @@ class BoostDependency(ExternalDependency):
     def get_sources(self):
         return []
 
-    def need_threads(self):
-        return 'thread' in self.requested_modules
-
 
 # Generated with boost_names.py
 BOOST_LIBS = [