From 5a9add1fb3370b086f2c32e4b996218ae898b529 Mon Sep 17 00:00:00 2001
From: Akemi <der.richter@gmx.de>
Date: Sun, 8 Jul 2018 17:05:13 +0200
Subject: add swift as main dependency so all dependencies can be disabled
 easily

(cherry picked from commit 5c2056ad0a43b1d15baef6d289aff8cacadad053)
---
 waftools/checks/custom.py | 2 ++
 wscript                   | 9 +++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/waftools/checks/custom.py b/waftools/checks/custom.py
index 1cb133f27c..821bf9c46f 100644
--- a/waftools/checks/custom.py
+++ b/waftools/checks/custom.py
@@ -115,6 +115,8 @@ def check_cocoa(ctx, dependency_identifier):
 def check_swift(ctx, dependency_identifier):
     if ctx.env.SWIFT_VERSION:
         major = int(ctx.env.SWIFT_VERSION.split('.')[0])
+        ctx.add_optional_message(dependency_identifier,
+                                 'version found: ' + ctx.env.SWIFT_VERSION)
         if major >= 3:
             return True
     return False
diff --git a/wscript b/wscript
index 73a891f28c..e9e0ab3672 100644
--- a/wscript
+++ b/wscript
@@ -168,6 +168,11 @@ main_dependencies = [
         'req': True,
         'fmsg': 'Unable to find either POSIX or MinGW-w64 environment, ' \
                 'or compiler does not work.',
+    }, {
+        'name': '--swift',
+        'desc': 'macOS Swift build tools',
+        'deps': 'os-darwin',
+        'func': check_swift,
     }, {
         'name': '--uwp',
         'desc': 'Universal Windows Platform',
@@ -912,8 +917,8 @@ standalone_features = [
      }, {
         'name': '--macos-cocoa-cb',
         'desc': 'macOS opengl-cb backend',
-        'deps': 'cocoa',
-        'func': check_swift
+        'deps': 'cocoa  && swift',
+        'func': check_true
     }
 ]
 
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