Honor $CC/$CC_host and friends in make generator.

pylib/gyp/generator/ninja.py

Index: pylib/gyp/generator/ninja.py
diff --git a/pylib/gyp/generator/ninja.py b/pylib/gyp/generator/ninja.py
index 5cf3de71c52b7674fcac86aa1728746fc6af3c30..abcf7be4d4cc36c8b216d64b8d5fe69e2ab9c2e1 100644
--- a/pylib/gyp/generator/ninja.py
+++ b/pylib/gyp/generator/ninja.py
@@ -1470,14 +1470,17 @@ def GenerateOutputForConfig(target_list, target_dicts, data, params,
                       restat=True)
     # Note that ldflags goes at the end so that it has the option of
     # overriding default settings earlier in the command line.
+    command=('%s gyp-win-tool link-wrapper $arch '

[bradn, 2012/07/31 17:19:23]

style guide requires spaces around =

+             '$ld /nologo /OUT:$out /PDB:$out.pdb @$out.rsp' %
+             sys.executable)
+    if not os.environ.get('LD_target'):
+      command+=(' && %s gyp-win-tool manifest-wrapper $arch '

[bradn, 2012/07/31 17:19:23]

style guide requires spaces around +=

+                '$mt -nologo -manifest $manifests -out:$out.manifest' %
+                sys.executable)
     master_ninja.rule(
         'link',
         description='LINK $out',
-        command=('%s gyp-win-tool link-wrapper $arch '
-                 '$ld /nologo /OUT:$out /PDB:$out.pdb @$out.rsp && '
-                 '%s gyp-win-tool manifest-wrapper $arch '
-                 '$mt -nologo -manifest $manifests -out:$out.manifest' %
-                 (sys.executable, sys.executable)),
+        command=command,
         rspfile='$out.rsp',
         rspfile_content='$in_newline $libs $ldflags')
   else: