Use the lowest MacOS SDK available on a system

tools/generate_projects.py

Index: tools/generate_projects.py
diff --git a/tools/generate_projects.py b/tools/generate_projects.py
index 8f9d796ae19335341caa8446665e72b229f97deb..84ec58589b922c252d6fc03fac15a5bdb9540004 100755
--- a/tools/generate_projects.py
+++ b/tools/generate_projects.py
@@ -49,6 +49,8 @@ except ImportError, e:
 
 
 if __name__ == '__main__':
+  dart_root = os.path.dirname(os.path.abspath(os.path.dirname(__file__)))
+
   # Make our own location absolute as it is stored in Makefiles.
   sys.argv[0] = os.path.abspath(sys.argv[0])
 
@@ -56,6 +58,7 @@ if __name__ == '__main__':
   args = sys.argv[2:]
 
   args += ['--depth', project_src]
+  args += ['-D', 'DART_ROOT=' + dart_root]

[Ivan Posva, 2013/03/13 09:44:40]

I would prefer if we did not have to pass this value.

[kustermann, 2013/03/13 15:30:29]

As discussed offline, we don't need this anymore after we removed the two
unnecessary runhooks.

   args += ['-I', './tools/gyp/common.gypi']
 
   if platform.system() == 'Linux':