Adds support for the library_dirs key, which appears in the documentation but was never actually im…

pylib/gyp/generator/scons.py

 # Copyright (c) 2012 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import gyp
 import gyp.common
 import gyp.SCons as SCons
 import os.path
 import pprint
 import re
@@ skipping 196 matching lines @@
   This provides the main translation between the (lower-case) gyp settings
   keywords and the (upper-case) SCons construction variables.
   """
   var_mapping = {
       'ASFLAGS' : 'asflags',
       'CCFLAGS' : 'cflags',
       'CFLAGS' : 'cflags_c',
       'CXXFLAGS' : 'cflags_cc',
       'CPPDEFINES' : 'defines',
       'CPPPATH' : 'include_dirs',
+      'LIBPATH' : 'library_dirs',
       # Add the ldflags value to $LINKFLAGS, but not $SHLINKFLAGS.
       # SCons defines $SHLINKFLAGS to incorporate $LINKFLAGS, so
       # listing both here would case 'ldflags' to get appended to
       # both, and then have it show up twice on the command line.
       'LINKFLAGS' : 'ldflags',
   }
   postamble='\n%s],\n' % indent
   for scons_var in sorted(var_mapping.keys()):
       gyp_var = var_mapping[scons_var]
       value = config.get(gyp_var)
       if value:
         if gyp_var in ('defines',):
           value = [EscapeCppDefine(v) for v in value]
-        if gyp_var in ('include_dirs',):
+        if gyp_var in ('library_dirs', 'include_dirs',):
           if src_dir and not src_dir.endswith('/'):
             src_dir += '/'
           result = []
           for v in value:
             v = FixPath(v, src_dir)
             # Force SCons to evaluate the CPPPATH directories at
             # SConscript-read time, so delayed evaluation of $SRC_DIR
             # doesn't point it to the --generator-output= directory.
             result.append('env.Dir(%r)' % v)
           value = result
@@ skipping 797 matching lines @@
       bf, target = gyp.common.ParseQualifiedTarget(t)[:2]
       target_filename = TargetFilename(target, bf, options.suffix)
       tpath = gyp.common.RelativePath(target_filename, output_dir)
       sconscript_files[target] = tpath
 
     output_filename = output_path(output_filename)
     if sconscript_files:
       GenerateSConscriptWrapper(build_file, data[build_file], basename,
                                 output_filename, sconscript_files,
                                 default_configuration)