Clang build environment.

jichu4n · May 6, 2014 · b67ea2d · b67ea2d
1 parent 2438ea6
commit b67ea2d
Showing 1 changed file with 35 additions and 9 deletions.
diff --git a/SConstruct b/SConstruct
@@ -16,34 +16,60 @@
 #                                                                             #
 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
 
+import logging
 import os
 
 
-# Main build environment.
-env = Environment()
+# Supported build systems.
+ENVIRONMENTS = ('gcc', 'clang',)
+AddOption(
+    '--build_with',
+    choices=ENVIRONMENTS,
+    default='gcc',
+    help='Build environment.')
+assert GetOption('build_with') in ENVIRONMENTS
 
 
-# Set up build environment.
+# Common build environment.
+env = Environment()
 env.Append(
     CXXFLAGS=[
-        '-std=c++0x',
+        '-std=c++1y',
         '-Wall',
         '-g',
-        ],
+    ],
     ENV={
         # For running commands.
         'PATH': os.environ.get('PATH', ''),
         # Enables color output from Clang++.
         'TERM': os.environ.get('TERM', ''),
-        })
+    })
 LIBS = [
     'libglog',
     'x11',
-    ]
+]
 for lib in LIBS:
-  env.ParseConfig(
-      'pkg-config --cflags --libs %s' % (lib))
+  env.ParseConfig('pkg-config --cflags --libs %s' % (lib))
 
+# Additional build flags for Clang.
+if GetOption('build_with') == 'gcc':
+  pass
+elif GetOption('build_with') == 'clang':
+  env.Replace(
+      CXX='clang++')
+  env.Append(
+      CXXFLAGS=[
+          '-stdlib=libc++',
+      ],
+      LINKFLAGS=[
+          '-stdlib=libc++',
+      ],
+      LIBS=[
+          '-lc++abi',
+      ],
+  )
+else:
+  logging.fatal('Unsupported build environment \'%s\'', GetOption('build_with'))
 
 # Main program.
 env.Program(