Add base SConstruct

SConstruct

@@ -0,0 +1,74 @@
+# SConstruct
+# vim: set ft=python:
+#
+# Toplevel Scons build script for the Charles project.
+#
+# Eryn Wells <eryn@erynwells.me>
+
+
+#
+# DEFAULT CONFIGURATION VALUES
+#
+
+# Enabling debugging does the following things:
+#   1. Turns on debugging symbols
+#   2. Turns off all optimization
+#   3. Sets the DEBUG define
+DEBUG = True
+
+# Show build commands ("cc [args] -o [out] [file], etc"). If this is False, show
+# some nice messages for each step of the build.
+BUILD_CMDS = False
+
+# Source directories. New directories should contain a SConscript file and be
+# added here.
+source_directories = Split("""
+    #src
+""")
+
+#
+# BUILD STUFF BELOW HERE
+#
+
+import os.path
+
+cflags='-Wall -Wextra -pedantic'
+common_env = Environment(
+    CC='clang',
+    CXX='clang++',
+    CFLAGS=cflags + ' -std=c99',
+    CXXFLAGS=cflags + ' -std=c++11')
+
+def get_bool_argument(arg):
+    if bool(int(arg)):
+        return True
+    if arg == ('True', 'TRUE', 'true'):
+        return True
+    return False
+
+BUILD_CMDS = get_bool_argument(ARGUMENTS.get('BUILD_CMDS', BUILD_CMDS))
+if not BUILD_CMDS:
+    def generate_comstr(action):
+        return '%18s: $TARGET' % (action,)
+    common_env['ASCOMSTR'] = generate_comstr('Assembling'),
+    common_env['CCCOMSTR'] = generate_comstr('Building (C)'),
+    common_env['CXXCOMSTR'] = generate_comstr('Building (C++)'),
+    common_env['LINKCOMSTR'] = generate_comstr('Linking'),
+    common_env['ARCOMSTR'] = generate_comstr('Archiving'),
+    common_env['RANLIBCOMSTR'] = generate_comstr('Indexing')
+
+debug_env = common_env.Clone()
+debug_env.VariantDir(os.path.join('build', 'debug'), 'src', duplicate=0)
+debug_env.Append(CPPDEFINES=['DEBUG'])
+debug_cflags = ' -O0 -g'
+debug_env.Append(CFLAGS=debug_cflags, CXXFLAGS=debug_cflags)
+
+release_env = common_env.Clone()
+release_env.VariantDir(os.path.join('build', 'release'), 'src', duplicate=0)
+release_cflags = ' -O2'
+release_env.Append(CPPDEFINES=['RELEASE'])
+
+for d in source_directories:
+    sc = os.path.join(d, 'SConscript')
+    debug_env.SConscript(sc, {'env': debug_env})
+    release_env.SConscript(sc, {'env': release_env})