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diff --git a/scons/__init__.py b/scons/__init__.py
new file mode 100644
index 00000000..8d1c8b69
--- /dev/null
+++ b/scons/__init__.py
@@ -0,0 +1 @@
+
diff --git a/scons/utils.py b/scons/utils.py
new file mode 100644
index 00000000..8625d719
--- /dev/null
+++ b/scons/utils.py
@@ -0,0 +1,284 @@
+from SCons.Script import ARGUMENTS
+import os
+
+def noColors():
+ try:
+ return int(ARGUMENTS['colors']) == 0
+ except KeyError:
+ return False
+
+def xterm_color(string, color):
+ colors = {'none': "0",
+ 'black': "0;30",
+ 'red': "0;31",
+ 'green': "0;32",
+ 'brown': "0;33",
+ 'blue': "0;34",
+ 'purple': "0;35",
+ 'cyan': "0;36",
+ 'light-gray': "0;37",
+ 'dark-gray': "1:30",
+ 'light-red': "1;31",
+ 'light-green': "1;32",
+ 'yellow': "1;33",
+ 'light-blue': "1;34",
+ 'light-purple': "1;35",
+ 'light-cyan': "1;36",
+ 'white': "1;37"}
+ return "\033[%sm%s\033[0m" % (colors[color], string)
+
+def isPlatform(platform):
+ import sys
+ return platform in sys.platform
+
+def isWindows():
+ return isPlatform("win32")
+
+def isLinux():
+ return isPlatform("linux")
+
+def isOSX104():
+ import platform
+ return isPlatform("darwin") and platform.processor() == 'powerpc'
+
+# Assume 10.6 and up
+def isOSX():
+ return isPlatform("darwin") and not isOSX104()
+
+# todo: figure out when we are on an xterm
+def isXterm():
+ # assume linux and osx are ok
+ return not isWindows()
+
+def colorize(string, color):
+ if noColors():
+ return string
+ if isXterm():
+ return xterm_color(string, color)
+ return string
+
+def colorResult(what):
+ if what != 0:
+ return colorize('yes', 'light-green')
+ else:
+ return colorize('no', 'light-red')
+
+def peg_to_cpp(target, source, env):
+ import sys
+ sys.path.append("src/mugen/parser")
+ sys.path.append(".")
+ import peg, re, cpp_generator
+ name = source[0].name
+ parser = peg.make_peg_parser(re.sub('\..*', '', name))
+ fout = open(target[0].path, 'w')
+ fout.write(cpp_generator.generate(parser(source[0].path)))
+ fout.write('\n')
+ fout.close()
+
+# Build a cpp file from a peg definition
+def pegBuilder(environment):
+ from SCons.Builder import Builder
+ from SCons.Action import Action
+ return Builder(action = Action(peg_to_cpp, environment['PEG_MAKE']),
+ suffix = '.cpp',
+ src_suffix = '.peg')
+
+def readExec(program):
+ import os
+ try:
+ return os.popen(program).readline().replace("\n",'')
+ except OSError:
+ return ""
+
+# Try to execute a script that will produce some compiler flags but fail
+# gracefully if the script dies or can't be found
+def safeParseConfig(environment, config):
+ # redirects stderr, not super safe
+ def version1():
+ import sys
+ out = open('fail.log', 'w')
+ old_stderr = sys.stderr
+ try:
+ sys.stderr = out
+ environment.ParseConfig(config)
+ out.close()
+ sys.stderr = old_stderr
+ except Exception, e:
+ out.close()
+ sys.stderr = old_stderr
+ raise e
+ # use the subprocess module to pass the output of stdout directly
+ # to mergeflags and trash stderr
+ # Not done yet!! This requires python 2.4
+ def version2():
+ import subprocess
+ process = subprocess.Popen(config.split(' '), stdout = subprocess.PIPE)
+ # p = subprocess.Popen(["ruby", "-e", code], stdout = subprocess.PIPE, stderr = subprocess.PIPE)
+ out = p.stdout.readline().strip()
+ environment.MergeFlags(out)
+
+ version1()
+
+# Create a function that pulls out some key from the shell environment
+def makeUseEnvironment(key, default):
+ def use():
+ import os
+ try:
+ return int(os.environ[key]) == 1
+ except KeyError:
+ return default
+ return use
+
+def makeUseArgument(key, default):
+ def use():
+ try:
+ return int(ARGUMENTS[key]) == 1
+ except KeyError:
+ return default
+ return use
+
+useGch = makeUseArgument('gch', True)
+usePrx = makeUseEnvironment('prx', False)
+isVerbose = makeUseArgument('verbose', False)
+useIntel = makeUseEnvironment('intel', False)
+useMinpspw = makeUseEnvironment('minpspw', False)
+useAndroid = makeUseEnvironment('android', False)
+useAndroidX86 = makeUseEnvironment('androidx86', False)
+useIos = makeUseEnvironment('ios', False)
+usePs3 = makeUseEnvironment('ps3', False)
+useNDS = makeUseEnvironment('nds', False)
+useDingoo = makeUseEnvironment('dingoo', False)
+useXenon = makeUseEnvironment('xenon', False)
+usePandora = makeUseEnvironment('pandora', False)
+useWii = makeUseEnvironment('wii', False)
+useLLVM = makeUseEnvironment('llvm', False)
+useNacl = makeUseEnvironment('nacl', False)
+useMpg123 = makeUseEnvironment('mpg123', False)
+useMad = makeUseEnvironment('mad', False)
+useGCW = makeUseEnvironment('gcw', False)
+nativeCompile = makeUseEnvironment('native', False)
+enableProfiled = makeUseEnvironment('PROFILE', False)
+showTiming = makeUseEnvironment('timing', False)
+useAllegro4 = makeUseEnvironment('allegro4', False)
+useWii = makeUseEnvironment('wii', False)
+
+def useAllegro():
+ def byEnv():
+ try:
+ return os.environ['ALLEGRO'] == '1'
+ except KeyError:
+ return False
+
+ def byArgument():
+ try:
+ return int(ARGUMENTS['allegro']) == 1
+ except KeyError:
+ return False
+
+ return byEnv() or byArgument()
+
+def useAllegro5():
+ def byEnv():
+ try:
+ return os.environ['ALLEGRO5'] == '1'
+ except KeyError:
+ return False
+
+ def byArgument():
+ try:
+ return int(ARGUMENTS['allegro5']) == 1
+ except KeyError:
+ return False
+
+ # FIXME: hack to specify android here
+ return byEnv() or byArgument() or useAndroid() or useAndroidX86()
+
+def useSDL():
+ return not useAllegro() and not useAllegro5()
+
+# Replace standard tool invocations with nice colored text
+def lessVerbose(env):
+ link_color = 'light-red'
+ ar_color = 'yellow'
+ ranlib_color = 'light-purple'
+ peg_color = 'light-cyan'
+ env['CCCOMSTR'] = "%s %s" % (colorize('Compiling c file', 'light-green'), colorize('$SOURCE', 'light-blue'))
+ env['SHCCCOMSTR'] = "%s %s" % (colorize('Compiling c file', 'light-green'), colorize('$SOURCE', 'light-blue'))
+ env['CXXCOMSTR'] = "%s %s" % (colorize('Compiling c++ file', 'light-green'), colorize('$SOURCE', 'light-blue'))
+ env['SHCXXCOMSTR'] = "%s %s" % (colorize('Compiling c++ file', 'light-green'), colorize('$SOURCE', 'light-blue'))
+ env['LINKCOMSTR'] = "%s %s" % (colorize('Linking', link_color), colorize('$TARGET', 'light-blue'))
+ env['SHLINKCOMSTR'] = "%s %s" % (colorize('Linking', link_color), colorize('$TARGET', 'light-blue'))
+ env['ARCOMSTR'] = "%s %s" % (colorize('Building library', ar_color), colorize('$TARGET', 'light-blue'))
+ env['RANLIBCOMSTR'] = "%s %s" % (colorize('Indexing library', ranlib_color), colorize('$TARGET', 'light-blue'))
+ env['PEG_MAKE'] = "%s %s" % (colorize('Creating peg parser', peg_color), colorize('$TARGET', 'light-blue'))
+ return env
+
+def configure_backend(environment, backends, custom_tests):
+ config = environment.Configure(custom_tests = custom_tests)
+
+ if not config.CheckCompiler():
+ config.Finish()
+ raise Exception("No c++ compiler found. Install gcc or clang")
+
+ class OkBackend(Exception):
+ pass
+
+ class NoBackend(Exception):
+ pass
+
+ try:
+ for backend in backends:
+ if backend == 'SDL' and config.CheckSDL():
+ environment.Append(CPPDEFINES = ['USE_SDL'])
+ environment['PAINTOWN_BACKEND'] = 'sdl'
+ environment.Append(PAINTOWN_PLATFORM = ['sdl'])
+ raise OkBackend()
+ if backend == 'Allegro4' and config.CheckAllegro4():
+ environment.Append(CPPDEFINES = ['USE_ALLEGRO'])
+ environment['PAINTOWN_BACKEND'] = 'allegro4'
+ environment.Append(PAINTOWN_PLATFORM = ['allegro4'])
+ raise OkBackend()
+ if backend == 'Allegro5' and config.CheckAllegro5():
+ environment.Append(CPPDEFINES = ['USE_ALLEGRO5'])
+ environment['PAINTOWN_BACKEND'] = 'allegro5'
+ environment.Append(PAINTOWN_PLATFORM = ['allegro5'])
+ raise OkBackend()
+ config.Finish()
+ raise NoBackend()
+ except OkBackend:
+ pass
+
+ return config.Finish()
+
+def checkCompiler(context):
+ context.Message("Checking for a compiler (%s) ... " % context.env['CXX'])
+ ok = context.TryCompile("""
+ int main(int argc, char ** argv){
+ return 0;
+ }
+ """, ".cpp")
+ context.Result(colorResult(ok))
+ return ok
+
+def detectCPUs():
+ import os
+ """
+ Detects the number of CPUs on a system. Cribbed from pp.
+ """
+
+# Linux, Unix and MacOS:
+ if hasattr(os, "sysconf"):
+ if "SC_NPROCESSORS_ONLN" in os.sysconf_names:
+ # Linux & Unix:
+ ncpus = os.sysconf("SC_NPROCESSORS_ONLN")
+ if isinstance(ncpus, int) and ncpus > 0:
+ return ncpus
+ else: # OSX:
+ return int(os.popen2("sysctl -n hw.ncpu")[1].read())
+ # Windows:
+ if "NUMBER_OF_PROCESSORS" in os.environ:
+ ncpus = int(os.environ["NUMBER_OF_PROCESSORS"]);
+ if ncpus > 0:
+ return ncpus
+ return 1 # Default
+

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