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import SCons.Util, os.path
def generate(env) :
root = env.Dir("#").abspath
def relpath(path, start) :
i = len(os.path.commonprefix([path, start]))
return path[i+1:]
def replacePragmaOnce(env, target, source) :
guard = relpath(source[0].abspath, root).replace("/", "_").replace(".", "_").upper()
data = source[0].get_contents()
f = open(str(target[0]), 'wb')
if "#pragma once" in data :
f.write(data.replace("#pragma once", "#ifndef %(guard)s\n#define %(guard)s" % {"guard": guard}))
f.write("\n#endif\n")
else :
f.write(data)
f.close()
env["BUILDERS"]["ReplacePragmaOnce"] = SCons.Builder.Builder(
action = SCons.Action.Action(replacePragmaOnce, cmdstr = "$GENCOMSTR"),
single_source = True)
def exists(env) :
return True
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