1 files changed, 25 insertions, 0 deletions
diff --git a/BuildTools/SCons/Tools/ReplacePragmaOnce.py b/BuildTools/SCons/Tools/ReplacePragmaOnce.py
new file mode 100644
index 0000000..466c31e
--- /dev/null
+++ b/BuildTools/SCons/Tools/ReplacePragmaOnce.py
@@ -0,0 +1,25 @@
+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