scons: Create a ocarina-debug launcher

My Sconstruct now supports installing a debug build to
/usr/lib/ocarina-debug and launching through ocarina-debug.  This should
allow me to test pipe related scripts

Sconstruct

@@ -8,6 +8,7 @@ EXTRA = ""
 DEBUG = True
 
 PREFIX  = "/usr"
+POSTFIX = ""
 DESTDIR = ""
 for argv in sys.argv:
 	split = argv.split("=")
@@ -17,6 +18,7 @@ for argv in sys.argv:
 FLAGS = ["-O2"]
 if DEBUG == True:
 	FLAGS = ["-Wall", "-Werror", "-g", "-DDEBUG"]
+	POSTFIX = "-debug"
 
 env = Environment(CCFLAGS = FLAGS)
 if ARGUMENTS.get('VERBOSE') != "1":
@@ -51,16 +53,17 @@ ocarina=env.Program('ocarina.bin', list_dirs('libsaria') + list_dirs('ocarina'))
 Default(ocarina)
 
 # Install Ocarina
-lib = DESTDIR + PREFIX + "/lib/ocarina"
-bin = DESTDIR + PREFIX + "/bin/ocarina"
+lib = DESTDIR + PREFIX + "/lib/ocarina" + POSTFIX
+bin = DESTDIR + PREFIX + "/bin/ocarina" + POSTFIX
 images = lib + "/images"
 env.Install(lib, ocarina)
 env.Alias("install", [lib, images, bin])
 env.Command(images, "./images/", [Copy(images, "./images")])
 def ocarina_sh(target, source, env):
 	f = open("ocarina.sh", "w")
-	f.write("#!/bin/bash\n")
-	f.write(PREFIX + "/lib/ocarina/ocarina.bin \"$*\"\n")
+	for line in open("scripts/ocarina.sh"):
+		line = line.replace("%%BIN%%", lib + "/ocarina.bin")
+		f.write(line)
 	f.close()
 env.Command(bin, None, [ocarina_sh, Move(bin, "ocarina.sh"), Chmod(bin, 0755)])
 

scripts/ocarina.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+%%BIN%% "$*"