--- hydrogen-0.9.4.old/Sconstruct	2009-09-07 23:31:13.000000000 +0200
+++ hydrogen-0.9.4/Sconstruct	2009-09-21 18:49:47.834464631 +0200
@@ -54,7 +54,7 @@
 				cppflags.append(flag)
 			
 		else:
-			cppflags += ['-O3', '-fomit-frame-pointer', '-funroll-loops']
+			cppflags += ['-O2', '-march=i686', '-mtune=i686', '-fomit-frame-pointer', '-funroll-loops']
 			#cppflags += " %s" % get_optimized_flags( target_cpu )
 			for flag in env["optflags"].split(" "):
 				cppflags.append(flag)
@@ -323,7 +323,7 @@
 #platform independent settings
 opts.Add('debug', 'Set to 1 to build with debug informations', 0)
 opts.Add('libarchive', 'Set to 1 to enable libarchive instead of libtar', 0)
-opts.Add('prefix','Default: /usr/local',"/usr/local")
+opts.Add('prefix','Default: /usr',"/usr")
 opts.Add('DESTDIR','Default: none',"")
 opts.Add('optflags','Default: none',"")