diff --git a/SConstruct b/SConstruct
index 4a31262adcb..fe45ae7b499 100644
--- a/SConstruct
+++ b/SConstruct
@@ -165,11 +165,12 @@ elif sys.platform == 'darwin':
     fink_path = '/sw/'
     # TODO : try -mpowerpc -mpowerpc-gopt -mpowerpc-gfxopt optims
     #           doing actual profiling
-    extra_flags = ['-pipe', '-fPIC', '-funsigned-char', '-ffast-math', '-mpowerpc' , '-malign-natural']
-
-#'-force_cpusubtype_ALL', '-mpowerpc-gpopt', 
+    extra_flags = ['-pipe', '-fPIC', '-funsigned-char', '-ffast-math', '-mpowerpc'] 
+    
+    # , '-malign-natural'] malign is causing problems with jpeg lib but worth a 1-2% speedup
+    #'-force_cpusubtype_ALL', '-mpowerpc-gpopt', 
     cxxflags = []
-    defines = ['_THREAD_SAFE']
+    defines = ['_THREAD_SAFE' ]
     if use_quicktime == 'true':
         defines += ['WITH_QUICKTIME']
     warn_flags = ['-Wall']    # , '-W'
@@ -1297,8 +1298,11 @@ def appit(target, source, env):
 			commands.getoutput(cmd)
 			cmd = 'cp %s %s.app/Contents/MacOS/%s'%(target, target, target)
 			commands.getoutput(cmd)
-			cmd = 'strip -u -r %s.app/Contents/MacOS/%s'%(target, target)
-			commands.getoutput(cmd)
+			if  user_options_dict['BUILD_BINARY'] == 'debug':
+				print "building debug"
+			else :
+				cmd = 'strip -u -r %s.app/Contents/MacOS/%s'%(target, target)
+				commands.getoutput(cmd)
 			cmd = '%s.app/Contents/Resources/'%target
 			shutil.copy('bin/.blender/.bfont.ttf', cmd)
 			shutil.copy('bin/.blender/.Blanguages', cmd)
diff --git a/extern/qhull/SConscript b/extern/qhull/SConscript
index 47e1779b1bf..2b9487a9527 100644
--- a/extern/qhull/SConscript
+++ b/extern/qhull/SConscript
@@ -14,7 +14,7 @@ elif sys.platform=='win32':
 elif sys.platform=='sunos':
 	qhull_env.Append (CCFLAGS = ['Xc', '-v', '-fast'])
 elif sys.platform=='darwin':
-	qhull_env.Append (CCFLAGS = ['-O2', '-pipe', '-fPIC', '-funsigned-char', '-ffast-math'])
+	qhull_env.Append (CCFLAGS = ['-O3', '-pipe', '-fPIC', '-funsigned-char', '-ffast-math', '-mpowerpc' ])
 else:
 	qhull_env.Append (CCFLAGS = cflags)
 qhull_env.Append (CPPDEFINES = defines)
diff --git a/extern/solid/SConscript b/extern/solid/SConscript
index aec339a2819..ff2388471fb 100644
--- a/extern/solid/SConscript
+++ b/extern/solid/SConscript
@@ -21,7 +21,7 @@ elif sys.platform=='linux2' or sys.platform=='linux-i386':
 	cflags += ['-O2']
 elif sys.platform=='darwin' :
 	defines += ['NDEBUG']
-	cflags += ['-O2',  '-pipe', '-fPIC', '-funsigned-char', '-ffast-math']
+	cflags += ['-O3','-pipe', '-fPIC', '-funsigned-char', '-ffast-math', '-mpowerpc' ]
 
 else:
     print "################################################"