Removed -mpowerpc -mtune=G4 from several SCons files, so it will work on

either PPC or Intel architectures under OSX.  These options should be
inherited properly from the rest of the OSX SCons build system.

extern/bFTGL/SConscript

@@ -16,7 +16,7 @@ Import('env')
 #elif sys.platform=='sunos':
 #	ftgl_env.Append (CCFLAGS = ['Xc', '-v', '-fast'])
 #elif sys.platform=='darwin':
-#	ftgl_env.Append (CCFLAGS = ['-O2', '-pipe', '-fPIC', '-funsigned-char', '-ffast-math', '-mpowerpc' , '-mtune=G4'])
+#	ftgl_env.Append (CCFLAGS = ['-O2', '-pipe', '-fPIC', '-funsigned-char', '-ffast-math'])
 #else:
 #	ftgl_env.Append (CCFLAGS = cflags)
 

extern/bullet2/src/SConscript

@@ -19,7 +19,7 @@ elif sys.platform=='linux2' or sys.platform=='linux-i386' or sys.platform=='free
     cflags += ['-O2']
 elif sys.platform=='darwin':
     defs += ' NDEBUG'
-    cflags += ['-O2','-pipe', '-fPIC', '-funsigned-char', '-ffast-math', '-mpowerpc' , '-mtune=G4']
+    cflags += ['-O2','-pipe', '-fPIC', '-funsigned-char', '-ffast-math']
 
 linearmath_src = env.Glob("LinearMath/*.cpp")
 bulletdyn_src = ["BulletDynamics/ConstraintSolver/btContactConstraint.cpp",

extern/qhull/SConscript

@@ -14,7 +14,7 @@ elif env['OURPLATFORM']=='win32-mingw':
 elif sys.platform=='sunos5':
    cflags += ['-O2', '-ansi']
 elif sys.platform=='darwin':
-   cflags += ['-O2', '-pipe', '-fPIC', '-funsigned-char', '-ffast-math', '-mpowerpc' , '-mtune=G4']
+   cflags += ['-O2', '-pipe', '-fPIC', '-funsigned-char', '-ffast-math']
 
 sources = ['src/geom.c',
     'src/geom2.c',

extern/solid/SConscript

@@ -17,7 +17,7 @@ elif sys.platform=='linux2' or sys.platform=='linux-i386' or sys.platform=='free
     cflags += ['-O2']
 elif sys.platform=='darwin' :
     defs += ' NDEBUG'
-    cflags += ['-O2','-pipe', '-fPIC', '-funsigned-char', '-ffast-math', '-mpowerpc' , '-mtune=G4']
+    cflags += ['-O2','-pipe', '-fPIC', '-funsigned-char', '-ffast-math']
 
 else:
     print "################################################"