Merge branch '3.3-maint'

* 3.3-maint:
  Prepare for v3.3.1
  Clean up
  Add -arch options to hash
  Prepare for v3.2.8
  Only pass -Wp,-MT and similar to the preprocessor

diff --cc NEWS.txt
index 04c63a2325cd9b6b42cd1cec4ae24cf34d93eceb,8eaf4b6abb827ad52c2664f015020c9e9cbed043..f6ffc8dbdca4b5df6b21f86dd67e93cfbde23e5c
--- 1/NEWS.txt
--- 2/NEWS.txt
+++ b/NEWS.txt
@@@ -1,14 -1,22 +1,29 @@@
  ccache news
  ===========
  
- 
 +Unreleased 3.4
 +--------------
 +
 +New features and improvements
 +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 +
 +
+ ccache 3.3.1
+ ------------
+ Release date: 2016-09-07
+ 
+ Bug fixes
+ ~~~~~~~~~
+ 
+ - Fixed a problem in the ``multiple `-arch` options'' support introduced in
+   3.3. When using the direct mode (the default), different combinations of
+   `-arch` options were not detected properly.
+ 
+ - Fixed an issue when compiler option `-Wp,-MT,path` is used instead of `-MT
+   path` (and similar for `-MF`, `-MP` and `-MQ`) and `run_second_cpp`
+   (`CCACHE_CPP2`) is enabled.
+ 
+ 
  ccache 3.3
  ----------
  Release date: 2016-08-27