Merge branch 't/old_gcc_fixes'

	82d304 buffer_tree.h: Fix gcc warning.
	5535f6 alsa: Fix gcc warning.

Simple enough and well tested with no regressions found.

diff --cc NEWS
index 9a84c332001ddc5d0cdf4fbf769550b4c9387790,fa8e0249be9945f08cd4bf9c36531854cf8000f5..7fcf7f974a402907019cd0f0805a666cee3b603c
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -6,11 -6,7 +6,12 @@@
          support this feature, data is sent as a multiplexed stream.
        - The --no_default_filters option of para_filter has been
          removed.
 +      - Several fixes and latency improvements to various decoders.
 +      - The alsa writer now limits the prebuffer time to 500ms.
        - Documentation improvements.
 +      - Overhaul of the command_util.sh script.
 +      - Fixes for some minor problems found by the clang analyzer.
++      - Compiles (almost) without warnings on gcc-3.
  
  ------------------------------------------
  0.4.10 (2012-03-30) "heterogeneous vacuum"

diff --cc alsa_write.c
Simple merge