build: respect CFLAGS when building warn_collector.l

We update to the latest (not really needed, by might as well).

Then we fix the lex building so it uses CFLAGS.  This in turn triggers a
clang warning in the file which we fix by adding proper printf attributes.

TEST=`VERBOSE=1 emerge-x86-alex crash-reporter` showed flags used w/lex

Change-Id: I8db4b8b54b2ca748bb400ec6541287fa764f6d43
Reviewed-by: Yunlian Jiang <>
Reviewed-by: Ben Chan <>
Commit-Queue: Mike Frysinger <>
Tested-by: Mike Frysinger <>
3 files changed
tree: c5c577dda33308b4e364e5b068b4b9bc26a772c8
  1. crash_reporter/