configure has a piece of logic to detect users "abusing" CC to hold compiler
flags (which we do).  It also has logic to "correct" this by moving the flags
from CC to CFLAGS, but the sed only handles a single argument in CC.

Replace the sed with awk to filter out all words that start with a hyphen.

Upstream-Status: Pending
Signed-off-by: Ross Burton <ross.burton@intel.com>

diff --git a/configure b/configure
index 7f31208..1a29cfc 100755
--- a/configure
+++ b/configure
@@ -2191,2 +2191,2 @@ echo "$as_me: WARNING: your environment misuses the CC variable to hold CFLAGS/C
-	cf_flags=`echo "$CC" | sed -e 's/^.*[ 	]\(-[^ 	]\)/\1/'`
-	CC=`echo "$CC " | sed -e 's/[ 	]-[^ 	].*$//' -e 's/[ 	]*$//'`
+	cf_flags=`echo "$CC" | awk  'BEGIN{ORS=" ";RS=" "} /^-.+/ {print $1}'`
+	CC=`echo "$CC " | awk  'BEGIN{ORS=" ";RS=" "} /^[^-].+/ {print $1}'`