Merge pull request #4091 from martin-frbg/ccheckfix

Fix spurious compiler error and more extraneous quotes in c_check

c_check

@@ -31,11 +31,11 @@ flags="$*"
 
 cross_suffix=""
 
-if [ "`dirname \"$compiler_name\"`" != '.' ]; then
-    cross_suffix="$cross_suffix`dirname \"$compiler_name\"`/"
+if [ "`dirname "$compiler_name"`" != '.' ]; then
+    cross_suffix="$cross_suffix`dirname "$compiler_name"`/"
 fi
 
-cn= `echo $compiler_name | sed -e 's/ -.*//'`
+cn=`echo $compiler_name | sed -e 's/ -.*//'`
 bn=`basename "$cn"`
 
 case "$bn" in