More work on issue Andersbakken#92. Make it possible to run a script …

…for dynamic set

up of RTAGS_ARGS in gcc-rtags-wrapper.sh

To use just make a script called rtags_args. It gets called with the
same args as gcc would have been and its stdout will be added to the
args passed to rc --compile

bin/gcc-rtags-wrapper.sh

@@ -5,14 +5,15 @@ function followSymlink()
     python -c "import os, sys; print os.path.realpath(\"$1\")"
 }
 
-
-rc=`which rc`
 for i in `which -a "\`basename $0\`"`; do
     resolved=`followSymlink $i`
     if [ `basename $resolved` != "gcc-rtags-wrapper.sh" ]; then
         [ -n "$RTAGS_SERVER_FILE" ] && RTAGS_ARGS="$RTAGS_ARGS -n$RTAGS_SERVER_FILE"
         [ -n "$RTAGS_PROJECT" ] && RTAGS_ARGS="$RTAGS_ARGS --with-project=$RTAGS_PROJECT"
         [ -z "$RTAGS_COMPILE_TIMEOUT" ] && RTAGS_COMPILE_TIMEOUT=3000
+        rc=`which rc`
+        args=`which rtags_args`
+        [ -n "$args" ] && RTAGS_ARGS="$RTAGS_ARGS `$args \"$@\"`"
 
         if [ -z "$RTAGS_DISABLED" ] && [ -x "$rc" ]; then
             $rc --timeout=$RTAGS_COMPILE_TIMEOUT $RTAGS_ARGS --silent --compile "$i" "$@" &