setup: Use explicit path to `mdw-conf'.

It works in an environment that's already been set up, but not in a
shiny new world.  Oops.

diff --git a/setup b/setup
index 37dc474..cb59354 100755 (executable)
--- a/setup
+++ b/setup
@@ -186,7 +186,7 @@ cppfiles=""
   Xdefaults"
 echo "Hacking files with C preprocessor..."
 defs="-DHOME=$HOME -DPROFILE=$here"
-defs="$defs -DEMACSWD=$(mdw-conf emacs-width 77)"
+defs="$defs -DEMACSWD=$(bin/mdw-conf emacs-width 77)"
 for c in $cppfiles; do
   target=.$c
   case $c in