win32 configure helper : allow to use in source dir contribs

diff --git a/extras/package/win32/configure-common.sh b/extras/package/win32/configure-common.sh
index 8b3348770d016fd27df6ccfea8b1c16aba4bddab..6abd5c97ee957a7c515534b3840d2b49e726e8f6 100755 (executable)
--- a/extras/package/win32/configure-common.sh
+++ b/extras/package/win32/configure-common.sh
@@ -1,4 +1,5 @@
 [ -z $CONTRIB_DIR ] && export CONTRIB_DIR=/usr/win32
+[ "$CONTRIB_DIR" = no ] && export CONTRIB_DIR=""
 
   $CONFIGURE \
       --with-contrib="$CONTRIB_DIR" \