Switch to side-by-side view

--- a/src/configure.ac
+++ b/src/configure.ac
@@ -135,6 +135,7 @@
 AC_SUBST(LIBICONV)
 AC_SUBST(INCICONV)
 AC_SUBST(QTRECOLL_DATADIR)
+AC_SUBST(QMAKE)
 
 AC_CONFIG_FILES(mk/localdefs)
 AC_CONFIG_FILES(recollinstall)