--- configure.in.old	2005-01-25 17:53:30.000000000 +0100
+++ configure.in	2005-01-25 18:12:25.585567016 +0100
@@ -192,13 +192,27 @@
 
 dnl ----------------------------------------------
 
+AC_ARG_ENABLE([evolution],
+    [  --enable-evolution   Enable Evolution Support ],
+	enable_evo_sharp=$enableval,
+	enable_evo_sharp=no)
+
+
 EVOLUTION_SHARP_REQUIRED_VERSION=0.6
 PKG_CHECK_MODULES(EVO_SHARP,						\
                   evolution-sharp >= $EVOLUTION_SHARP_REQUIRED_VERSION, \
-                  enable_evo_sharp=yes,					\
-		  enable_evo_sharp=no)
+                  have_evo_sharp=yes,					\
+		  have_evo_sharp=no)
 AC_SUBST(EVO_SHARP_LIBS)
 
+if test "x$have_evo_sharp" = "xno"; then
+	enable_evo_sharp="no (missing dependencies)"
+else
+	if test "x$enable_evo_sharp" != "xyes"; then
+		enable_evo_sharp="disabled"
+	fi
+fi
+
 AM_CONDITIONAL(ENABLE_EVO_SHARP, test "x$enable_evo_sharp" = "xyes")
 
 EVO_SHARP_PREFIX=`$PKG_CONFIG --variable=prefix evolution-sharp`