More build fixes
diff --git a/configure.ac b/configure.ac
index 9e798cb..3a6e528 100644
--- a/configure.ac
+++ b/configure.ac
@@ -112,6 +112,8 @@
 			AC_SUBST(ICU_CFLAGS)
 			AC_SUBST(ICU_LIBS)
 		fi
+	else
+		have_icu=false
 	fi
 ])
 if $have_icu; then