diff --git a/app-crypt/qca/files/app.pri.in b/app-crypt/qca/files/app.pri.in
new file mode 100644
--- /dev/null
+++ b/app-crypt/qca/files/app.pri.in
@@ -0,0 +1,12 @@
+### eqmake4 was here ###
+include(confapp.pri)
+
+mac:QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.3
+
+exists(crypto.prf) {
+	# our apps should build against the qca in this tree
+	include(crypto.prf)
+} else {
+	# attempt to use system-wide qca
+	CONFIG *= crypto
+}