From ca968dbb4ee3e44f16423b29bdef77ca80fc805a Mon Sep 17 00:00:00 2001
From: Konstantin Ritt <ritt.ks@gmail.com>
Date: Tue, 20 Nov 2018 16:57:27 +0300
Subject: [PATCH] Make the QtGui module an optional dependency

detect and link with it, if found
---
 qmsgpack.pri | 4 ++++
 src/src.pro  | 6 +++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/qmsgpack.pri b/qmsgpack.pri
index c0caae2..8ad2460 100644
--- a/qmsgpack.pri
+++ b/qmsgpack.pri
@@ -26,6 +26,10 @@ HEADERS += \
     $$PWD/src/stream/time.h \
     $$PWD/src/stream/geometry.h
 
+qtHaveModule(gui) {
+    QT += gui
+}
+
 qtHaveModule(location) {
     QT += location
 
diff --git a/src/src.pro b/src/src.pro
index d71d5bf..d330ca5 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -1,4 +1,4 @@
-QT       += core gui
+QT       += core
 
 TARGET = qmsgpack
 CONFIG   -= app_bundle
@@ -46,6 +46,10 @@ STREAM_HEADERS_INSTALL = \
     stream/geometry.h \
     stream/time.h
 
+qtHaveModule(gui) {
+    QT += gui
+}
+
 qtHaveModule(location) {
     QT += location