feat(App): supports only Qt5.9 now

README.md

@@ -8,7 +8,7 @@ Linphone is a free VoIP and video softphone based on the SIP protocol.
 
 Here are the general instructions to build linphone for desktop. The specific instructions for each build platform is described just below.
 
-1. Install some build tools: `CMake`, `Python` and `Qt5` (_5.8 or newer_).
+1. Install some build tools: `CMake`, `Python` and `Qt5` (_5.9 or newer_).
 2. It's necessary to set the environment variable `Qt5_DIR` to point to the path containing the cmake folders of Qt5. Example:
 
         Qt5_DIR="~/Qt/5.9/gcc_64/lib/cmake"

src/main.cpp

@@ -31,7 +31,7 @@
 // Must be unique. Used by `SingleApplication` and `Paths`.
 #define APPLICATION_NAME "linphone"
 #define APPLICATION_VERSION LINPHONE_QT_GIT_VERSION
-#define APPLICATION_MINIMAL_QT_VERSION "5.8.0"
+#define APPLICATION_MINIMAL_QT_VERSION "5.9.0"
 
 #define DEFAULT_FONT "Noto Sans"
 

ui/modules/Common/Form/ComboBox.qml

@@ -42,9 +42,7 @@ ComboBox {
     RowLayout {
       anchors {
         fill: parent
-        leftMargin: !Utils.startsWith(App.qtVersion, '5.8')
-          ? ComboBoxStyle.contentItem.leftMargin // >= 5.9
-          : 0 // 5.8
+        leftMargin: ComboBoxStyle.contentItem.leftMargin
       }
 
       spacing: ComboBoxStyle.contentItem.spacing