No OpenGL on ios

CMakeLists.txt

@@ -137,11 +137,12 @@ if (ANDROID)
   endif()
 endif()
 
-find_package(${QT_PKG} COMPONENTS Concurrent Core Qml Gui Xml Positioning Widgets Network Quick Svg OpenGL Sql Sensors WebView Multimedia REQUIRED)
+find_package(${QT_PKG} COMPONENTS Concurrent Core Qml Gui Xml Positioning Widgets Network Quick Svg Sql Sensors WebView Multimedia REQUIRED)
 
-# PrintSupport isn't required, because it doesn't exist for ios
-# qgis will deal with it an define a public 'QT_NO_PRINTER'
-find_package(${QT_PKG} COMPONENTS PrintSupport QUIET)
+if(CMAKE_SYSTEM_NAME NOT STREQUAL "iOS")
+  # QGIS will define a public 'QT_NO_PRINTER' if PrintSupport is not found
+  find_package(${QT_PKG} COMPONENTS PrintSupport OpenGL REQUIRED)
+endif()
 
 find_package(QGIS COMPONENTS Core Analysis REQUIRED)
 find_package(PROJ REQUIRED)