Merge pull request #446 from zander/cmakeWarn

axxel · web-flow · commit 4c2c3bdcc643 · 2022-12-01T11:08:32.000+01:00
Avoid big-scary cmake warning for optional lib
diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
@@ -23,7 +23,11 @@ if (BUILD_READERS)
 endif()
 
 if (BUILD_READERS)
-    find_package(Qt5 COMPONENTS Gui Multimedia Quick)
+    find_package(Qt5 COMPONENTS Gui Multimedia Quick QUIET)
+    if (NOT (Qt5_FOUND OR Qt6_FOUND))
+        message("INFO: Qt (Gui/Multimedia/Quick) not found, skipping Qt examples")
+    endif()
+
     set(CMAKE_AUTOMOC ON)
     set(CMAKE_AUTORCC ON)
 
@@ -37,10 +41,12 @@ if (BUILD_READERS)
         target_link_libraries(ZXingQtCamReader ZXing::ZXing Qt::Gui Qt::Multimedia Qt::Quick)
     endif()
 
-    find_package(OpenCV)
+    find_package(OpenCV QUIET)
     if (OpenCV_FOUND)
         add_executable (ZXingOpenCV ZXingOpenCV.cpp)
         target_include_directories (ZXingOpenCV PRIVATE ${OpenCV_INCLUDE_DIRS})
         target_link_libraries (ZXingOpenCV ZXing::ZXing ${OpenCV_LIBS})
+    else ()
+        message("INFO: OpenCV not found, skipping ZXingOpenCV example")
     endif()
 endif()
