Merge topic 'FindJNI-no-xcode' into release-3.30

7402593a08 FindJNI: Improve output on macOS if Xcode is not installed

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !9750

Modules/FindJNI.cmake

diff --git a/Modules/FindJNI.cmake b/Modules/FindJNI.cmake
index 51f05b9..82e3d88 100644
--- a/Modules/FindJNI.cmake
+++ b/Modules/FindJNI.cmake
@@ -391,8 +391,10 @@
     execute_process(
       COMMAND xcodebuild -version
       OUTPUT_VARIABLE _FindJNI_XCODEBUILD_VERSION
+      ERROR_VARIABLE _FindJNI_XCODEBUILD_VERSION
+      RESULT_VARIABLE _FindJNI_XCODEBUILD_RESULT
       )
-    if(_FindJNI_XCODEBUILD_VERSION MATCHES "Xcode ([0-9]+(\\.[0-9]+)*)")
+    if(_FindJNI_XCODEBUILD_RESULT EQUAL 0 AND _FindJNI_XCODEBUILD_VERSION MATCHES "Xcode ([0-9]+(\\.[0-9]+)*)")
       set(_FindJNI_XCODE_VERSION "${CMAKE_MATCH_1}")
     else()
       set(_FindJNI_XCODE_VERSION "")