From d1e030f6f53f630819c7ec0729f83ede1e37e3b0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kai=20K=C3=B6hne?= <kai.koehne@qt.io>
Date: Thu, 24 Apr 2025 15:32:26 +0200
Subject: [PATCH] configure: Bail out early if Xcode is not installed on macOS

Currently, configure fails late with

     Qt requires at least version 15 of Xcode, you're building against
     version . Please upgrade.

Pick-to: 6.9
Change-Id: Ic4f44d37429ac9def785a50909a25b0bcb4b72a5
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
---
 cmake/QtPublicAppleHelpers.cmake | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/cmake/QtPublicAppleHelpers.cmake b/cmake/QtPublicAppleHelpers.cmake
index 7933dc75277..8192b355c9f 100644
--- a/cmake/QtPublicAppleHelpers.cmake
+++ b/cmake/QtPublicAppleHelpers.cmake
@@ -907,6 +907,12 @@ function(_qt_internal_get_xcode_version_raw out_var)
 
         string(REPLACE "\n" " " xcode_version "${xcode_version}")
         string(STRIP "${xcode_version}" xcode_version)
+
+        if(NOT xcode_version)
+            message(FATAL_ERROR
+                    "Can't determine Xcode version. Is Xcode installed?"
+                    " Error details:\n${xcrun_error}")
+        endif()
     endif()
     set(${out_var} "${xcode_version}" PARENT_SCOPE)
 endfunction()