meson.build: Refuse XCode versions < v15.0

According to our support policy, we only support the two latest
major versions of macOS, and we already removed compatibility code
for older versions. However, it's still possible that people install
an older version of XCode on a recent version of macOS - which won't
be able to compile QEMU anymore, see for example the ticket here:

 https://gitlab.com/qemu-project/qemu/-/issues/2694

Thus let's set the expectations right and refuse older versions of
XCode that do not match the two latest versions of macOS anymore.

Message-ID: <20241126081054.244365-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

diff --git a/meson.build b/meson.build
index e0b880e4e138bd073d328c9b1f72958ec86ee814..a290dbfa33119c60cb2f4a5b30e7ed7ceabbf092 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -315,8 +315,8 @@ foreach lang : all_languages
     # ok
   elif compiler.get_id() == 'clang' and compiler.compiles('''
       #ifdef __apple_build_version__
-      # if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
-      #  error You need at least XCode Clang v12.0 to compile QEMU
+      # if __clang_major__ < 15 || (__clang_major__ == 15 && __clang_minor__ < 0)
+      #  error You need at least XCode Clang v15.0 to compile QEMU
       # endif
       #else
       # if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
@@ -325,7 +325,7 @@ foreach lang : all_languages
       #endif''')
     # ok
   else
-    error('You either need GCC v7.4 or Clang v10.0 (or XCode Clang v12.0) to compile QEMU')
+    error('You either need GCC v7.4 or Clang v10.0 (or XCode Clang v15.0) to compile QEMU')
   endif
 endforeach