From edc004ae7f5c42f95b3fd51524c481a4fe38be4e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tor=20Arne=20Vestb=C3=B8?= <tor.arne.vestbo@qt.io>
Date: Thu, 18 Apr 2024 16:37:16 +0200
Subject: [PATCH] cmake: Add opt-out for adding -no_warn_duplicate_libraries
 linker flag

The classic linker (triggered via -ld_classic) doesn't support this flag,
and we can't construct a genex that takes this into account, so add an
opt-out for Qt WebEngine.

Change-Id: I62418e0ff37fe8f5bdda2fa8d01b36a8fd44542a
Reviewed-by:  Alexey Edelev <alexey.edelev@qt.io>
(cherry picked from commit b74369c03325e49132dc77f2a83af8fd25c81a8a)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 cmake/QtInternalTargets.cmake | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmake/QtInternalTargets.cmake b/cmake/QtInternalTargets.cmake
index 576530752ac..8e8dd5cc80e 100644
--- a/cmake/QtInternalTargets.cmake
+++ b/cmake/QtInternalTargets.cmake
@@ -249,8 +249,9 @@ if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
     #   - https://gitlab.kitware.com/cmake/cmake/-/issues/25297 and
     #   - https://indiestack.com/2023/10/xcode-15-duplicate-library-linker-warnings/
     set(is_xcode15 "$<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,15>")
+    set(not_disabled "$<NOT:$<BOOL:$<TARGET_PROPERTY:QT_NO_DISABLE_WARN_DUPLICATE_LIBRARIES>>>")
     target_link_options(PlatformCommonInternal INTERFACE
-        "$<${is_xcode15}:LINKER:-no_warn_duplicate_libraries>")
+        "$<$<AND:${not_disabled},${is_xcode15}>:LINKER:-no_warn_duplicate_libraries>")
 endif()
 
 if(MSVC)