From dda12bb1724d7338c66669fa2774a53c7eb6e66b Mon Sep 17 00:00:00 2001
From: Bruno Alexandre Rosa <1791393+brunoalr@users.noreply.github.com>
Date: Mon, 2 Mar 2026 23:53:38 -0300
Subject: [PATCH] take 2

---
 CMakeLists.txt | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5454469ee..3d59f19ea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -143,9 +143,15 @@ endif()
 
 # Define proper compilation flags
 if(MSVC)
+  # /Z7 when using compiler launcher (sccache): avoids C1041 PDB lock with parallel cached compiles
+  # /Zi /FS otherwise for Ninja + /MP parallel builds
+  if(CMAKE_CXX_COMPILER_LAUNCHER)
+    set(_msvc_debug_format " /Z7")
+  else()
+    set(_msvc_debug_format " /Zi /FS")
+  endif()
   # Disable Warning C4251, C++20 compatibility, Multi-threaded Builds, Warn Detection, Unwind Semantics, Debug Symbols
-  # /FS: Allow concurrent PDB writes (required for Ninja + /MP parallel builds)
-  set(CMAKE_CXX_FLAGS "/wd4251 /Zc:__cplusplus /std:c++20 /permissive- /W4 /MP /EHsc /Zi /FS")
+  set(CMAKE_CXX_FLAGS "/wd4251 /Zc:__cplusplus /std:c++20 /permissive- /W4 /MP /EHsc${_msvc_debug_format}")
   # Visual Studio: Maximum Optimization, Multi-threaded DLL
   set(CMAKE_CXX_FLAGS_RELEASE "/Ox /MD")
   # Visual Studio: No Optimization, Multi-threaded Debug DLL