From c5a5f79d7a8dbe0be6b800413b01736a440310ec Mon Sep 17 00:00:00 2001
From: Mario Emmenlauer <memmenlauer@biodataanalysis.de>
Date: Tue, 10 Oct 2023 12:01:13 +0200
Subject: [PATCH] build/cmake/DefinePlatformSpecifc.cmake: Separated MSVC and
 Clang-Cl settings for Windows

---
 build/cmake/DefinePlatformSpecifc.cmake | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/build/cmake/DefinePlatformSpecifc.cmake b/build/cmake/DefinePlatformSpecifc.cmake
index 84409e6ff51..a78d80cac46 100644
--- a/build/cmake/DefinePlatformSpecifc.cmake
+++ b/build/cmake/DefinePlatformSpecifc.cmake
@@ -25,8 +25,12 @@ set(CMAKE_DEBUG_POSTFIX "d" CACHE STRING "Set debug library postfix")
 
 # basic options
 foreach(lang IN ITEMS C CXX)
-  if("CMAKE_${lang}_COMPILER_ID" STREQUAL "MSVC" OR "${CMAKE_${lang}_SIMULATE_ID}" STREQUAL "MSVC")
+  if("CMAKE_${lang}_COMPILER_ID" STREQUAL "MSVC")
+    # These flags are not supported (or needed) with Clang-Cl on Windows:
     set(CMAKE_${lang}_FLAGS "${CMAKE_${lang}_FLAGS} /MP") # parallel build
+  endif()
+
+  if("CMAKE_${lang}_COMPILER_ID" STREQUAL "MSVC" OR "${CMAKE_${lang}_SIMULATE_ID}" STREQUAL "MSVC")
     set(CMAKE_${lang}_FLAGS "${CMAKE_${lang}_FLAGS} /W3") # warning level 3
     include(CheckCXXCompilerFlag)
     set(CMAKE_REQUIRED_QUIET ON)