Wrap linker flags on Windows for IntelLLVM

The Intel C++ compiler requires linker flags to be wrapped, because
CMake passes them through the compiler driver.
Prefix Linker options with `${CMAKE_CXX_LINKER_WRAPPER_FLAG}`.
This variable is set to the option to pass a linker flag through the
compiler driver by CMake. For MSVC and clang-cl or IntelLLVM pre cmake
3.25 this will be empty, so the patch will work in these cases too.

Fixes: #205
Signed-off-by: Gergely Meszaros <[email protected]>

CMakeLists.txt

@@ -88,8 +88,8 @@ if(MSVC)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /guard:cf")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /DYNAMICBASE")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /DYNAMICBASE")
-    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /DYNAMICBASE")
-    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /guard:cf")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_CXX_LINKER_WRAPPER_FLAG}/DYNAMICBASE")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_CXX_LINKER_WRAPPER_FLAG}/guard:cf")
     # enable Spectre Mitigation, not supported by clang-cl
     if((NOT CMAKE_CXX_COMPILER_ID STREQUAL Clang) AND (NOT CMAKE_CXX_COMPILER_ID STREQUAL IntelLLVM))
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Qspectre")
@@ -138,10 +138,10 @@ if(MSVC)
 
     # enable creation of PDB files for Release Builds
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Zi")
-    set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /DEBUG /OPT:REF /OPT:ICF")
+    set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} ${CMAKE_CXX_LINKER_WRAPPER_FLAG}/DEBUG ${CMAKE_CXX_LINKER_WRAPPER_FLAG}/OPT:REF ${CMAKE_CXX_LINKER_WRAPPER_FLAG}/OPT:ICF")
 
     # enable CET shadow stack
-    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /CETCOMPAT")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_CXX_LINKER_WRAPPER_FLAG}/CETCOMPAT")
 
     #Use of sccache with MSVC requires workaround of replacing /Zi with /Z7
     #https://github.com/mozilla/sccache