diff --git a/sycl-jit/CMakeLists.txt b/sycl-jit/CMakeLists.txt
index a4960e4fa3cf7..0375dc2db7d17 100644
--- a/sycl-jit/CMakeLists.txt
+++ b/sycl-jit/CMakeLists.txt
@@ -9,16 +9,18 @@ set(SYCL_JIT_BASE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 # directories, similar to how clang/CMakeLists.txt does it.
 set(LLVM_SPIRV_INCLUDE_DIRS "${LLVM_MAIN_SRC_DIR}/../llvm-spirv/include")
 
-if (NOT WIN32 AND NOT CYGWIN)
-  # Set library-wide warning options.
-  set(SYCL_JIT_WARNING_FLAGS -Wall -Wextra -Wconversion -Wimplicit-fallthrough)
-
-  option(SYCL_JIT_ENABLE_WERROR "Treat all warnings as errors in SYCL JIT library" ON)
-  if(SYCL_JIT_ENABLE_WERROR)
-    list(APPEND SYCL_JIT_WARNING_FLAGS -Werror)
-  endif(SYCL_JIT_ENABLE_WERROR)
-endif()
+option(SYCL_JIT_ENABLE_WERROR "Treat all warnings as errors in SYCL JIT library" ON)
 
+# sycl-jit warning flags; host GCC: -Wno-error=conversion on LLVM/Clang headers.
+function(sycl_jit_apply_target_warning_flags target)
+  if(WIN32 OR CYGWIN)
+    return()
+  endif()
+  target_compile_options(${target} PRIVATE
+    -Wall -Wextra -Wconversion -Wimplicit-fallthrough
+    $<$<BOOL:${SYCL_JIT_ENABLE_WERROR}>:-Werror>
+    $<$<COMPILE_LANG_AND_ID:CXX,GNU>:-Wno-error=conversion>)
+endfunction()
 
 add_subdirectory(jit-compiler)
 add_subdirectory(passes)
diff --git a/sycl-jit/jit-compiler/CMakeLists.txt b/sycl-jit/jit-compiler/CMakeLists.txt
index e0ac377ac4195..c32fe7e4b1efa 100644
--- a/sycl-jit/jit-compiler/CMakeLists.txt
+++ b/sycl-jit/jit-compiler/CMakeLists.txt
@@ -187,10 +187,7 @@ if(WIN32)
   target_link_libraries(sycl-jit PRIVATE Shlwapi)
 endif()
 
-target_compile_options(sycl-jit PRIVATE ${SYCL_JIT_WARNING_FLAGS})
-# Host GCC can hit -Werror=conversion on Clang headers in DeviceCompilation.cpp;
-target_compile_options(sycl-jit PRIVATE
-  $<$<COMPILE_LANG_AND_ID:CXX,GNU>:-Wno-error=conversion>)
+sycl_jit_apply_target_warning_flags(sycl-jit)
 
 # Mark LLVM and SPIR-V headers as system headers to ignore warnigns in them.
 # This classification remains intact even if the same paths are added as normal
diff --git a/sycl-jit/passes/CMakeLists.txt b/sycl-jit/passes/CMakeLists.txt
index 64896b5cdce36..2ff9367d804f6 100644
--- a/sycl-jit/passes/CMakeLists.txt
+++ b/sycl-jit/passes/CMakeLists.txt
@@ -10,7 +10,7 @@ if (NOT WIN32 AND NOT CYGWIN)
     intrinsics_gen
   )
 
-  target_compile_options(SYCLJITPassesPlugin PRIVATE ${SYCL_JIT_WARNING_FLAGS})
+  sycl_jit_apply_target_warning_flags(SYCLJITPassesPlugin)
 
   # Mark LLVM headers as system headers to ignore warnigns in them. This
   # classification remains intact even if the same path is added as a normal
@@ -58,7 +58,7 @@ add_llvm_library(SYCLJITPasses
   SYCLLowerIR
 )
 
-target_compile_options(SYCLJITPasses PRIVATE ${SYCL_JIT_WARNING_FLAGS})
+sycl_jit_apply_target_warning_flags(SYCLJITPasses)
 
 # Mark LLVM headers as system headers to ignore warnigns in them. This
 # classification remains intact even if the same path is added as a normal