diff --git a/CMakeModules/FindLLVM.cmake b/CMakeModules/FindLLVM.cmake
index 8dc064d5d1..351850fb98 100644
--- a/CMakeModules/FindLLVM.cmake
+++ b/CMakeModules/FindLLVM.cmake
@@ -13,7 +13,8 @@ endif()
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(LLVM HANDLE_COMPONENTS CONFIG_MODE)
 
-if (LLVM_FOUND AND LLVM_Demangle_FOUND AND NOT TARGET LLVM::Demangle)
+# Demangle only for Windows targets
+if (WIN32 AND LLVM_FOUND AND LLVM_Demangle_FOUND AND NOT TARGET LLVM::Demangle)
     add_library(LLVM::Demangle INTERFACE IMPORTED)
     target_compile_definitions(LLVM::Demangle INTERFACE ${LLVM_DEFINITIONS})
     target_include_directories(LLVM::Demangle INTERFACE ${LLVM_INCLUDE_DIRS})
diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index 13de8f567d..c0e90c178b 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -49,8 +49,8 @@ if (NOT TARGET stb::headers)
     add_library(stb::headers ALIAS stb)
 endif()
 
-# ItaniumDemangle
-if (NOT TARGET LLVM::Demangle)
+# ItaniumDemangle (Windows only)
+if (WIN32 AND NOT TARGET LLVM::Demangle)
     add_library(demangle demangle/ItaniumDemangle.cpp)
     target_include_directories(demangle PUBLIC ./demangle)
     if (NOT MSVC)