fix CMake

CMakeLists.txt

@@ -3,6 +3,16 @@ project(wjr
    LANGUAGES CXX
 )
 
+if(NOT(CMAKE_SIZEOF_VOID_P EQUAL 8))
+   message(FATAL_ERROR "Not support non 64-bit currently, CMake will exit.")
+endif()
+
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "(x86)|(X86)|(amd64)|(AMD64)")
+   set(WJR_X86 TRUE)
+else()
+   set(WJR_X86 FALSE)
+endif()
+
 if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE Release)
 endif()
@@ -18,16 +28,21 @@ set(WJR_LIB_DIR ${PROJECT_SOURCE_DIR}/src)
 
 file(GLOB_RECURSE WJR_SRCS ${WJR_LIB_DIR}/*.cpp)
 
+add_library(wjr STATIC ${WJR_SRCS})
+
 target_include_directories(wjr PUBLIC
    ${WJR_INCLUDE_DIR}
 )
 
+set(WJR_PCH PUBLIC ${WJR_INCLUDE_DIR}/wjr/preprocessor.hpp
+   PUBLIC ${WJR_INCLUDE_DIR}/wjr/assert.hpp
+   PUBLIC ${WJR_INCLUDE_DIR}/wjr/type_traits.hpp)
+
+if(WJR_X86)
+   list(APPEND ${WJR_PCH} PUBLIC ${WJR_INCLUDE_DIR}/wjr/x86/simd/intrin.hpp PUBLIC ${WJR_INCLUDE_DIR}/wjr/x86/simd/simd.hpp)
+endif()
+
 target_precompile_headers(
    wjr
-   PUBLIC ${WJR_INCLUDE_DIR}/wjr/preprocessor.hpp
-   PUBLIC ${WJR_INCLUDE_DIR}/wjr/assert.hpp
-   PUBLIC ${WJR_INCLUDE_DIR}/wjr/type_traits.hpp
-   PUBLIC ${WJR_INCLUDE_DIR}/wjr/x86/simd/simd.hpp
+   ${WJR_PCH}
 )
-
-add_library(wjr STATIC ${WJR_SRCS})