Question

所以我决定尝试学习和使用CMake，这样我就可以为Windows，Linux和MacOS制作一个可移植的API。

我有我想要的两部分目录树：

/
 PsychoEngine/
              includes/
                       Engine/
                              PsychoEngine.hpp
          src/
              PsychoEngine/
                           Engine/
                                  PsychoEngine.cpp
                                  dir_engine.cmake
                           dir_pe.cmake
              dir_src.cmake
          CMakeLists.txt
 Temp_PE_Game/
          includes/
          src/
              Main/
                   TempPEGameMain.cpp
                   dir_main.cmake
              dir_src.cmake
          CMakeLists.txt
 CMakeLists.txt

所以Temp_PE_Game被设置为可执行文件，以便我可以测试我在PsychoEngine中编写的所有内容。 AFAIK，用于构建和运行Temp的CMake脚本是正确的，它运行正常。

然而，PsychoEngine，是我在努力的地方。目前我的“root”CMakeLists脚本是：

cmake_minimum_required(VERSION 3.0)
project(PsychoEngine)

message("Building PsychoEngine Library.")

set(PROJECT_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(PROJECT_SRC_FILES ${PROJECT_SRC_DIR})

include_directories(${PROJECT_SRC_DIR}/includes
                    ${CMAKE_BINARY_DIR}/exports/)

include(${PROJECT_SRC_DIR}/src/dir_src.cmake)

option(BUILD_SHARED_LIBS "Build Shared Libraries" ON)

set(LIB_TYPE STATIC)
if(BUILD_SHARED_LIBS)
    set(LIB_TYPE SHARED)
endif(BUILD_SHARED_LIBS)

include(GenerateExportHeader)
add_library(PsychoEngine ${LIB_TYPE} ${PROJECT_SRC_FILES})

GENERATE_EXPORT_HEADER(PsychoEngine
                        BASE_NAME PsychoEngine
                        EXPORT_MACRO_NAME PSYCHOENGINE_EXPORT 
                        EXPORT_FILE_NAME ${CMAKE_BINARY_DIR}/exports/PsychoEngineExports.hpp
                        STATIC_DEFINE PsychoEngine_BUILT_AS_STATIC)

这似乎也有效。但是，当我尝试在我的PsychoEngine.hpp中导入PsychoEngineExports.hpp时：

#include "PsychoEngineExports.hpp" /* PEExports.hpp */
#include <iostream>

namespace pe { namespace engine {
    class PSYCHOENGINE_EXPORT PsychoEngine {
    public:
        PsychoEngine();
        int start();
    };
}}

Visual Studio的intellisense开始抱怨它无法找到PEExports.hpp，并且类定义间歇性地以红色显示。

我想，哦，可能只是因为PEExports.hpp还没有生成，所以我在我的构建目录中重新运行了cmake，它仍然无效。

这是我的Temp_PE_Game CMakeLists.txt：

message("Building PE Temp Game.")

set(PROJECT_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(PROJECT_SRC_FILES ${PROJECT_SRC_DIR})

# Include PsychoEngine's headers
include_directories(${CMAKE_SOURCE_DIR}/PsychoEngine/includes)
include_directories(${PROJECT_SRC_DIR}/includes)

message("PE Game Binary Dir: " ${CMAKE_BINARY_DIR})
message("PE Game Executable DIR: " ${EXECUTABLE_OUTPUT_PATH})

include(${PROJECT_SRC_DIR}/src/dir_src.cmake)

add_executable(Temp_PE_Game ${PROJECT_SRC_FILES})

有什么想法吗？

干杯！

无法尝试使用CMake创建共享库

0 个答案: