Windows下CMake构建oatpp-sqlite时无法找到oatpp包的解决方法咨询

环境信息 #

• oatpp安装目录：C:\Users\Aditya\oatpp\oatpp-1.3.0-latest
• Visual Studio版本：Visual Studio 17 2022
• CMake版本：[请执行cmake --version查看并补充]

问题描述 #

在oatpp-sqlite的build目录执行cmake ..时，出现CMake错误：

CMake Error at CMakeLists.txt:52 (find_package):
By not providing "Findoatpp.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "oatpp", but CMake did not find one.
Could not find a package configuration file provided by "oatpp" (requested version 1.3.0) with any of the following names:
oatppConfig.cmake
oatpp-config.cmake
Add the installation prefix of "oatpp" to CMAKE_PREFIX_PATH or set "oatpp_DIR" to a directory containing one of the above files.

已尝试添加CMAKE_PREFIX_PATH参数但无效：

cmake .. -DCMAKE_PREFIX_PATH=C:\Users\Aditya\oatpp\oatpp-1.3.0-latest  

解决方案 #

1. 定位oatpp的配置文件目录 #

首先在oatpp安装目录下搜索oatppConfig.cmake或oatpp-config.cmake文件，这类文件通常位于以下子目录中：

• lib/cmake/oatpp-1.3.0
• share/oatpp/cmake

比如实际路径可能是C:\Users\Aditya\oatpp\oatpp-1.3.0-latest\lib\cmake\oatpp-1.3.0，请确认该目录下存在上述配置文件。

2. 直接指定oatpp_DIR参数 #

CMake的oatpp_DIR变量可以直接指向包含配置文件的目录，这比CMAKE_PREFIX_PATH更精准。执行以下命令（替换成你找到的实际路径）：

cmake .. -Doatpp_DIR=C:\Users\Aditya\oatpp\oatpp-1.3.0-latest\lib\cmake\oatpp-1.3.0

3. 确认oatpp安装完整性 #

如果是自行编译安装的oatpp：

• 确认编译时指定的CMAKE_INSTALL_PREFIX为C:\Users\Aditya\oatpp\oatpp-1.3.0-latest
• 确保执行了安装步骤：在Visual Studio中运行INSTALL项目，或者在oatpp的build目录执行cmake --install .命令

4. 检查CMake版本兼容性 #

oatpp 1.3.0要求CMake版本至少为3.10，执行cmake --version确认版本，若版本过低请升级CMake。

内容的提问来源于stack exchange，提问作者Aditya Hagawane