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CMake的导出如何知道目标是什么版本?

cmake build c++

0

Henricus V. · 技术社区 · 8 年前

我想建一个图书馆。My CMakeLists.txt的外观如下所示:

add_library(Lib STATIC)
set_target_properties(Lib PROPERTIES
    VERSION 0.1)
export(TARGETS Lib
    FILE ${BIN_DIR}/LibConfig.cmake)

CMake Error at CMakeLists.txt:10 (find_package):
  Could not find a configuration file for package "Lib" that is
  compatible with requested version "0.1".

  The following configuration files were considered but not accepted:

some directory/Lib/bin/LibConfig.cmake, version: unknown

查看生成的LibConfig.cmake,除了没有携带版本信息之外,没有任何错误。

1 回复 | 直到 8 年前

1

Stanley F. 8 年前

要允许CMake确定库的版本,您需要创建 LibConfigVersion.cmake 文件

可以在CMake文档中找到一个示例: generating package files

对于您的库,这会产生如下结果:

add_library(Lib STATIC)
set_target_properties(Lib PROPERTIES VERSION 0.1)
export(TARGETS LibFILE ${BIN_DIR}/LibConfig.cmake)

include(CMakePackageConfigHelpers)
write_basic_package_version_file(${BIN_DIR}/LibConfigVersion.cmake
                                 VERSION 0.1
                                 COMPATIBILITY SameMajorVersion)

您可以在中设置一次版本信息,而不是多次提供版本信息 project 命令:

project(Lib VERSION 0.1)