没有 C 编译器的主机上的 CMake 用于非 C 项目

Question

我想使用 CMake 为非 C 项目生成 makefile。我不需要 C 编译器来构建我的项目。事实上，我的主机上没有安装C编译器。

我的CMakeLists.txt样子：

cmake_minimum_required (VERSION 2.6)
project (the_thing.html)

LIST(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/Modules/cmake-pandocology")
INCLUDE(pandocology)

add_document(
    TARGET the_thing
    OUTPUT_FILE the_thing.html
    SOURCES the_thing.md
)

当我在 Windows 机器上运行 cmake 时：

$ mkdir dict && cd dist
$ cmake .. -G"Unix Makefiles"
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:2 (project):
  No CMAKE_C_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.


CMake Error at CMakeLists.txt:2 (project):
  No CMAKE_CXX_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.


-- Configuring incomplete, errors occurred!
See also ".../dist/CMakeFiles/CMakeOutput.log".
See also ".../dist/CMakeFiles/CMakeError.log".

这两个日志文件没有提供额外的线索。如何修复该项目以忽略 C（和 C++）编译器的缺失？

Answer 1

你需要明确地说没有语言。

project("the_thing.html"
    LANGUAGES
        NONE
)

这是来自我的一个项目，但它使用现代 CMake（最低版本是 2.6）。上面的方法可能对你有用，但如果没有，这应该可以：

project("the_thing.html" NONE)