cmake - cmake -D ：=： 什么可以是？

Question

-D <var>:<type>=<value>: 创建一个 cmake 缓存条目。

好的，但可以<type>是什么？我见过 BOOL、STRING、PATH、FILEPATH。这种类型还能是什么？

Answer 1

在 CMake 手册页的“缓存条目的属性”下：

TYPE   Widget type for entry in GUIs.

    Cache entry values are always strings, but CMake GUIs present widgets to help users set values.  The GUIs use this property as a hint to determine the widget type.  Valid TYPE values are:

            BOOL          = Boolean ON/OFF value.
            PATH          = Path to a directory.
            FILEPATH      = Path to a file.
            STRING        = Generic string value.
            INTERNAL      = Do not present in GUI at all.
            STATIC        = Value managed by CMake, do not change.
            UNINITIALIZED = Type not yet specified.

          Generally the TYPE of a cache entry should be set by the command which creates it (set, option, find_library, etc.).