我可以强制cmake将头文件包含在特定目标中吗？ [英] Can I force cmake to include my header file in specific targets?

问题描述

我有一个头文件，该头文件用宏覆盖了malloc。使用 add_definitions（-include ../ include / failing-malloc-test.h），我可以强制cmake在所有目标文件中包含此头文件。问题是我只想将我的头文件包含在某些目标（测试目标等）中。我尝试使用 target_compile_definition 实现此目的，但我无法达到相同的效果，因为 target_compile_definition 似乎与 add_definitions 。目前，我唯一想到的解决方案是复制所有源文件并手动添加 #include failing-malloc-test.h -我显然想避免这样做。

I have a header file which overrides malloc with a macro. Using add_definitions(-include ../include/failing-malloc-test.h) I'm able to force cmake to include this header file in all targets. The problem is that I only want to have my header file included in some targets(test targets and so on). I tried achieving this using target_compile_definition, but I couldn't achieve the same effect, because target_compile_definition seems to work different than add_definitions. Currently the only solution that I can think of is duplicating all source files and adding the #include "failing-malloc-test.h" manually - what I obviously want to avoid doing.

推荐答案

CMake具有基于属性的机制。您可以分配给目标，源文件和其他部分的属性。使用目标是通常的默认操作，因此提供了一系列的 target _ * 命令来设置目标的属性。如果要为特定目标中的所有源添加编译选项，请使用 target_compile_options 。请勿使用 COMPILE_DEFINITIONS 属性，用于定义除预处理程序符号以外的其他选项。这样您就可以使用

CMake has a properties-based mechanism. You can assign to properties on targets, source files, and other parts. Working with targets is the usual and default action, so a whole family of target_* commands are provided for setting properties on targets. If you want to add a compile option for all sources in a specific target then use target_compile_options. Do not use the COMPILE_DEFINITIONS property for other options than defining pre-processor symbols. So you be able to get what you want with

target_compile_options(<my-test-target> "-include ../include/failing-malloc-test.h")

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