如果使用CMAKE作为构建系统，如何为mingw定义UNICODE [英] How to define UNICODE for mingw, if use CMAKE as building system

问题描述

早上好，我在Windows平台上使用Cmake构建系统构建了Qt项目，但是如果我在cmake文件中添加行:

Good day, i build my Qt project with Cmake build system on windows platform, but if i add line in cmake file:

add_definitions("-DUNICODE -D_UNICODE")

UNICODE的定义不起作用(MINGW)，仅当我使用MSVC编译器构建项目时，此功能才能正常工作.一段时间后，我找到了解决方法

definition of UNICODE not working(MINGW), this work properly only if i build my project with MSVC compiler. After some times i found workaround How do I define a variable when I call CMake, so that qtcreator knows it is defined?, this solution work but if i use native WINAPI functions such as CreateFile i get the compile error, because compiler chose CreateFileA but i use w_char and i would like to use CreateFileW, this is because the definition of macro UNICODE appears before than i include my confugure file.How can i define UNICODE macro in cmakefile?

推荐答案

您是否尝试过(请注意没有引号):

Have you tried (note the lack of quotes):

add_definitions(-DUNICODE -D_UNICODE)

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