MSVC与CMake和Ninja生成器的增量链接 [英] MSVC Incremental linking with CMake and the Ninja generator
问题描述
我在Windows上使用CMake和Ninja生成器构建了一个共享库。我想使用增量链接来减少链接所需的时间。
I build a shared library with CMake and the Ninja generator on Windows. I'd like to use incremental linking to reduce the time required for linking.
我尝试将 CMAKE_SHARED_LINKER_FLAGS 设置为 / incremental ，但此标志始终被CMake附加的 / INCREMENTAL：NO 覆盖。
I tried to set CMAKE_SHARED_LINKER_FLAGS to "/incremental" but this flag is always overridden by a "/INCREMENTAL:NO" which is appended by CMake.
我还尝试将 MSVC_INCREMENTAL_DEFAULT 设置为 ON ，但这没有任何作用。
I also tried to set MSVC_INCREMENTAL_DEFAULT to ON, but this didn't have any effect.
那么我如何使用CMake和Ninja生成器进行增量链接？
So how can I get incremental linking working with CMake and the Ninja generator?
推荐答案
将我的评论变成答案
我使用了类似的在我的VS工具链文件中设置（CMAKE_EXE_LINKER_FLAGS_RELEASE / INCREMENTAL：YES缓存字符串强制）。
请注意，CMake确实可以合并/附加其链接器标志，例如 CMAKE_SHARED_LINKER_FLAGS 和特定于构建类型的部分，例如 CMAKE_SHARED_LINKER_FLAGS_RELEASE 。
Be aware that CMake does combine/append its linker flags out of the general e.g. CMAKE_SHARED_LINKER_FLAGS and the build type specific parts like CMAKE_SHARED_LINKER_FLAGS_RELEASE.
因此，您必须找出CMake确实为共享库设置了 / INCREMENTAL：NO 的位置-正如您和我所做的那样-并用以下内容覆盖：
So you have to either find out where CMake does set /INCREMENTAL:NO for shared libraries - as you and I have done - and overwrite it with:
set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "/INCREMENTAL:YES")
或者您可以遍历不同的构建配置特定变量，例如：
Or you could iterate over the different build configuration specific variables like:
- CMake使用/ MT而不是/ MD进行编译
- < a href = http://cmake.3232098.n2.nabble.com/How-to-set-a-preprocessor-define-for-all-build-configurations-except-one-td6450520.html rel = nofollow noreferrer> CMake：如何为除一个以外的所有构建配置设置一个预处理器定义？
- CMake compile with /MT instead of /MD
- CMake: How to set a preprocessor define for all build configurations except one ?
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