vs2019装opencv3.4.2cmake报错
在尝试用cmake编译opencv3.4.2版本的时候，报错如下，
CMake Warning at cmake/OpenCVDetectCXXCompiler.cmake:147 (message): OpenCV does not recognize MSVC_VERSION "1923". Cannot set OpenCV_RUNTIME Call Stack (most recent call first): CMakeLists.txt:153 (include)
错误排查流程：
-
排查出报错的位置。在 opencv-3.4.2\cmake\OpenCVDetectCXXCompiler.cmake 文件的147行。
-
尝试描述该问题，即弄清楚问题是什么——“OpenCV does not recognize MSVC_VERSION “1923”. Cannot set OpenCV_RUNTIME Call Stack (most recent call first)”我的理解是对应的_MSC_VER 1923找不到对应的vc不能设置OpenCV_RUNTIME
-
搜索该问题，一击必中。
解决方法：
if(DEFINED OpenCV_ARCH AND DEFINED OpenCV_RUNTIME)# custom overridden values
elseif(MSVC)if(CMAKE_CL_64)set(OpenCV_ARCH x64)elseif((CMAKE_GENERATOR MATCHES "ARM") OR ("${arch_hint}" STREQUAL "ARM") OR (CMAKE_VS_EFFECTIVE_PLATFORMS MATCHES "ARM|arm"))# see Modules/CmakeGenericSystem.cmakeset(OpenCV_ARCH ARM)else()set(OpenCV_ARCH x86)endif()if(MSVC_VERSION EQUAL 1400)set(OpenCV_RUNTIME vc8)elseif(MSVC_VERSION EQUAL 1500)set(OpenCV_RUNTIME vc9)elseif(MSVC_VERSION EQUAL 1600)set(OpenCV_RUNTIME vc10)elseif(MSVC_VERSION EQUAL 1700)set(OpenCV_RUNTIME vc11)elseif(MSVC_VERSION EQUAL 1800)set(OpenCV_RUNTIME vc12)elseif(MSVC_VERSION EQUAL 1900)set(OpenCV_RUNTIME vc14)//插入注释下面两段话，这里的MSVC_VERSION即表中的_MSC_VER，当1923时，是vc16，使其能识别vs2019的VC++,具体_MSC_VER值见附表elseif(MSVC_VERSION EQUAL 1910)set(OpenCV_RUNTIME vc15)elseif(MSVC_VERSION EQUAL 1923)set(OpenCV_RUNTIME vc16)elseif(MSVC_VERSION MATCHES "^193[0-9]$")set(OpenCV_RUNTIME vc17)else()message(WARNING "OpenCV does not recognize MSVC_VERSION \"${MSVC_VERSION}\". Cannot set OpenCV_RUNTIME")endif()
elseif(MINGW)set(OpenCV_RUNTIME mingw)if(MINGW64)set(OpenCV_ARCH x64)else()set(OpenCV_ARCH x86)endif()
endif()
附_MSC_VER值对应的Visual Studio版本
| Visual Studio version | _MSC_VER |
|---|---|
| Visual Studio 6.0 | 1200 |
| Visual Studio .NET 2002 (7.0) | 1300 |
| Visual Studio .NET 2003 (7.1) | 1310 |
| Visual Studio 2005 (8.0) | 1400 |
| Visual Studio 2008 (9.0) | 1500 |
| Visual Studio 2010 (10.0) | 1600 |
| Visual Studio 2012 (11.0) | 1700 |
| Visual Studio 2013 (12.0) | 1800 |
| Visual Studio 2015 (14.0) | 1900 |
| Visual Studio 2017 RTW (15.0) | 1910 |
| Visual Studio 2017 version 15.3 | 1911 |
| Visual Studio 2017 version 15.5 | 1912 |
| Visual Studio 2017 version 15.6 | 1913 |
| Visual Studio 2017 version 15.7 | 1914 |
| Visual Studio 2017 version 15.8 | 1915 |
| Visual Studio 2017 version 15.9 | 1916 |
| Visual Studio 2019 RTW (16.0) | 1920 |
| Visual Studio 2019 version 16.1 | 1921 |
| Visual Studio 2019 version 16.2 | 1922 |
| Visual Studio 2019 version 16.3 | 1923 |
| Visual Studio 2019 version 16.4 | 1924 |
| Visual Studio 2019 version 16.5 | 1925 |
| Visual Studio 2019 version 16.6 | 1926 |
VC版本与VS版本对应关系
| VS | VC |
|---|---|
| Visual Studio 6 ： | vc6 |
| Visual Studio 2003 ： | vc7 |
| Visual Studio 2005 ： | vc8 |
| Visual Studio 2008 ： | vc9 |
| Visual Studio 2010 ： | vc10 |
| Visual Studio 2012 ： | vc11 |
| Visual Studio 2013 ： | vc12 |
| Visual Studio 2015 ： | vc14 |
| Visual Studio 2017 ： | vc15 |
| Visual Studio 2019 ： | vc16 |
详见微软文档：Predefined macros(https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros?view=vs-2019)
本文来自互联网用户投稿，文章观点仅代表作者本人，不代表本站立场，不承担相关法律责任。如若转载，请注明出处。 如若内容造成侵权/违法违规/事实不符，请点击【内容举报】进行投诉反馈！