MinGW on wxWidgets: cmake参数查找wxWidgets？

Question

类似的问题已经存在，但我还没有找到一个有效的答案。

我需要使用wxWidgets在MinGW中构建一个mingw项目，我希望使用命令行中的cmake命令(我使用巧克力安装了mingw、cmake和bash )。

我想避免编译wxWidgets，所以我使用预构建的二进制文件MinGW-w64 10.2 (Headers + Dev x64 + Release x64)，将它们解压缩到C:\wxWidgets-3.1.5。

我为cmake尝试了许多参数组合，但没有找到第一次运行的参数，我说第一次运行是因为我找到了第二次运行的参数：

cmake .. -G "MinGW Makefiles" \
     -DwxWidgets_ROOT_DIR=/c/wxWidgets-3.1.5/ \
     -DwxWidgets_LIB_DIR=/c/wxWidgets-3.1.5/lib/gcc1020_x64_dll/

我不是cmake专家，但我设想，通过在第一次运行中指定这些参数，就可以缓存这些参数，并在第二次运行中使用它们，从而绕过搜索。

我想知道的是，为了让它们被正确地找到，我必须给出哪些论点，_CONFIGURATION，_ROOT_DIR，_LIBRARIES，_INCLUDE_DIRS似乎没有任何效果。

编辑↓

CMakelists.txt

cmake_minimum_required(VERSION 3.18)
project(Test)
set(wxWidgets_USE_LIBS)
find_package(wxWidgets REQUIRED) 
if(wxWidgets_FOUND)
    include(${wxWidgets_USE_FILE})
    add_executable(MyTest WIN32 main.cpp)
    target_link_libraries(MyTest ${wxWidgets_LIBRARIES})
else(wxWidgets_FOUND)
    message("wxWidgets not found!")
endif(wxWidgets_FOUND)

使用的命令行：

cmake .. -G "MinGW Makefiles" -DwxWidgets_ROOT_DIR=/c/wxWidgets-3.1.5/ -DwxWidgets_LIB_DIR=/c/wxWidgets-3.1.5/lib/gcc1020_x64_dll/  -DwxWidgets_wxrc_EXECUTABLE=/c/wxWidgets-3.1.5/lib/gcc1020_x64_dll/wxrc.exe -DCMAKE_BUILD_TYPE=Release -DwxWidgets_LIBRARIES=/c/wxWidgets-3.1.5/lib/gcc1020_x64_dll/ -DwxWidgets_INCLUDE_DIRS=/c/wxWidgets-3.1.5/include/

第一轮：

-- The C compiler identification is GNU 10.2.0
-- The CXX compiler identification is GNU 10.2.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/ProgramData/chocolatey/bin/gcc.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/ProgramData/chocolatey/bin/g++.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Could NOT find wxWidgets (missing: wxWidgets_LIBRARIES wxWidgets_INCLUDE_DIRS core base) 
-- Configuring done
-- Generating done
-- Build files have been written to: C:/Users/Alex/Documents/Progetti/wx-test/build
wxWidgets not found!

第二轮：

-- Found wxWidgets: debug;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxmsw31ud_core.a;optimized;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxmsw31u_core.a;debug;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxbase31ud.a;optimized;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxbase31u.a;debug;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxbase31ud_net.a;optimized;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxbase31u_net.a;debug;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxpngd.a;optimized;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxpng.a;debug;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxtiffd.a;optimized;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxtiff.a;debug;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxjpegd.a;optimized;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxjpeg.a;debug;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxzlibd.a;optimized;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxzlib.a;debug;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxregexud.a;optimized;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxregexu.a;debug;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxexpatd.a;optimized;C:/wxWidgets-3.1.5/lib/gcc1020_x64_dll/libwxexpat.a;winmm;comctl32;uuid;oleacc;uxtheme;rpcrt4;shlwapi;version;wsock32 (found version "3.1.5") found components: core base net png tiff jpeg zlib regex expat 
-- Configuring done
-- Generating done
-- Build files have been written to: C:/Users/Alex/Documents/Progetti/wx-test/build

如果我使用find_package(wxWidgets REQUIRED)

CMake Error at C:/Program Files/CMake/share/cmake-3.21/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
  Could NOT find wxWidgets (missing: wxWidgets_LIBRARIES
  wxWidgets_INCLUDE_DIRS)
Call Stack (most recent call first):
  C:/Program Files/CMake/share/cmake-3.21/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
  C:/Program Files/CMake/share/cmake-3.21/Modules/FindwxWidgets.cmake:1025 (find_package_handle_standard_args)
  CMakeLists.txt:24 (find_package)

Answer 1

感谢Process Monitor，我注意到FindwxWidgets.cmake在gcc_dll/ (而不是gcc2010_x64_dll/)中查找库，一旦目录被重命名，cmake -G "MinGW Makefiles" -DwxWidgets_ROOT_DIR=/c/wxWidgets-3.1.5就足以在第一次运行时找到目录。