CMake WxWidgets project successfully built on linux but not on windows - c++

Question

I've managed to build a WxWidgets based on CMake on Ubuntu 19.10, but failed on Windows 10, saying that it cannot find WxWidgets, though I've built it successfully (static, release and with unicode support).
WxWidgets path is C:\wxWidgets-3.1.3 and the build directory is C:\wxWidgets-3.1.3\msw-release.
The makefile is
cmake_minimum_required(VERSION 3.0)
project(ChessPgnReviser VERSION 0.1.0)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
ADD_DEFINITIONS(-Wall -Wno-sign-compare -O2)
set(SRCS
src/main.cpp
)
set (HEADERS
)
message( "--Root--" ${wxWidgets_ROOT_DIR} )
message( "--Lib dir--" ${wxWidgets_LIB_DIR} )
add_executable(ChessPgnReviser ${SRCS} ${HEADERS})
find_package(wxWidgets COMPONENTS net gl core base)
if(wxWidgets_FOUND)
include(${wxWidgets_USE_FILE})
target_link_libraries(ChessPgnReviser ${wxWidgets_LIBRARIES})
else()
message(FATAL_ERROR "Failed to find WxWidgets library")
endif()
I'm using Msys 64 bit in order to compile the project. At the bottom of its subfolder etc/profile, I've added
PATH=$PATH:/c/dev/cmake/bin
wxWidgets_ROOT_DIR=/c/wxWidgets-3.1.3
wxWidgets_LIBRARIES=$wxWidgets_ROOT_DIR/msw-release/lib
wxWidgets_LIB_DIR=$wxWidgets_ROOT_DIR/msw-release/lib
wxWidgets_INCLUDE_DIRS=$wxWidgets_ROOT_DIR/include
So I've tried
$ mkdir build && cd build
$ cmake .. -G "MinGW Makefiles"
-- The C compiler identification is GNU 10.1.0
-- The CXX compiler identification is GNU 10.1.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/msys64/mingw64/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:/msys64/mingw64/bin/g++.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
--Root--
--Lib dir--
-- Could NOT find wxWidgets (missing: wxWidgets_LIBRARIES wxWidgets_INCLUDE_DIRS net gl core base)
CMake Error at CMakeLists.txt:27 (message):
Failed to find WxWidgets library
-- Configuring incomplete, errors occurred!
See also "C:/Users/laure/Documents/Programmation/ProjetsPersos/Cpp/ChessPgnReviserWxWidgets/build/CMakeFiles/CMakeOutput.log".
Also, thanks to #squareskittles, I also tried:
$ cmake .. -G "MinGW Makefiles" -DwxWidgets_ROOT_DIR="C:\wxWidgets-3.1.3" -DwxWidgets_LIB_DIR="C:\wxWidgets-3.1.3\msw-release\lib"
-- The C compiler identification is GNU 10.1.0
-- The CXX compiler identification is GNU 10.1.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/msys64/mingw64/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:/msys64/mingw64/bin/g++.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
--Root--C:\wxWidgets-3.1.3
--Lib dir--C:\wxWidgets-3.1.3\msw-release\lib
-- Could NOT find wxWidgets (missing: wxWidgets_LIBRARIES wxWidgets_INCLUDE_DIRS net gl core base)
CMake Error at CMakeLists.txt:27 (message):
Failed to find WxWidgets library
-- Configuring incomplete, errors occurred!
See also "C:/Users/laure/Documents/Programmation/ProjetsPersos/Cpp/ChessPgnReviserWxWidgets/build/CMakeFiles/CMakeOutput.log".
You can find the content of the msw-release folder : there.
Also:
$ ls /c/wxWidgets-3.1.3/msw-release/lib/
libwx_baseu_net-3.1.a libwx_baseu-3.1.a libwx_mswu_aui-3.1.a libwx_mswu_gl-3.1.a libwx_mswu_media-3.1.a libwx_mswu_qa-3.1.a libwx_mswu_richtext-3.1.a libwx_mswu_webview-3.1.a libwxregexu-3.1.a wx
libwx_baseu_xml-3.1.a libwx_mswu_adv-3.1.a libwx_mswu_core-3.1.a libwx_mswu_html-3.1.a libwx_mswu_propgrid-3.1.a libwx_mswu_ribbon-3.1.a libwx_mswu_stc-3.1.a libwx_mswu_xrc-3.1.a libwxscintilla-3.1.a
So did I forget something ?

Answer 1

To properly detect wxWidgets you need wx-config.
A Windows version of wx-config exists and can be downloaded from: https://github.com/kowey/wx-config-win
To make wx-config know where your wxWidgets is, you need set the following environment variables:
WXWIN (in your case to C:/wxWidgets-3.1.3)
WXCFG (in your case to something like msw/gcc_mswu).