On the Windows platform, msys2 compilation error occurs,error: 'readlink' was not declared in this s cope

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Windows (MinGW + Gtk)
Install MSYS2 toolchain and required libraries
MSYS2 is a software distro and building platform for Windows

Download MSYS2 from its official website and install it. Its installation guide is on the home page.

Open MSYS2 MinGW 64-bit or MSYS2 MinGW 32-bit from your start menu. Install tools and libraries:

pacman -S ${MINGW_PACKAGE_PREFIX}-toolchain
pacman -S ${MINGW_PACKAGE_PREFIX}-cairo
pacman -S ${MINGW_PACKAGE_PREFIX}-gtk3
pacman -S ${MINGW_PACKAGE_PREFIX}-libwebp
pacman -S make
Install CMake
pacman -S ${MINGW_PACKAGE_PREFIX}-cmake
Generating the Project using CMake
There are multiple ways to generate a project file using CMake depending on your platform and desired IDE, but here is an example for MSYS2:

Using UNIX makefiles
CD to the elements library.

Make a build directory inside the elements directory.

CD to the build directory.

invoke cmake. -DELEMENTS_HOST_UI_LIBRARY=gtk tells cmake to build with Gtk.

cd elements
mkdir build
cd build
cmake ../ -G "Unix Makefiles" -DELEMENTS_HOST_UI_LIBRARY=gtk

/elements/lib/host/gtk3/base_view.cpp:535:24: error: 'readlink' was not declared in this s
cope
535 | if (auto count = readlink("/proc/self/exe", result, PATH_MAX); count != -1)
| ^~~~~~~~
make[2]: *** [lib/CMakeFiles/elements.dir/build.make:815: lib/CMakeFiles/elements.dir/host/gtk3/base_view.cpp.obj] Error 1
make[1]: *** [CMakeFiles/Makefile2:838: lib/CMakeFiles/elements.dir/all] Error 2
make: *** [Makefile:91: all] Error 2