[vcpkg] Cannot use wxGLCanvas in CMake project on Windows

[sidy3d]

Reference: microsoft/vcpkg#38539

Build System Used

I build wxWidgets and/or my application using:

• CMake
• configure
• mingw32-make with makefile.gcc
• MSBuild (Microsoft Visual Studio solution file)
• nmake with makefile.vc
• Xcode

Description

Cannot use wxGLCanvas in a CMake project using vcpkg on Windows. The same project works fine when using Visual Studio and vcpkg.

CMakeLists.txt

cmake_minimum_required (VERSION 3.28)

set(CMAKE_CXX_STANDARD 20)
project (openGLIntergration CXX)

find_package(gl3w CONFIG REQUIRED)
find_package(wxwidgets CONFIG REQUIRED)

# Add source to this project's executable.
add_executable (openGLIntergration WIN32 "main.cpp")

target_link_libraries(openGLIntergration PRIVATE unofficial::gl3w::gl3w)
target_link_libraries(openGLIntergration PRIVATE wx::core wx::base wx::wxgl)

Failure Log:

Severity	Code	Description	Project	File	Line	Suppression State	Details
Error		CMake Error at out/build/x64-Debug-MSVC/vcpkg_installed/x64-windows/share/wxwidgets/wxWidgetsTargets.cmake:159 (set_target_properties):
  The link interface of target "wx::wxgl" contains:

    OpenGL::GLU

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.		C:\dev\source\wxWidgetsTutorials\openGLIntergration\out/build/x64-Debug-MSVC/vcpkg_installed/x64-windows/share/wxwidgets/wxWidgetsTargets.cmake	159		

Platform and version information

• wxWidgets version you are building: 3.2.4
• wxWidgets port you are building: wxMSW
• OS and its version: Windows 11
• Compiler being used: MSVC 2022
• Non-default compiler options, if any: None

[MaartenBent]

What if you add find_package(OpenGL) to your CMake file?
I think this has been fixed in the wx-master branch

wxWidgets/build/cmake/wxWidgetsConfig.cmake.in

Line 145 in f53e852

find_package(OpenGL QUIET)

but 3.2 does not have this.

[vadz]

@MaartenBent If you think it's worth doing this, I could still backport 302ad5f to 3.2 and rebuild the 3.2.5 source archives once again (this wouldn't affect the MSW binaries). Should I do this?

[MaartenBent]

I don't think it is necessary to add this to 3.2.5 and recreate the release files. The workaround is easy enough.

I can create a PR with the backport, and maybe include some other stuff from #24263 as well.

[sidy3d]

What if you add find_package(OpenGL) to your CMake file? I think this has been fixed in the wx-master branch

wxWidgets/build/cmake/wxWidgetsConfig.cmake.in

Line 145 in f53e852

find_package(OpenGL QUIET)

but 3.2 does not have this.

Thanks, this seems to have fixed the issue.