[package] qt/6.4.2: qgen qt is built in debug mode cmake cannot find qt libraries

[sabelka]

Description

I have a project where I use qt built with conan (on Windows using the MinGW toolchain).
Everything works fine if I compile in release mode, but when I switch to debug-mode, configuring my project with cmake using the conan-generated toolchain file fails. The reason is that the cmake files generated by conan use "d" suffixes for the names of Qt libraries, while the generated Qt package contains libraries without the "d" suffix.

I get the following errror message:

CMake Error at build-mingw-debug/cmakedeps_macros.cmake:39 (message):
  Library 'Qt6EntryPointd' not found in package.  If 'Qt6EntryPointd' is a
  system library, declare it with 'cpp_info.system_libs' property
Call Stack (most recent call first):
  build-mingw-debug/Qt6-Target-debug.cmake:24 (conan_package_library_targets)
  build-mingw-debug/Qt6Targets.cmake:26 (include)
  build-mingw-debug/Qt6Config.cmake:10 (include)
  CMakeLists.txt:73 (find_package)

In the Qt package there is only a libQt6EntryPoint.a but no libQt6EntryPointd.a

Package and Environment Details

• Package Name/Version: qt/6.4.2
• Operating System+version: Windows 11
• Compiler+version: GCC 12 (mingw-builds/12.2.0)
• Docker image: N/A
• Conan version: conan 1.57.0
• Python version: Python 3.11.0

Conan profile

[settings]
os=Windows
arch=x86_64
build_type=Release
compiler=gcc
compiler.threads=posix
compiler.libcxx=libstdc++11
compiler.version=12
compiler.exception=seh
[options]
[conf]
[build_requires]
*: mingw-builds/12.2.0
[env]

Steps to reproduce

My conanfile:

[requires]
qt/6.4.2
[options]
qt:with_mysql=False
qt:with_odbc=False
qt:with_brotli=False
[generators]
virtualenv
CMakeDeps
CMakeToolchain

My CMakeLists.txt:

cmake_minimum_required(VERSION 3.21)
project(testqt)
find_package(Qt6 COMPONENTS Core Widgets REQUIRED)

Commands:

mkdir build
cd build
conan install .. --build=missing -pr:h=mingw-debug -pr:b=mingw
activate.bat
cmake .. -G "MinGW Makefiles" -DCMAKE_TOOLCHAIN_FILE=conan_toolchain.cmake -DCMAKE_POLICY_DEFAULT_CMP0091=NEW -DCMAKE_BUILD_TYPE=Debug

Logs

Click to expand log

Put your log output here

[ericLemanissier]

Could you please try to change this line into if is_msvc(self): ?

[sabelka]

Yes! This works!