[package] qt/6.7.0: Build failure on macOS with vulkan=true

[neobrain]

Description

Qt uses MoltenVK on macOS when Vulkan support is enabled. Currently, this configuration fails to build with Conan, since some of the Qt sources can't find the MoltenVK headers. A similar issue was reported in #6812 and was thought to have been fixed in #6835.

Package and Environment Details

• Package Name/Version: qt/6.7.0
• Operating System+version: macOS 14.5
• Compiler+version: clang 15
• Conan version: conan 2.3.1
• Python version: Python 3.12.3

Conan profile

[settings]
arch=armv8
build_type=Release
compiler=apple-clang
compiler.cppstd=gnu17
compiler.libcxx=libc++
compiler.version=15
os=Macos

Steps to reproduce

Due to #23684, a conanfile to force vulkan-headers to a specific version is required to reproduce this issue. Depending on your compiler version, you will also need to use the fixed MoltenVK recipe from #23866 and the fixed Qt recipe from #24013.

cat <<EOF > conanfile.py
from conan import ConanFile

class BasicConanfile(ConanFile):
    name = "pkg"

    def requirements(self):
        self.requires("qt/6.7.0")
        self.requires("vulkan-headers/1.3.268.0", force=True) # See https://github.com/conan-io/conan-center-index/issues/23684
        pass

    def configure(self):
        self.options["qt"].with_vulkan = True;

        # Disable some options to speed up the build
        self.options["qt"].with_sqlite3 = False;
        self.options["qt"].with_freetype = False;
        self.options["qt"].with_harfbuzz = False;
        self.options["qt"].with_brotli = False;
        self.options["qt"].with_md4c = False;
        self.options["qt"].with_obdc = False;
        self.options["qt"].with_libpng = False;
        self.options["qt"].openssl = False;
        self.options["qt"].opengl = "no";
        pass
EOF

conan install . --build=missing

Logs

Relevant excerpt of the logs:

FAILED: qtbase/src/plugins/platforms/cocoa/CMakeFiles/QCocoaIntegrationPlugin.dir/main.mm.o 
/Library/Developer/CommandLineTools/usr/bin/c++ -DGL_SILENCE_DEPRECATION -DQCocoaIntegrationPlugin_EXPORTS -DQT_CORE_LIB -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_UP_TO=0x050000 -DQT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH -DQT_GUI_LIB -DQT_LEAN_HEADERS=1 -DQT_NO_AS_CONST -DQT_NO_DEBUG -DQT_NO_EXCEPTIONS -DQT_NO_FOREACH -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_QEXCHANGE -DQT_PLUGIN -DQT_USE_QSTRINGBUILDER -DQT_WARN_DEPRECATED_UP_TO=0x070000 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/src/plugins/platforms/cocoa/QCocoaIntegrationPlugin_autogen/include -I/Users/tony/.conan2/p/qtbacac31821945/s/src/qtbase/src/plugins/platforms/cocoa -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/src/plugins/platforms/cocoa -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/include -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/include/QtCore -I/Users/tony/.conan2/p/qtbacac31821945/s/src/qtbase/mkspecs/macx-clang -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/src/corelib -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/include/QtCore/6.7.0 -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/include/QtCore/6.7.0/QtCore -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/include/QtGui -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/src/gui -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/include/QtGui/6.7.0 -I/Users/tony/.conan2/p/b/qt240ffd1f43b86/b/build/Release/qtbase/include/QtGui/6.7.0/QtGui -isystem /Users/tony/.conan2/p/vulkad7e0b43a2448f/p/res/vulkan/registry -isystem /Users/tony/.conan2/p/vulkad7e0b43a2448f/p/include -x objective-c++ -DNDEBUG -O2 -std=c++17 -arch arm64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -fno-exceptions -MD -MT qtbase/src/plugins/platforms/cocoa/CMakeFiles/QCocoaIntegrationPlugin.dir/main.mm.o -MF qtbase/src/plugins/platforms/cocoa/CMakeFiles/QCocoaIntegrationPlugin.dir/main.mm.o.d -o qtbase/src/plugins/platforms/cocoa/CMakeFiles/QCocoaIntegrationPlugin.dir/main.mm.o -c /Users/tony/.conan2/p/qtbacac31821945/s/src/qtbase/src/plugins/platforms/cocoa/main.mm
In file included from /Users/tony/.conan2/p/qtbacac31821945/s/src/qtbase/src/plugins/platforms/cocoa/main.mm:8:
In file included from /Users/tony/.conan2/p/qtbacac31821945/s/src/qtbase/src/plugins/platforms/cocoa/qcocoaintegration.h:8:
/Users/tony/.conan2/p/qtbacac31821945/s/src/qtbase/src/plugins/platforms/cocoa/qcocoawindow.h:19:10: fatal error: 'MoltenVK/mvk_vulkan.h' file not found
#include <MoltenVK/mvk_vulkan.h>
         ^~~~~~~~~~~~~~~~~~~~~~~
1 error generated.