Build fail with CMake + Qt (QUiLoader)

[stloeffler]

When trying to compile the following minimal example
CMakeLists.txt:

cmake_minimum_required(VERSION 3.0)
find_package(Qt5 REQUIRED COMPONENTS Core Widgets Gui UiTools)

include_directories(${Qt5UiTools_INCLUDE_DIRS})
add_executable(mxe-cmake-qtuitools mxe-cmake-qtuitools.cpp)
# NB: Qt5Widgets, Qt5Gui, Qt5Core must be given separately; otherwise they are
# appended automatically at the end, making it impossible to satisfy all the
# other implicit dependencies (opengl, harfbuzz, etc.)
target_link_libraries(mxe-cmake-qtuitools ${Qt5UiTools_LIBRARIES} ${Qt5Widgets_LIBRARIES} ${Qt5Gui_LIBRARIES} ${Qt5Core_LIBRARIES} opengl32 harfbuzz jpeg png glib-2.0 winmm ws2_32 intl iconv pcre16 z)

mxe-cmake-qtuitools.cpp:

#include <QUiLoader>

int main() {
    QUiLoader l;
    return 0;
}

(which uses QUiLoader, which is part of Qt5UiTools) I get the following error message:
CMakeFiles/mxe-cmake-qtuitools.dir/build.make:89: *** target pattern contains no '%'. Stop.
build.make:89 reads
mxe-cmake-qtuitools.exe: Qt5::UiPlugin-NOTFOUND
although Qt5::UiPlugin is built and CMake doesn't complain while configuring.

This seems to be similar to Alexpux/MINGW-packages#762 which apparently has been resolved by patching Qt with https://github.com/Alexpux/MINGW-packages/blob/master/mingw-w64-qt5-static/0038-qt-5.5.0-cmake-Rearrange-STATIC-vs-INTERFACE-targets.patch

[starius]

It is reproducible here. I'll try to rebuild Qt5 with this patch saved to file src/qtbase-3-make-Rearrange-STATIC-vs-INTERFACE-targets.patch

[starius]

It works with this patch.

[starius]

I'll open a pull request adding the patch and the test.