Bug 929227

The way these files were written, they assume that 1. the *Config*.cmake files are all directly in the root of the prefix and 2. the other directories are all relative to that in the default way, e.g. bindir is prefix + "/bin" etc. 1. is definitely wrong, 2. may also be wrong.

right, in particular, everything that matches:
%{libdir}/cmake/Qt5*/Qt5*Config.cmake
contains similar code to set erroneous _qt5*_install_prefix variables

Sent query to upstream ml for starters,
http://lists.qt-project.org/pipermail/development/2013-March/010614.html

The *.cmake.in templates look like this:
mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in:get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
src/widgets/Qt5WidgetsConfigExtras.cmake.in:get_filename_component(_qt5_widgets_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
src/corelib/Qt5CoreConfigExtras.cmake.in:get_filename_component(_qt5_corelib_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
src/dbus/Qt5DBusConfigExtras.cmake.in:get_filename_component(_qt5_dbus_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
so the problem is that $${CMAKE_RELATIVE_INSTALL_DIR} vanishes in the installed files. It should probably be "../../qt5", but it's completely replaced away by the .cmake.in → .cmake generation.

mkspecs/features/create_cmake.prf:

CMAKE_LIB_DIR = $$[QT_INSTALL_LIBS]/
contains(CMAKE_LIB_DIR, "$${CMAKE_QT_INSTALL_PREFIX_ESCAPED}.*") {
    CMAKE_LIB_DIR = $$replace(CMAKE_LIB_DIR, "$$CMAKE_QT_INSTALL_PREFIX_ESCAPED", )
    CMAKE_RELATIVE_INSTALL_DIR = $$replace(CMAKE_LIB_DIR, "[^/]+", ..)
    # We need to go up another two levels because the CMake files are
    # installed in $${CMAKE_LIB_DIR}/cmake/Qt5$${CMAKE_MODULE_NAME}
    CMAKE_RELATIVE_INSTALL_DIR = "$${CMAKE_RELATIVE_INSTALL_DIR}../../"
} else {
    CMAKE_LIB_DIR_IS_ABSOLUTE = True
}

is this part not used or failing somehow?

> contains(CMAKE_LIB_DIR, "$${CMAKE_QT_INSTALL_PREFIX_ESCAPED}.*")
is false because CMAKE_LIB_DIR is not a subdirectory of $${CMAKE_QT_INSTALL_PREFIX_ESCAPED} (but the other way round).

So we enter the CMAKE_LIB_DIR_IS_ABSOLUTE case and the *Config*.cmake files are not written to handle that at all.

There's no code to handle a prefix within the libdir.

Ah, so maybe one of my earlier naive suggestions to set
_qt5_prefix to be /usr (instead of %{_libdir}/qt5) may help here, but that may also have other side-effects as well.

Yeah, if you do that, it'll probably expect the unsuffixed binaries to be under /usr/bin. I guess we could patch in the suffixes (or patch the path) though. But it might also affect the placement of other files.

I'll have a look at create_cmake.prf to see whether I can make it do something sensible, I know both QMake and CMake to some extent.

Tried qtbase-5.0.2-rc1, and problem appears to be fixed.  I'll do a little more testing to confirm, and import into rawhide.

Hrm, still not quite right, per bug #950213 , trying to build Sigil , I get odd output like:

CMake Warning at /usr/lib64/cmake/Qt5Widgets/Qt5WidgetsConfig.cmake:49 (find_package):
  Could not find a package configuration file provided by "Qt5Gui" with any
  of the following names:

    Qt5GuiConfig.cmake
    qt5gui-config.cmake

Except here they are:
/usr/lib64/cmake/Qt5Gui/Qt5GuiConfig.cmake
/usr/lib64/cmake/Qt5Gui/Qt5GuiConfigVersion.cmake

Ah, upstream pointed me to this:
https://codereview.qt-project.org/52778

building... let's see if this one helps

%changelog
* Wed Apr 10 2013 Rex Dieter <rdieter> - 5.0.2-1
- 5.0.2
- fix cmake config (#929227)

confirmed, mmm-mmm good this time. yay.

*** Bug 950213 has been marked as a duplicate of this bug. ***

Not quite 100% there ...

after installing, do in source tree:

$ cd /tests/auto/cmake; mkdir build; cd build; cmake ..;
$ ctest --output-on-failure

Test project /home/rdieter1/pkgs.fedoraproject.org/qt5-qtbase/qtbase-opensource-src-5.0.2/tests/auto/cmake/build
      Start  1: test_use_modules_function
 1/18 Test  #1: test_use_modules_function .........***Failed    0.03 sec
Internal cmake changing into directory: /home/rdieter1/pkgs.fedoraproject.org/qt5-qtbase/qtbase-opensource-src-5.0.2/tests/auto/cmake/build/test_use_modules_function
Error: cmake execution failed
CMake Warning at /usr/lib64/cmake/Qt5Core/Qt5CoreMacros.cmake:237 (find_package):
  Could not find a package configuration file provided by "Qt5Test" with any
  of the following names:

    Qt5TestConfig.cmake
    qt5test-config.cmake

  Add the installation prefix of "Qt5Test" to CMAKE_PREFIX_PATH or set
  "Qt5Test_DIR" to a directory containing one of the above files.  If
  "Qt5Test" provides a separate development package or SDK, be sure it has
  been installed.
Call Stack (most recent call first):
  CMakeLists.txt:15 (qt5_use_modules)


CMake Error at /usr/lib64/cmake/Qt5Core/Qt5CoreMacros.cmake:240 (message):
  Can not use "Test" module which has not yet been found.
Call Stack (most recent call first):
  CMakeLists.txt:15 (qt5_use_modules)


Configuring
Configuring incomplete, errors occurred!


      Start  2: test_wrap_cpp_and_resources
 2/18 Test  #2: test_wrap_cpp_and_resources .......   Passed    0.49 sec
      Start  3: test_dependent_modules
 3/18 Test  #3: test_dependent_modules ............   Passed    1.49 sec
      Start  4: test_add_resource_options
 4/18 Test  #4: test_add_resource_options .........   Passed    0.92 sec
      Start  5: test_wrap_cpp_options
 5/18 Test  #5: test_wrap_cpp_options .............   Passed    1.11 sec
      Start  6: test_needsquoting_dirname
 6/18 Test  #6: test_needsquoting_dirname .........   Passed    1.47 sec
      Start  7: test_platform_defs_include
 7/18 Test  #7: test_platform_defs_include ........   Passed    0.90 sec
      Start  8: test_qtmainwin_library
 8/18 Test  #8: test_qtmainwin_library ............   Passed    1.06 sec
      Start  9: test_dbus_module
 9/18 Test  #9: test_dbus_module ..................   Passed    1.72 sec
      Start 10: test_multiple_find_package
10/18 Test #10: test_multiple_find_package ........   Passed    1.03 sec
      Start 11: test_add_resources_delayed_file
11/18 Test #11: test_add_resources_delayed_file ...   Passed    1.02 sec
      Start 12: test_private_includes
12/18 Test #12: test_private_includes .............   Passed    1.05 sec
      Start 13: test_testlib_definitions
13/18 Test #13: test_testlib_definitions ..........   Passed    3.07 sec
      Start 14: test_json_plugin_includes
14/18 Test #14: test_json_plugin_includes .........   Passed    1.05 sec
      Start 15: test_testlib_no_link_gui
15/18 Test #15: test_testlib_no_link_gui ..........   Passed    1.20 sec
      Start 16: test_testlib_no_link_widgets
16/18 Test #16: test_testlib_no_link_widgets ......   Passed    1.43 sec
      Start 17: module_includes
17/18 Test #17: module_includes ...................   Passed    1.38 sec
      Start 18: test_concurrent_module
18/18 Test #18: test_concurrent_module ............   Passed    1.03 sec

94% tests passed, 1 tests failed out of 18

Total Test time (real) =  21.46 sec

The following tests FAILED:
          1 - test_use_modules_function (Failed)
Errors while running CTest

qt5-qtbase-5.0.2-1.fc18 has been submitted as an update for Fedora 18.
https://admin.fedoraproject.org/updates/FEDORA-2013-4060/qt5-qtbase-5.0.2-1.fc18

qt5-qtbase-5.0.2-1.fc17 has been submitted as an update for Fedora 17.
https://admin.fedoraproject.org/updates/FEDORA-2013-4068/qt5-qtbase-5.0.2-1.fc17

qt5-qtbase-5.0.2-1.fc19 has been submitted as an update for Fedora 19.
https://admin.fedoraproject.org/updates/qt5-qtbase-5.0.2-1.fc19

qt5-qtbase-5.0.2-3.fc19 has been submitted as an update for Fedora 19.
https://admin.fedoraproject.org/updates/qt5-qtbase-5.0.2-3.fc19

qt5-qtbase-5.0.2-2.fc18 has been pushed to the Fedora 18 stable repository.

qt5-qtbase-5.0.2-3.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.