358381 – mingw Qt5: build failures via static plugins

Bug 358381 - mingw Qt5: build failures via static plugins

Summary: mingw Qt5: build failures via static plugins

Status:	RESOLVED NOT A BUG

Alias:	None

Product:	trojita
Classification:	Applications
Component:	Other (other bugs)
Version First Reported In:	git
Platform:	Other Linux

Importance:	NOR normal
Target Milestone:	---
Assignee:	Trojita default assignee

URL:
Keywords:

Depends on:
Blocks:

Reported:	2016-01-22 18:12 UTC by Jan Kundrát
Modified:	2016-01-23 11:03 UTC (History)
CC List:	0 users

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

Attachments
Add an attachment

Note You need to log in before you can comment on or make changes to this bug.

Description Jan Kundrát 2016-01-22 18:12:26 UTC

This happens on an EL7 box with Qt5 and mingw from EPEL:

Linking CXX executable be.contacts.exe
/usr/bin/cmake -E cmake_link_script CMakeFiles/be.contacts.dir/link.txt --verbose=1
/usr/bin/cmake -E remove -f CMakeFiles/be.contacts.dir/objects.a
/usr/bin/i686-w64-mingw32-ar cr CMakeFiles/be.contacts.dir/objects.a @CMakeFiles/be.contacts.dir/objects1.rsp
/usr/bin/i686-w64-mingw32-g++  -Wall -Wsign-compare -O2  -std=c++11 -O3 -DNDEBUG    -mwindows -Wl,--whole-archive CMakeFiles/be.contacts.dir/objects.a -Wl,--no-whole-archive  -o be.contacts.exe -Wl,--out-implib,libbe.contacts.dll.a -Wl,--major-image-version,0,--minor-image-version,0  libtrojita_plugins.dll.a trojita_plugin_AbookAddressbookPlugin.a /usr/i686-w64-mingw32/sys-root/mingw/lib/libQt5Widgets.dll.a libtrojita_plugins.dll.a /usr/i686-w64-mingw32/sys-root/mingw/lib/libQt5Gui.dll.a /usr/i686-w64-mingw32/sys-root/mingw/lib/libQt5Core.dll.a /usr/i686-w64-mingw32/sys-root/mingw/lib/libqt5main.a -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32 
CMakeFiles/be.contacts.dir/objects.a(main.cpp.obj):main.cpp:(.text.startup+0x4): undefined reference to `qt_static_plugin_trojita_plugin_AbookAddressbookPlugin()'

cmake is invoked as `cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_SKIP_RPATH:BOOL=ON -DCMAKE_TOOLCHAIN_FILE=/usr/share/mingw/toolchain-mingw32.cmake -DWITH_TESTS=OFF -DQT_QMAKE_EXECUTABLE=/bin/i686-w64-mingw32-qmake-qt5 -DWITH_NSIS=OFF -DOPENSSL_DLL_LIBRARIES='libssl-10.dll;libcrypto-10.dll' ..`.

If I pass -DWITH_ABOOKADDRESSBOOK_PLUGIN=ON -DWITH_CLEARTEXT_PLUGIN=ON , then stuff builds, but I apparently don't know where to put these plugins, so I get an immediate crash in be.contacts.exe, and no plugins in trojita.exe. Tried using cwd as well as ./plugins/, as suggested in the docs.

Comment 1 Thomas Lübking 2016-01-22 23:30:02 UTC

Do you have "-DQT_STATICPLUGIN" on building src/Plugins/AbookAddressbook/main.cpp?
(The next question would be whether it makes its path down)

Comment 2 Jan Kundrát 2016-01-22 23:51:51 UTC

> Do you have "-DQT_STATICPLUGIN" on building
> src/Plugins/AbookAddressbook/main.cpp?

I think that yeah:

[turbo-hipster@ci-el7-big-1 build]$ rm 
trojita_plugin_AbookAddressbookPlugin.a 
CMakeFiles/be.contacts.dir/src/Plugins/AbookAddressbook/main.cpp.obj

Now some garbage, just for completeness, feel free to not read this:

[turbo-hipster@ci-el7-big-1 build]$ make VERBOSE=1 be.contacts
/usr/bin/cmake -H/home/turbo-hipster/pwn-trojita/trojita 
-B/home/turbo-hipster/pwn-trojita/trojita/build --check-build-system 
CMakeFiles/Makefile.cmake 0
make -f CMakeFiles/Makefile2 be.contacts
make[1]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -H/home/turbo-hipster/pwn-trojita/trojita 
-B/home/turbo-hipster/pwn-trojita/trojita/build --check-build-system 
CMakeFiles/Makefile.cmake 0
/usr/bin/cmake -E cmake_progress_start 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles 7
make -f CMakeFiles/Makefile2 CMakeFiles/be.contacts.dir/all
make[2]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make -f CMakeFiles/be.contacts_automoc.dir/build.make 
CMakeFiles/be.contacts_automoc.dir/depend
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
cd /home/turbo-hipster/pwn-trojita/trojita/build && /usr/bin/cmake -E 
cmake_depends "Unix Makefiles" /home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles/be.contacts_automoc.dir/DependInfo.cmake 
--color=
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make -f CMakeFiles/be.contacts_automoc.dir/build.make 
CMakeFiles/be.contacts_automoc.dir/build
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -E cmake_progress_report 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles 
[  0%] Automoc for target be.contacts
/usr/bin/cmake -E cmake_automoc 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles/be.contacts_automoc.dir/
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AbookAddressbook/main.cpp
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -E cmake_progress_report 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles 
[  0%] Built target be.contacts_automoc
make -f CMakeFiles/Plugins_automoc.dir/build.make 
CMakeFiles/Plugins_automoc.dir/depend
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
cd /home/turbo-hipster/pwn-trojita/trojita/build && /usr/bin/cmake -E 
cmake_depends "Unix Makefiles" /home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles/Plugins_automoc.dir/DependInfo.cmake 
--color=
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make -f CMakeFiles/Plugins_automoc.dir/build.make 
CMakeFiles/Plugins_automoc.dir/build
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -E cmake_progress_report 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles 
[  0%] Automoc for target Plugins
/usr/bin/cmake -E cmake_automoc 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles/Plugins_automoc.dir/
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AddressbookPlugin.cpp
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/PasswordPlugin.cpp
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/PluginJob.cpp
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/PluginManager.cpp
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AddressbookPlugin.h
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/PasswordPlugin.h
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/PluginJob.h
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/PluginManager.h
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -E cmake_progress_report 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles 
[  0%] Built target Plugins_automoc
make -f CMakeFiles/Plugins.dir/build.make CMakeFiles/Plugins.dir/depend
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
cd /home/turbo-hipster/pwn-trojita/trojita/build && /usr/bin/cmake -E 
cmake_depends "Unix Makefiles" /home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles/Plugins.dir/DependInfo.cmake 
--color=
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make -f CMakeFiles/Plugins.dir/build.make CMakeFiles/Plugins.dir/build
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make[3]: Nothing to be done for `CMakeFiles/Plugins.dir/build'.
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -E cmake_progress_report 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles  81 82 83
[ 42%] Built target Plugins
make -f 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin_automoc.dir/build.make 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin_automoc.dir/depend
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
cd /home/turbo-hipster/pwn-trojita/trojita/build && /usr/bin/cmake -E 
cmake_depends "Unix Makefiles" /home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles/trojita_plugin_AbookAddressbookPlugin_automoc.dir/DependInfo.cmake 
--color=
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make -f 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin_automoc.dir/build.make 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin_automoc.dir/build
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -E cmake_progress_report 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles 98
[ 57%] Automoc for target trojita_plugin_AbookAddressbookPlugin
/usr/bin/cmake -E cmake_automoc 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles/trojita_plugin_AbookAddressbookPlugin_automoc.dir/
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AbookAddressbook/AbookAddressbook.cpp
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AbookAddressbook/be-contacts.cpp
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AbookAddressbook/AbookAddressbook.h
AUTOMOC: Checking 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AbookAddressbook/be-contacts.h
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -E cmake_progress_report 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles  98
[ 57%] Built target trojita_plugin_AbookAddressbookPlugin_automoc
make -f CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/build.make 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/depend
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
cd /home/turbo-hipster/pwn-trojita/trojita/build && /usr/bin/cmake -E 
cmake_depends "Unix Makefiles" /home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/DependInfo.cmake 
--color=
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make -f CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/build.make 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/build
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
Linking CXX static library trojita_plugin_AbookAddressbookPlugin.a
/usr/bin/cmake -P 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/cmake_clean_target.cmake
/usr/bin/cmake -E cmake_link_script 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/link.txt --verbose=1
/usr/bin/i686-w64-mingw32-ar cr trojita_plugin_AbookAddressbookPlugin.a  
CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/src/Plugins/AbookAddressbook/AbookAddressbook.cpp.obj 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/src/Plugins/AbookAddressbook/be-contacts.cpp.obj 
CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/trojita_plugin_AbookAddressbookPlugin_automoc.cpp.obj
/usr/bin/i686-w64-mingw32-ranlib trojita_plugin_AbookAddressbookPlugin.a
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -E cmake_progress_report 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles  96 97
[ 85%] Built target trojita_plugin_AbookAddressbookPlugin
make -f CMakeFiles/be.contacts.dir/build.make 
CMakeFiles/be.contacts.dir/depend
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
cd /home/turbo-hipster/pwn-trojita/trojita/build && /usr/bin/cmake -E 
cmake_depends "Unix Makefiles" /home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles/be.contacts.dir/DependInfo.cmake 
--color=
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make -f CMakeFiles/be.contacts.dir/build.make 
CMakeFiles/be.contacts.dir/build
make[3]: Entering directory `/home/turbo-hipster/pwn-trojita/trojita/build'
/usr/bin/cmake -E cmake_progress_report 
/home/turbo-hipster/pwn-trojita/trojita/build/CMakeFiles 


Here we go:

[ 85%] Building CXX object 
CMakeFiles/be.contacts.dir/src/Plugins/AbookAddressbook/main.cpp.obj
/usr/bin/i686-w64-mingw32-g++   -DQT_CORE_LIB -DQT_GUI_LIB 
-DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG 
-DQT_STATICPLUGIN -DQT_STRICT_ITERATORS -DQT_USE_FAST_CONCATENATION 
-DQT_USE_FAST_OPERATOR_PLUS -DQT_USE_QSTRINGBUILDER -DQT_WIDGETS_LIB -Wall 
-Wsign-compare -O2  -std=c++11 -O3 -DNDEBUG 
@CMakeFiles/be.contacts.dir/includes_CXX.rsp   -o 
CMakeFiles/be.contacts.dir/src/Plugins/AbookAddressbook/main.cpp.obj -c 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AbookAddressbook/main.cpp

Sounds legit, but doesn't help.

Linking CXX executable be.contacts.exe
/usr/bin/cmake -E cmake_link_script CMakeFiles/be.contacts.dir/link.txt 
--verbose=1
/usr/bin/cmake -E remove -f CMakeFiles/be.contacts.dir/objects.a
/usr/bin/i686-w64-mingw32-ar cr CMakeFiles/be.contacts.dir/objects.a 
@CMakeFiles/be.contacts.dir/objects1.rsp
/usr/bin/i686-w64-mingw32-g++  -Wall -Wsign-compare -O2  -std=c++11 -O3 
-DNDEBUG    -mwindows -Wl,--whole-archive 
CMakeFiles/be.contacts.dir/objects.a -Wl,--no-whole-archive  -o 
be.contacts.exe -Wl,--out-implib,libbe.contacts.dll.a 
-Wl,--major-image-version,0,--minor-image-version,0  
libtrojita_plugins.dll.a trojita_plugin_AbookAddressbookPlugin.a 
/usr/i686-w64-mingw32/sys-root/mingw/lib/libQt5Widgets.dll.a 
libtrojita_plugins.dll.a 
/usr/i686-w64-mingw32/sys-root/mingw/lib/libQt5Gui.dll.a 
/usr/i686-w64-mingw32/sys-root/mingw/lib/libQt5Core.dll.a 
/usr/i686-w64-mingw32/sys-root/mingw/lib/libqt5main.a -lkernel32 -luser32 
-lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 
-ladvapi32 
CMakeFiles/be.contacts.dir/objects.a(main.cpp.obj):main.cpp:(.text.startup+0x4): 
undefined reference to 
`qt_static_plugin_trojita_plugin_AbookAddressbookPlugin()'
collect2: error: ld returned 1 exit status
make[3]: *** [be.contacts.exe] Error 1
make[3]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make[2]: *** [CMakeFiles/be.contacts.dir/all] Error 2
make[2]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make[1]: *** [CMakeFiles/be.contacts.dir/rule] Error 2
make[1]: Leaving directory `/home/turbo-hipster/pwn-trojita/trojita/build'
make: *** [be.contacts] Error 2

> (The next question would be whether it makes its path down)

What do you mean?

Comment 3 Thomas Lübking 2016-01-23 01:08:37 UTC

It's supposed to be defined in trojita_plugin_AbookAddressbookPlugin.a, assuming there's no dynamic variant flying around and falsely being picked by the compiler:

   readelf -sW trojita_plugin_AbookAddressbookPlugin.a | grep trojita_plugin

(just that this is probably no ELF file? ;-)

Comment 4 Jan Kundrát 2016-01-23 01:41:44 UTC

Comparing outputs of objdump on a native Linux system and on this mingw 
cross compilation, I'm getting some qt_static_plugin_* symbols in my Linux' 
./CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/trojita_plugin_AbookAddressbookPlugin_automoc.cpp.o, 
but when I take a look at mingw' 
./CMakeFiles/trojita_plugin_AbookAddressbookPlugin.dir/trojita_plugin_AbookAddressbookPlugin_automoc.cpp.obj, 
there's nothing like that.

Going further, the moc_AbookAddressbook.cpp on the broken mingw build 
indeed doesn't contain stuff like QT_PLUGIN_METADATA_SECTION or 
QT_MOC_EXPORT_PLUGIN. This is super-weird, given that it's invoked like 
this:

Generating moc_AbookAddressbook.cpp
/usr/i686-w64-mingw32/bin/qt5/moc 
-I/home/turbo-hipster/pwn-trojita/trojita/src 
-I/home/turbo-hipster/pwn-trojita/trojita/build 
-I/usr/i686-w64-mingw32/sys-root/mingw/include 
-I/usr/i686-w64-mingw32/sys-root/mingw/include/qt5 
-I/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtCore 
-I/usr/i686-w64-mingw32/sys-root/mingw/share/qt5/mkspecs/win32-g++ 
-I/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtWidgets 
-I/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtGui -DQT_STATICPLUGIN 
-DBUILD_PLUGIN -DQT_CORE_LIB -DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII 
-DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_CORE_LIB -DQT_NO_DEBUG 
-DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_STRICT_ITERATORS -DQT_USE_QSTRINGBUILDER 
-DQT_USE_FAST_OPERATOR_PLUS -DQT_USE_FAST_CONCATENATION -o 
/home/turbo-hipster/pwn-trojita/trojita/build/moc_AbookAddressbook.cpp 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AbookAddressbook/AbookAddressbook.h

More weird things -- stuff starts working once again when I remove this 
from the moc's invocation:

  -I/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtCore

So, in other words, the following invocation of moc actually produces a 
usable result:

/usr/i686-w64-mingw32/bin/qt5/moc 
-I/home/turbo-hipster/pwn-trojita/trojita/src 
-I/home/turbo-hipster/pwn-trojita/trojita/build 
-I/usr/i686-w64-mingw32/sys-root/mingw/include 
-I/usr/i686-w64-mingw32/sys-root/mingw/include/qt5 
-I/usr/i686-w64-mingw32/sys-root/mingw/share/qt5/mkspecs/win32-g++ 
-I/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtWidgets 
-I/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtGui -DQT_STATICPLUGIN 
-DBUILD_PLUGIN -DQT_CORE_LIB -DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII 
-DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_CORE_LIB -DQT_NO_DEBUG 
-DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_STRICT_ITERATORS -DQT_USE_QSTRINGBUILDER 
-DQT_USE_FAST_OPERATOR_PLUS -DQT_USE_FAST_CONCATENATION -o 
mgw-without-mgwqt5core 
/home/turbo-hipster/pwn-trojita/trojita/src/Plugins/AbookAddressbook/AbookAddressbook.h

I double-checked this; if I leave that path in the moc's invocation, the 
resulting .cpp doesn't contain the static plugin data. When I kill it, the 
static plugin data are there.

Time to sleep, I guess, because this doesn't make any sense.

Comment 5 Thomas Lübking 2016-01-23 10:44:41 UTC

/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtCore/qplugin.h defines QT_MOC_EXPORT_PLUGIN depending on QT_STATICPLUGIN definition.

I assume this happens in some other path (qt5/mkspecs/win32-g++ , include/qt5/QtWidgets , /include/qt5/QtGui) as well, but "corrected" (some windows speciality or similar) which is shadowed by the qplugin.h in QtCore.

Alternatively "some" header in include/qt5/QtCore undefines QT_STATICPLUGIN (it should only show up in qplugin.h)

Comment 6 Jan Kundrát 2016-01-23 11:03:11 UTC

So this was actually caused by the Qt4 installation. Hint:

[turbo-hipster@ci-el7-big-1 ~]$ grep -R QT_STATICPLUGIN /usr/i686-w64-mingw32/sys-root/mingw/include
/usr/i686-w64-mingw32/sys-root/mingw/include/Qt/qplugin.h:#if defined(QT_STATICPLUGIN)
/usr/i686-w64-mingw32/sys-root/mingw/include/QtCore/qplugin.h:#if defined(QT_STATICPLUGIN)
/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtCore/qplugin.h:#if defined(QT_STATICPLUGIN)
[turbo-hipster@ci-el7-big-1 ~]$ rpm -qf /usr/i686-w64-mingw32/sys-root/mingw/include/Qt/qplugin.h
mingw32-qt-4.8.6-8.el7.noarch

Removing that package fixed the build problem.