bug#67608: qtbase fails to build on i686

[John Kehayias via Bug reports for GNU Guix <bug-guix@gnu.org>]

Hi Maxim,

On Sun, Dec 03, 2023 at 01:32 PM, Maxim Cournoyer wrote:

> Hi,
>
> After recent mesa/xorg upgrades, qtbase fails to build on i686, per
> <https://ci.guix.gnu.org/build/2700964/details>.

I saw this when I was working on the mesa-updates branch, but I didn't
think it was a new failure. I looked back just now and even going to
July or further back I don't see any successful builds of qtbase-6.*
on i686-linux. The most recent version has the same failures as this
log, pre-mesa-updates. Looked like a previous version of qtbase-6 had
a different failure though.

>
> [ 59%] Building CXX object src/gui/CMakeFiles/Gui.dir/text/freetype/qfreetypefontdatabase.cpp.o
> cd /tmp/guix-build-qtbase-6.5.2.drv-0/build/src/gui && /gnu/store/isbd8adggnzdprcd7fxxlck2f5iqamg5-gcc-11.3.0/bin/c++ -DENABLE_PIXMAN_DRAWHELPERS -DGui_EXPORTS -DQT_ASCII_CAST_WARNINGS -DQT_BUILDING_QT -DQT_BUILD_GUI_LIB -DQT_CORE_LIB -DQT_DBUS_LIB -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_UP_TO=0x050000 -DQT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH -DQT_LEAN_HEADERS=1 -DQT_MOC_COMPAT -DQT_NO_AS_CONST=1 -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_EXCEPTIONS -DQT_NO_FOREACH -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_USING_NAMESPACE -DQT_QPA_DEFAULT_PLATFORM_NAME=\"xcb\" -DQT_USE_QSTRINGBUILDER -DQT_WARN_DEPRECATED_UP_TO=0x070000 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/src/gui/Gui_autogen/include -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtGui -I/tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/src/gui -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/src/gui -I/tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/src/gui/../3rdparty/VulkanMemoryAllocator -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtGui/6.5.2 -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtGui/6.5.2/QtGui -I/gnu/store/nq8q5cnzhymc79c09z3a90qhg9l9aiy5-at-spi2-core-2.45.90/include/at-spi-2.0 -I/gnu/store/gc967whfn0l9h11k3smzvd32i1w9dvw9-dbus-1.14.0/include/dbus-1.0 -I/gnu/store/gc967whfn0l9h11k3smzvd32i1w9dvw9-dbus-1.14.0/lib/dbus-1.0/include -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtCore -I/tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/mkspecs/linux-g++ -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/src/corelib -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtCore/6.5.2 -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtCore/6.5.2/QtCore -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtDBus -isystem /gnu/store/3zs0f4vcbfl2f89jk90x6gpy6wjapv1n-glib-2.72.3/include/glib-2.0 -isystem /gnu/store/3zs0f4vcbfl2f89jk90x6gpy6wjapv1n-glib-2.72.3/lib/glib-2.0/include -isystem /gnu/store/wjzil5rwysjdgldg48lvy3m93fnffpzv-freetype-2.13.0/include/freetype2 -isystem /gnu/store/g4scmdws4ax4343k5cxj6bz8v86r3b6a-harfbuzz-5.3.1/include/harfbuzz -isystem /gnu/store/s5n48zg43qdqb4qinbngzbcsg0nkw52q-libpng-1.6.37/include/libpng16 -g -DNDEBUG -O3 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -fno-exceptions -fPIC -Wsuggest-override -std=c++17 -MD -MT src/gui/CMakeFiles/Gui.dir/text/freetype/qfreetypefontdatabase.cpp.o -MF CMakeFiles/Gui.dir/text/freetype/qfreetypefontdatabase.cpp.o.d -o CMakeFiles/Gui.dir/text/freetype/qfreetypefontdatabase.cpp.o -c /tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/src/gui/text/freetype/qfreetypefontdatabase.cpp
> /tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/src/gui/painting/qdrawhelper_avx2.cpp: In function ‘const QRgba64* fetchRGBA64ToRGBA64PM_avx2(QRgba64*, const uchar*, int, int, const QList<unsigned int>*, QDitherInfo*)’:
> /tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/src/gui/painting/qdrawhelper_avx2.cpp:1353:33: error: could not convert ‘vs’ from ‘__m128i’ to ‘QRgba64’
>  1353 |         vs = multiplyAlpha65535(vs, va);
>       |                                 ^~
>       |                                 |
>       |                                 __m128i
> [ 59%] Building CXX object src/gui/CMakeFiles/Gui.dir/text/unix/qfontconfigdatabase.cpp.o
> cd /tmp/guix-build-qtbase-6.5.2.drv-0/build/src/gui && /gnu/store/isbd8adggnzdprcd7fxxlck2f5iqamg5-gcc-11.3.0/bin/c++ -DENABLE_PIXMAN_DRAWHELPERS -DGui_EXPORTS -DQT_ASCII_CAST_WARNINGS -DQT_BUILDING_QT -DQT_BUILD_GUI_LIB -DQT_CORE_LIB -DQT_DBUS_LIB -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_UP_TO=0x050000 -DQT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH -DQT_LEAN_HEADERS=1 -DQT_MOC_COMPAT -DQT_NO_AS_CONST=1 -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_EXCEPTIONS -DQT_NO_FOREACH -DQT_NO_JAVA_STYLE_ITERATORS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_USING_NAMESPACE -DQT_QPA_DEFAULT_PLATFORM_NAME=\"xcb\" -DQT_USE_QSTRINGBUILDER -DQT_WARN_DEPRECATED_UP_TO=0x070000 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/src/gui/Gui_autogen/include -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtGui -I/tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/src/gui -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/src/gui -I/tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/src/gui/../3rdparty/VulkanMemoryAllocator -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtGui/6.5.2 -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtGui/6.5.2/QtGui -I/gnu/store/nq8q5cnzhymc79c09z3a90qhg9l9aiy5-at-spi2-core-2.45.90/include/at-spi-2.0 -I/gnu/store/gc967whfn0l9h11k3smzvd32i1w9dvw9-dbus-1.14.0/include/dbus-1.0 -I/gnu/store/gc967whfn0l9h11k3smzvd32i1w9dvw9-dbus-1.14.0/lib/dbus-1.0/include -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtCore -I/tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/mkspecs/linux-g++ -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/src/corelib -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtCore/6.5.2 -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtCore/6.5.2/QtCore -I/tmp/guix-build-qtbase-6.5.2.drv-0/build/include/QtDBus -isystem /gnu/store/3zs0f4vcbfl2f89jk90x6gpy6wjapv1n-glib-2.72.3/include/glib-2.0 -isystem /gnu/store/3zs0f4vcbfl2f89jk90x6gpy6wjapv1n-glib-2.72.3/lib/glib-2.0/include -isystem /gnu/store/wjzil5rwysjdgldg48lvy3m93fnffpzv-freetype-2.13.0/include/freetype2 -isystem /gnu/store/g4scmdws4ax4343k5cxj6bz8v86r3b6a-harfbuzz-5.3.1/include/harfbuzz -isystem /gnu/store/s5n48zg43qdqb4qinbngzbcsg0nkw52q-libpng-1.6.37/include/libpng16 -g -DNDEBUG -O3 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -fno-exceptions -fPIC -Wsuggest-override -std=c++17 -MD -MT src/gui/CMakeFiles/Gui.dir/text/unix/qfontconfigdatabase.cpp.o -MF CMakeFiles/Gui.dir/text/unix/qfontconfigdatabase.cpp.o.d -o CMakeFiles/Gui.dir/text/unix/qfontconfigdatabase.cpp.o -c /tmp/guix-build-qtbase-6.5.2.drv-0/qtbase-everywhere-src-6.5.2/src/gui/text/unix/qfontconfigdatabase.cpp
> make[2]: *** [src/gui/CMakeFiles/Gui.dir/build.make:3093: src/gui/CMakeFiles/Gui.dir/painting/qdrawhelper_avx2.cpp.o] Error 1
> make[2]: *** Waiting for unfinished jobs....
> make[2]: Leaving directory '/tmp/guix-build-qtbase-6.5.2.drv-0/build'
> make[1]: *** [CMakeFiles/Makefile2:21588: src/gui/CMakeFiles/Gui.dir/all] Error 2
> make[1]: Leaving directory '/tmp/guix-build-qtbase-6.5.2.drv-0/build'
> make: *** [Makefile:149: all] Error 2
> error: in phase 'build': uncaught exception:
> %exception #<&invoke-error program: "make" arguments: ("-j" "16") exit-status: 2 term-signal: #f stop-signal: #f>
> phase `build' failed after 578.8 seconds
> command "make" "-j" "16" failed with status 2
> builder for `/gnu/store/rja0mdhh29hl3rr5mk9xa2mq55x3g0ja-qtbase-6.5.2.drv' failed with exit code 1
> @ build-failed /gnu/store/rja0mdhh29hl3rr5mk9xa2mq55x3g0ja-qtbase-6.5.2.drv - 1 builder for `/gnu/store/rja0mdhh29hl3rr5mk9xa2mq55x3g0ja-qtbase-6.5.2.drv' failed with exit code 1
>
> CC'ing John in case they'd have a clue as to what this may be caused by.

As for the actual cause, I don't have a clue. There was a failure
cause by an update on that branch, which I had fixed in
aee3c5a894fddf88810f18fa8880b423b078b3fa (from libxkbcommon update).

Was there a version of qtbase-6 that builds on i686?

John