I really don't know what is going on here, but here is what I do know. The ebuild has a hack in src_prepare to force udev even when udev isn't found. If that hack is removed, I'm able to build *but it doesn't link to udev*. eudev is installed on the system, includes are all in place, pkgconfig can find it, etc. build log looks like this: * Package: dev-qt/qtserialport-5.11.1 * Repository: gentoo * Maintainer: qt@gentoo.org * Upstream: https://bugreports.qt.io/ * USE: abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU * FEATURES: compressdebug sandbox splitdebug userpriv usersandbox * Running qt5_qmake Info: creating stash file /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/.qmake.stash Info: creating cache file /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/.qmake.cache Checking for ntddmodm... no * Running emake cd src/ && ( test -e Makefile || /usr/lib64/qt5/bin/qmake -o Makefile /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/src.pro CONFIG+=release CONFIG-=debug 'QMAKE_AR=x86_64-pc-linux-gnu-ar cqs' QMAKE_CC=x86_64-pc-linux-gnu-gcc QMAKE_LINK_C=x86_64-pc-linux-gnu-gcc QMAKE_LINK_C_SHLIB=x86_64-pc-linux-gnu-gcc QMAKE_CXX=x86_64-pc-linux-gnu-g++ QMAKE_LINK=x86_64-pc-linux-gnu-g++ QMAKE_LINK_SHLIB=x86_64-pc-linux-gnu-g++ QMAKE_OBJCOPY=x86_64-pc-linux-gnu-objcopy QMAKE_RANLIB= QMAKE_STRIP=x86_64-pc-linux-gnu-strip 'QMAKE_CFLAGS=-Os -mtune=nocona -pipe -ggdb -frecord-gcc-switches' QMAKE_CFLAGS_RELEASE= QMAKE_CFLAGS_DEBUG= 'QMAKE_CXXFLAGS=-Os -mtune=nocona -pipe -ggdb -frecord-gcc-switches' QMAKE_CXXFLAGS_RELEASE= QMAKE_CXXFLAGS_DEBUG= 'QMAKE_LFLAGS=-Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0' QMAKE_LFLAGS_RELEASE= QMAKE_LFLAGS_DEBUG= ) && make -f Makefile make[1]: Entering directory '/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src' cd serialport/ && ( test -e Makefile || /usr/lib64/qt5/bin/qmake -o Makefile /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/serialport.pro CONFIG+=release CONFIG-=debug 'QMAKE_AR=x86_64-pc-linux-gnu-ar cqs' QMAKE_CC=x86_64-pc-linux-gnu-gcc QMAKE_LINK_C=x86_64-pc-linux-gnu-gcc QMAKE_LINK_C_SHLIB=x86_64-pc-linux-gnu-gcc QMAKE_CXX=x86_64-pc-linux-gnu-g++ QMAKE_LINK=x86_64-pc-linux-gnu-g++ QMAKE_LINK_SHLIB=x86_64-pc-linux-gnu-g++ QMAKE_OBJCOPY=x86_64-pc-linux-gnu-objcopy QMAKE_RANLIB= QMAKE_STRIP=x86_64-pc-linux-gnu-strip 'QMAKE_CFLAGS=-Os -mtune=nocona -pipe -ggdb -frecord-gcc-switches' QMAKE_CFLAGS_RELEASE= QMAKE_CFLAGS_DEBUG= 'QMAKE_CXXFLAGS=-Os -mtune=nocona -pipe -ggdb -frecord-gcc-switches' QMAKE_CXXFLAGS_RELEASE= QMAKE_CXXFLAGS_DEBUG= 'QMAKE_LFLAGS=-Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0' QMAKE_LFLAGS_RELEASE= QMAKE_LFLAGS_DEBUG= ) && make -f Makefile make[2]: Entering directory '/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport' perl /usr/lib64/qt5/mkspecs/features/data/unix/findclasslist.pl < QtSerialPort.version.in > QtSerialPort.version x86_64-pc-linux-gnu-g++ -Os -mtune=nocona -pipe -ggdb -frecord-gcc-switches -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wdate-time -Wshift-overflow=2 -Wduplicated-cond -Wno-stringop-overflow -dM -E -o .moc/moc_predefs.h /usr/lib64/qt5/mkspecs/features/data/dummy.cpp x86_64-pc-linux-gnu-g++ -c -Os -mtune=nocona -pipe -ggdb -frecord-gcc-switches -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wdate-time -Wshift-overflow=2 -Wduplicated-cond -Wno-stringop-overflow -D_REENTRANT -fPIC -DLINK_LIBUDEV -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_BUILD_SERIALPORT_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_CORE_LIB -I. -I. -I../../include -I../../include/QtSerialPort -I../../include/QtSerialPort/5.11.1 -I../../include/QtSerialPort/5.11.1/QtSerialPort -isystem /usr/include/qt5/QtCore/5.11.1 -isystem /usr/include/qt5/QtCore/5.11.1/QtCore -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtCore -I.moc -I/usr/lib64/qt5/mkspecs/linux-g++ -o .obj/qserialportinfo.o qserialportinfo.cpp x86_64-pc-linux-gnu-g++ -c -Os -mtune=nocona -pipe -ggdb -frecord-gcc-switches -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wdate-time -Wshift-overflow=2 -Wduplicated-cond -Wno-stringop-overflow -D_REENTRANT -fPIC -DLINK_LIBUDEV -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_BUILD_SERIALPORT_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_CORE_LIB -I. -I. -I../../include -I../../include/QtSerialPort -I../../include/QtSerialPort/5.11.1 -I../../include/QtSerialPort/5.11.1/QtSerialPort -isystem /usr/include/qt5/QtCore/5.11.1 -isystem /usr/include/qt5/QtCore/5.11.1/QtCore -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtCore -I.moc -I/usr/lib64/qt5/mkspecs/linux-g++ -o .obj/qserialport_unix.o qserialport_unix.cpp x86_64-pc-linux-gnu-g++ -c -Os -mtune=nocona -pipe -ggdb -frecord-gcc-switches -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wdate-time -Wshift-overflow=2 -Wduplicated-cond -Wno-stringop-overflow -D_REENTRANT -fPIC -DLINK_LIBUDEV -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_BUILD_SERIALPORT_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_CORE_LIB -I. -I. -I../../include -I../../include/QtSerialPort -I../../include/QtSerialPort/5.11.1 -I../../include/QtSerialPort/5.11.1/QtSerialPort -isystem /usr/include/qt5/QtCore/5.11.1 -isystem /usr/include/qt5/QtCore/5.11.1/QtCore -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtCore -I.moc -I/usr/lib64/qt5/mkspecs/linux-g++ -o .obj/qserialportinfo_unix.o qserialportinfo_unix.cpp /usr/lib64/qt5/bin/moc -DLINK_LIBUDEV -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_BUILD_SERIALPORT_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_CORE_LIB --include .moc/moc_predefs.h -I/usr/lib64/qt5/mkspecs/linux-g++ -I/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport -I/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport -I/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/include -I/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/include/QtSerialPort -I/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/include/QtSerialPort/5.11.1 -I/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/include/QtSerialPort/5.11.1/QtSerialPort -I/usr/include/qt5/QtCore/5.11.1 -I/usr/include/qt5/QtCore/5.11.1/QtCore -I/usr/include/qt5 -I/usr/include/qt5/QtCore -I/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7 -I/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/x86_64-pc-linux-gnu -I/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/backward -I/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include -I/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include-fixed -I/usr/include qserialport.h -o .moc/moc_qserialport.cpp x86_64-pc-linux-gnu-g++ -c -Os -mtune=nocona -pipe -ggdb -frecord-gcc-switches -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wdate-time -Wshift-overflow=2 -Wduplicated-cond -Wno-stringop-overflow -D_REENTRANT -fPIC -DLINK_LIBUDEV -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_BUILD_SERIALPORT_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_CORE_LIB -I. -I. -I../../include -I../../include/QtSerialPort -I../../include/QtSerialPort/5.11.1 -I../../include/QtSerialPort/5.11.1/QtSerialPort -isystem /usr/include/qt5/QtCore/5.11.1 -isystem /usr/include/qt5/QtCore/5.11.1/QtCore -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtCore -I.moc -I/usr/lib64/qt5/mkspecs/linux-g++ -o .obj/qserialport.o qserialport.cpp rm -f libQt5SerialPort.so.5.11.1 libQt5SerialPort.so libQt5SerialPort.so.5 libQt5SerialPort.so.5.11 x86_64-pc-linux-gnu-g++ -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,--no-undefined -Wl,--version-script,QtSerialPort.version -Wl,--enable-new-dtags -shared -Wl,-Bsymbolic-functions -Wl,-soname,libQt5SerialPort.so.5 -o libQt5SerialPort.so.5.11.1 .obj/qserialport.o .obj/qserialportinfo.o .obj/qserialport_unix.o .obj/qserialportinfo_unix.o -lQt5Core -lpthread .obj/qserialportinfo_unix.o: In function `deviceProperty(udev_device*, char const*)': /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:339: undefined reference to `udev_device_get_property_value' .obj/qserialportinfo_unix.o: In function `availablePortsByUdev(bool&)': /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:392: undefined reference to `udev_new' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:398: undefined reference to `udev_enumerate_new' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:403: undefined reference to `udev_enumerate_add_match_subsystem' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:404: undefined reference to `udev_enumerate_scan_devices' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:406: undefined reference to `udev_enumerate_get_list_entry' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:416: undefined reference to `udev_list_entry_get_name' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:416: undefined reference to `udev_device_new_from_syspath' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:329: undefined reference to `udev_device_unref' .obj/qserialportinfo_unix.o: In function `deviceLocation': /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:379: undefined reference to `udev_device_get_devnode' .obj/qserialportinfo_unix.o: In function `deviceName': /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:374: undefined reference to `udev_device_get_sysname' .obj/qserialportinfo_unix.o: In function `availablePortsByUdev(bool&)': /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:426: undefined reference to `udev_device_get_parent' .obj/qserialportinfo_unix.o: In function `deviceDriver': /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:344: undefined reference to `udev_device_get_driver' .obj/qserialportinfo_unix.o: In function `availablePortsByUdev(bool&)': /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:329: undefined reference to `udev_device_unref' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:410: undefined reference to `udev_list_entry_get_next' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:321: undefined reference to `udev_enumerate_unref' /var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport/qserialportinfo_unix.cpp:313: undefined reference to `udev_unref' collect2: error: ld returned 1 exit status make[2]: *** [Makefile:92: ../../lib/libQt5SerialPort.so.5.11.1] Error 1 make[2]: Leaving directory '/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src/serialport' make[1]: *** [Makefile:45: sub-serialport-make_first] Error 2 make[1]: Leaving directory '/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1/src' make: *** [Makefile:47: sub-src-make_first] Error 2 * ERROR: dev-qt/qtserialport-5.11.1::gentoo failed (compile phase): * emake failed * * If you need support, post the output of `emerge --info '=dev-qt/qtserialport-5.11.1::gentoo'`, * the complete build log and the output of `emerge -pqv '=dev-qt/qtserialport-5.11.1::gentoo'`. * The complete build log is located at '/var/log/portage/dev-qt:qtserialport-5.11.1:20181220-194555.log.gz'. * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-qt/qtserialport-5.11.1/temp/build.log.gz'. * The ebuild environment file is located at '/var/tmp/portage/dev-qt/qtserialport-5.11.1/temp/environment'. * Working directory: '/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1' * S: '/var/tmp/portage/dev-qt/qtserialport-5.11.1/work/qtserialport-everywhere-src-5.11.1' The only difference I can see (due to the hack in src_prepare) is src/qtserialport/Makefile LIBS line is missing -ludev on the broken builds, but is there on my laptop. I think that the "fix" in src_prepare is doing the wrong thing, and more importantly doesn't fix the intended issue (currently). Whatever is causing QT to not find udev is the real problem, and hacking the ebuild to not check for udev is currently only partially fixing the issue. You can plainly see udev references in this build log, but it's missing the all important -ludev which I'm sure stems from the check being broken in the first place.
appeared recently at the tinderbox image 17.1-desktop-plasma_libressl_20190302-221911
Created attachment 568032 [details] emerge-info.txt
Created attachment 568034 [details] dev-qt:qtserialport-5.12.1:20190306-201357.log
Created attachment 568036 [details] emerge-history.txt
Created attachment 568038 [details] environment
Created attachment 568040 [details] etc.portage.tbz2
Created attachment 568042 [details] logs.tbz2
Created attachment 568044 [details] temp.tbz2
The current qtserialport requires udev unconditionally. The purpose of the sed in the is to ensure that is built independently of the Qt core installlation's udev status (dev-qt/qtgui[udev]). I suspect that build failure is occurring here due to relying on QMAKE_LIBS_LIBUDEV being automagically populated when it may not always. Could you please add the output of 'qlist dev-qt | grep gentoo | xargs grep udev'?
(In reply to Michael Palimaka (kensington) from comment #9) > Could you please add the output of 'qlist dev-qt | grep gentoo | xargs grep > udev'? For the record, it looks like this on my testing devbox: > # qlist dev-qt | grep gentoo | xargs grep --color udev > /usr/lib64/qt5/mkspecs/gentoo/qmodule-qtcore.pri:QT.global_private.enabled_features = sse2 alloca_h alloca avx2 libudev network posix_fallocate reduce_exports reduce_relocations sql system-zlib testlib xml > /usr/lib64/qt5/mkspecs/gentoo/qmodule-qtcore.pri:QMAKE_LIBS_LIBUDEV = /lib64/libudev.so The presence of these entries are very suspicious given that I do not have qtgui (which is supposed to manage Qt core udev status) installed for this test.
*** Bug 682896 has been marked as a duplicate of this bug. ***
(In reply to Michael Palimaka (kensington) from comment #9) > The current qtserialport requires udev unconditionally. The purpose of the > sed in the is to ensure that is built independently of the Qt core > installlation's udev status (dev-qt/qtgui[udev]). > > I suspect that build failure is occurring here due to relying on > QMAKE_LIBS_LIBUDEV being automagically populated when it may not always. > > Could you please add the output of 'qlist dev-qt | grep gentoo | xargs grep > udev'? With Real udev I get (qtcore-5.9.z): > [Thu-20-Jun 3:27pm] michael@ds-miche2:pts/18:2008 ~ $ qlist dev-qt | grep gentoo | xargs grep udev >/usr/lib64/qt5/mkspecs/gentoo/qmodule-qtcore.pri:QT.global_private.enabled_features = alloca_h alloca sse2 libudev network posix_fallocate qml-debug reduce_exports reduce_relocations sql system-zlib testlib xml >/usr/lib64/qt5/mkspecs/gentoo/qmodule-qtcore.pri:QMAKE_LIBS_LIBUDEV = -ludev >/usr/lib64/qt5/mkspecs/gentoo/qtgui-qconfig.pri:QCONFIG_ADD= fontconfig system-freetype system-harfbuzz system-jpeg libinput xkbcommon-evdev opengl png system-png tslib libudev xcb xcb-glx xcb-plugin xcb-render xcb-sm xcb-xlib xinput With eudev (on older qtcore-5.7.z) >[Thu-20-Jun 4:14pm] root@wannabee:20:2064 ~ # qlist dev-qt | grep gentoo | xargs grep udev >/usr/lib64/qt5/mkspecs/gentoo/qtgui-qconfig.pri:QCONFIG_ADD= fontconfig system-freetype gtk3 system-harfbuzz system-jpeg opengl png system-png libudev xcb xcb-glx xcb-plugin xcb-render xcb-sm xcb-xlib xinput2 xrender
It seems that upstream has changed the way how they pass the library: https://github.com/qt/qtbase/commit/b9a578ebc604e5f919c633ec8bee99aa8d21071d#diff-ba370d6d13d7329d2110e6509c5538a2 so instead of a usual "-ludev" they are passive a library path now. Usually, that path is detected correctly, however in the report's setup (catalist?) it must be set as "qmodule-qtcore.pri:QMAKE_LIBS_LIBUDEV = /usr/lib64/libudev.so", as per log: x86_64-pc-linux-gnu-g++ -Wl,-O1 -Wl,--as-needed -Wl,--no-undefined -Wl,--version-script,QtSerialPort.version -Wl,--enable-new-dtags -shared -Wl,-Bsymbolic-functions -Wl,-soname,libQt5SerialPort.so.5 -o libQt5SerialPort.so.5.12.1 .obj/qserialport.o .obj/qserialportinfo.o .obj/qserialport_unix.o .obj/qserialportinfo_unix.o -lQt5Core -lpthread /usr/lib64/libudev.so
Created attachment 580412 [details] dev-qt:qtserialport-5.12.4-build-success.log I wonder if this is still an issue with 5.12.4 (in overlay)? I just built qtserialport-5.12.4, with eudev, on a stable testing install and noticed no issues. (5.13 seems to be fine as well.) qlist dev-qt | grep gentoo | xargs grep udev: /usr/lib64/qt5/mkspecs/gentoo/qmodule-qtcore.pri:QT.global_private.enabled_features = sse2 alloca_h alloca avx2 libudev network posix_fallocate reduce_exports reduce_relocations sql system-zlib testlib xml /usr/lib64/qt5/mkspecs/gentoo/qmodule-qtcore.pri:QMAKE_LIBS_LIBUDEV = /usr/lib64/libudev.so /usr/lib64/qt5/mkspecs/gentoo/qtgui-qconfig.pri:QCONFIG_ADD= egl fontconfig system-freetype system-harfbuzz no-jpeg libinput xkbcommon opengl png system-png libudev xcb xcb-glx xcb-plugin xcb-render xcb-sm xcb-xlib xcb-xinput egl_x11
Please re-open if this happens again.
Still broke x86_64-pc-linux-gnu-g++ -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,--no-undefined -Wl,--version-script,QtSerialPort.version -Wl,--enable-new-dtags -shared -Wl,-Bsymbolic-functions -Wl,-soname,libQt5SerialPort.so.5 -o libQt5SerialPort.so.5.15.1 .obj/qserialport.o .obj/qserialportinfo.o .obj/qserialport_unix.o .obj/qserialportinfo_unix.o /usr/lib64/libQt5Core.so -lpthread /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: .obj/qserialportinfo_unix.o: in function `deviceProperty(udev_device*, char const*)': qserialportinfo_unix.cpp:(.text+0x213): undefined reference to `udev_device_get_property_value' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: .obj/qserialportinfo_unix.o: in function `availablePortsByUdev(bool&)': qserialportinfo_unix.cpp:(.text+0x948): undefined reference to `udev_new' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0x96c): undefined reference to `udev_enumerate_new' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0x993): undefined reference to `udev_enumerate_add_match_subsystem' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0x9a0): undefined reference to `udev_enumerate_scan_devices' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0x9a8): undefined reference to `udev_enumerate_get_list_entry' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0x9d0): undefined reference to `udev_list_entry_get_name' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0x9dd): undefined reference to `udev_device_new_from_syspath' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0xa01): undefined reference to `udev_device_unref' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0xa42): undefined reference to `udev_device_get_devnode' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0xa74): undefined reference to `udev_device_get_sysname' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0xaa6): undefined reference to `udev_device_get_parent' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0xab7): undefined reference to `udev_device_get_driver' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0xd0f): undefined reference to `udev_device_unref' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0xd17): undefined reference to `udev_list_entry_get_next' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0xd46): undefined reference to `udev_enumerate_unref' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: qserialportinfo_unix.cpp:(.text+0xd50): undefined reference to `udev_unref' collect2: error: ld returned 1 exit status
https://bugreports.qt.io/browse/QTBUG-89767
@QT team, can you come up with a workaround while we are waiting for the upstream? I see two solutions: - add qtcore[udev] requirement - ZC solution: 's/$$QMAKE_LIBS_LIBUDEV/-ludev/'
FYI, upstream fixed the issue, but I'm not sure how easy it would be to backport the patch. Fix Version/s: Qt 6.2.0 Alpha
*** Bug 804999 has been marked as a duplicate of this bug. ***
My last forked version of this ebuild is 5.15.7, so I'm going to assume the fix was backported by upstream because I've not hit the issue since 5.15.7
pls see bug 930543
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=6eb6abd03595e182f69888ed45b2537afbe144eb commit 6eb6abd03595e182f69888ed45b2537afbe144eb Author: Sam James <sam@gentoo.org> AuthorDate: 2025-04-24 08:34:10 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2025-04-24 08:34:10 +0000 dev-qt/qtserialport: substitute -ludev unconditionally Apparently sometimes QMAKE_LIBS_LIBUDEV isn't populated and it's not worth spending time to figure out why for Qt 5. Bug: https://bugs.gentoo.org/673532 Closes: https://bugs.gentoo.org/930543 Signed-off-by: Sam James <sam@gentoo.org> dev-qt/qtserialport/qtserialport-5.15.16.ebuild | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
