Hi David! The issue exists on sparc64 as well [1] and I'm not quite sure why it does not seem to affect the release architectures:
make[2]: Entering directory '/<<PKGBUILDDIR>>/Python/build-3.11/cfgtest_Qsci' sparc64-linux-gnu-g++ -c -pipe -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. \ -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time \ -D_FORTIFY_SOURCE=2 -O2 -Wall -Wextra -D_REENTRANT -fPIC -DQSCINTILLA_DLL \ -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB \ -I. -I../../../QSciQt5 -I/usr/include/sparc64-linux-gnu/qt5 \ -I/usr/include/sparc64-linux-gnu/qt5/QtPrintSupport -I/usr/include/sparc64-linux-gnu/qt5/QtWidgets \ -I/usr/include/sparc64-linux-gnu/qt5/QtGui -I/usr/include/sparc64-linux-gnu/qt5/QtCore -I. \ -I/usr/lib/sparc64-linux-gnu/qt5/mkspecs/linux-g++ -o cfgtest_Qsci.o ../../config-tests/cfgtest_Qsci.cpp sparc64-linux-gnu-g++ -Wl,-z,relro -Wl,-O1 -o Qsci cfgtest_Qsci.o \ -L../../../QSciQt5 -L/usr/lib/sparc64-linux-gnu -lqscintilla2_qt5 /usr/lib/sparc64-linux-gnu/libQt5PrintSupport.so \ /usr/lib/sparc64-linux-gnu/libQt5Widgets.so /usr/lib/sparc64-linux-gnu/libQt5Gui.so \ /usr/lib/sparc64-linux-gnu/libQt5Core.so -lGL -lpthread make[2]: Leaving directory '/<<PKGBUILDDIR>>/Python/build-3.11/cfgtest_Qsci' /<<PKGBUILDDIR>>/Python/build-3.11/cfgtest_Qsci/./Qsci /<<PKGBUILDDIR>>/Python/build-3.11/cfgtest_Qsci/cfgtest_Qsci.out sip-build: '/<<PKGBUILDDIR>>/Python/build-3.11/cfgtest_Qsci/./Qsci' didn't create any output /<<PKGBUILDDIR>>/Python/build-3.11/cfgtest_Qsci/./Qsci: error while loading shared libraries: libqscintilla2_qt5.so.15: \ cannot open shared object file: No such file or directory Might be a race condition. Adrian > [1] > https://buildd.debian.org/status/fetch.php?pkg=qscintilla2&arch=sparc64&ver=2.14.1%2Bdfsg-1&stamp=1701131767&raw=0 -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer `. `' Physicist `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913