Public bug reported:
In impish and later, libc6-dev is missing the libdl.so symlink to the
shared library, only shipping libdl.a. Anything trying to link against
-ldl will surprisingly get static linkage.
I noticed this because it causes openems to FTBFS, because previously-
built libraries have hard-coded references to the libdl.so that causes
reverse-dependencies to fail to link:
[ 94%] Building CXX object CMakeFiles/QCSXCAD.dir/qrc_resources.cpp.o
/usr/bin/c++ -DGIT_VERSION=\"v0.6.2\" -DQCSXCAD_EXPORTS -DQT_CORE_LIB
-DQT_GUI_LIB -DQT_WIDGETS_LIB -DQT_XML_LIB -DTIXML_USE_STL
-DvtkDomainsChemistry_AUTOINIT="1(vtkDomainsChemistryOpenGL2)"
-DvtkFiltersCore_AUTOINIT="1(vtkFiltersParallelDIY2)"
-DvtkFiltersFlowPaths_AUTOINIT="1(vtkFiltersParallelFlowPaths)"
-DvtkIOExodus_AUTOINIT="1(vtkIOParallelExodus)"
-DvtkIOGeometry_AUTOINIT="1(vtkIOMPIParallel)"
-DvtkIOImage_AUTOINIT="1(vtkIOMPIImage)"
-DvtkIOParallel_AUTOINIT="1(vtkIOMPIParallel)"
-DvtkIOSQL_AUTOINIT="2(vtkIOMySQL,vtkIOPostgreSQL)"
-DvtkRenderingContext2D_AUTOINIT="1(vtkRenderingContextOpenGL2)"
-DvtkRenderingCore_AUTOINIT="3(vtkInteractionStyle,vtkRenderingFreeType,vtkRenderingOpenGL2)"
-DvtkRenderingFreeType_AUTOINIT="2(vtkRenderingFreeTypeFontConfig,vtkRenderingMatplotlib)"
-DvtkRenderingLICOpenGL2_AUTOINIT="1(vtkRenderingParallelLIC)"
-DvtkRenderingOpenGL2_AUTOINIT="1(vtkRenderingGL2PSOpenGL2)"
-DvtkRenderingVolume_AUTOINIT="1(vtkRenderingVolumeOpenGL2)"
-I/<<BUILDDIR>>/openems-0.0.35+git20190103.6a75e98+dfsg.1/QCSXCAD/build/QCSXCAD_autogen/include
-I/<<BUILDDIR>>/openems-0.0.35+git20190103.6a75e98+dfsg.1/debian/tmp/usr/include/CSXCAD
-I/usr/include/vtk-7.1 -I/usr/include/freetype2
-I/usr/lib/x86_64-linux-gnu/openmpi/include/openmpi
-I/usr/lib/x86_64-linux-gnu/openmpi/include -I/usr/include/python3.9
-I/usr/include/hdf5/openmpi -I/usr/include/jsoncpp -I/usr/include/libxml2
-I/usr/include/tcl -isystem /usr/include/x86_64-linux-gnu/qt5 -isystem
/usr/include/x86_64-linux-gnu/qt5/QtWidgets -isystem
/usr/include/x86_64-linux-gnu/qt5/QtGui -isystem
/usr/include/x86_64-linux-gnu/qt5/QtCore -isystem
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -isystem
/usr/include/x86_64-linux-gnu/qt5/QtXml -g -fPIC -fPIC -MD -MT
CMakeFiles/QCSXCAD.dir/qrc_resources.cpp.o -MF
CMakeFiles/QCSXCAD.dir/qrc_resources.cpp.o.d -o
CMakeFiles/QCSXCAD.dir/qrc_resources.cpp.o -c
/<<BUILDDIR>>/openems-0.0.35+git20190103.6a75e98+dfsg.1/QCSXCAD/build/qrc_resources.cpp
make[4]: *** No rule to make target '/usr/lib/x86_64-linux-gnu/libdl.so',
needed by 'libQCSXCAD.so.0.6.2'. Stop.
** Affects: glibc (Ubuntu)
Importance: High
Status: New
** Affects: glibc (Ubuntu Impish)
Importance: High
Status: New
** Affects: glibc (Ubuntu Jammy)
Importance: High
Status: New
** Tags: fr-1870
** Changed in: glibc (Ubuntu)
Importance: Undecided => High
** Also affects: glibc (Ubuntu Impish)
Importance: Undecided
Status: New
** Also affects: glibc (Ubuntu Jammy)
Importance: High
Status: New
** Changed in: glibc (Ubuntu Impish)
Importance: Undecided => High
** Tags added: fr-1870
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https://bugs.launchpad.net/bugs/1951340
Title:
libdl.so missing in impish and jammy
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