Created attachment 287403 [details] Output of emerge --info Upgrading libpng to version 1.5.4 introduced some problems when trying to recompile applications built against libpng14. As instructed, I tried to rebuild them using the following command : # revdep-rebuild --library '/usr/lib64/libpng14.so.14' but some of the applications failed to compile. The error I got if from the linker which tries to link against libpng14 (this example is pulled after trying to rebuild dia): libtool: link: x86_64-pc-linux-gnu-gcc -shared -fPIC -DPIC .libs/diagramdata.o .libs/layer.o .libs/geometry.o .libs/color.o .libs/dia_xml.o .libs/attributes.o .libs/text.o .libs/textline.o .libs/font.o .libs/group.o .libs/utils.o .libs/arrows.o .libs/message.o .libs/focus.o .libs/sheet.o .libs/connectionpoint.o .libs/object.o .libs/object_defaults.o .libs/connection.o .libs/orth_conn.o .libs/neworth_conn.o .libs/poly_conn.o .libs/bezier_conn.o .libs/element.o .libs/polyshape.o .libs/beziershape.o .libs/objchange.o .libs/dialogs.o .libs/widgets.o .libs/units.o .libs/dia_image.o .libs/intl.o .libs/filter.o .libs/connpoint_line.o .libs/properties.o .libs/propdesc.o .libs/proplist.o .libs/propoffsets.o .libs/propobject.o .libs/prop_basic.o .libs/prop_dict.o .libs/prop_inttypes.o .libs/prop_geomtypes.o .libs/prop_attr.o .libs/prop_text.o .libs/prop_widgets.o .libs/prop_sdarray.o .libs/propdialogs.o .libs/propregistry.o .libs/dia_dirs.o .libs/plug-ins.o .libs/paper.o .libs/boundingbox.o .libs/dynamic_obj.o .libs/create.o .libs/diatransform.o .libs/diarenderer.o .libs/diainteractiverenderer.o .libs/diagdkrenderer.o .libs/diasvgrenderer.o .libs/dia_svg.o .libs/autoroute.o .libs/parent.o .libs/render_pixmap.o .libs/diaarrowchooser.o .libs/dialinechooser.o .libs/persistence.o .libs/diaerror.o .libs/diamarshal.o .libs/debug.o .libs/prefs.o .libs/newgroup.o .libs/dialib.o .libs/diacellrendererproperty.o /usr/lib64/libgnomeui-2.so -L/usr/lib64 -L/usr/lib64/qt4 /usr/lib64/libgnome-keyring.so /usr/lib64/libSM.so -luuid /usr/lib64/libICE.so -lbonoboui-2 /usr/lib64/libgnutls.so /usr/lib64/libtasn1.so /usr/lib64/libgcrypt.so /usr/lib64/libgpg-error.so /usr/lib64/libgnomecanvas-2.so -lgailutil -lXi -lXrandr -lXcursor -lXcomposite /usr/lib64/libXdamage.so -lXext /usr/lib64/libXfixes.so -lxcb-render-util -lpixman-1 -lpng14 /usr/lib64/libxcb-shm.so /usr/lib64/libxcb-render.so /usr/lib64/libXrender.so -lexpat -lX11 -lEGL -lQtGui -lQtCore /usr/lib64/libxcb.so /usr/lib64/libXau.so /usr/lib64/libXdmcp.so -lGL /usr/lib64/libgnome-2.so /usr/lib64/libgnomevfs-2.so -lxml2 -licui18n -licuuc -licudata -ldbus-glib-1 -ldbus-1 -lssl -lcrypto -lutil -lresolv -lcanberra /usr/lib64/libltdl.so -lvorbisfile -lvorbis -logg -lpopt /usr/lib64/libbonobo-2.so /usr/lib64/libbonobo-activation.so /usr/lib64/libORBitCosNaming-2.so /usr/lib64/libart_lgpl_2.so -lgtk-x11-2.0 -lgdk-x11-2.0 /usr/lib64/libatk-1.0.so -lpangoft2-1.0 -lpangocairo-1.0 -lgdk_pixbuf-2.0 -lcairo -lpango-1.0 /usr/lib64/libfreetype.so -lbz2 -lfontconfig /usr/lib64/libgconf-2.so -lgio-2.0 /usr/lib64/libORBit-2.so -ldl -lpthread -lgmodule-2.0 -lgobject-2.0 -lgthread-2.0 -lrt -lglib-2.0 -lpng -lm -lz -march=native -O2 -Wl,-O1 -Wl,--as-needed -pthread -pthread -Wl,-soname -Wl,libdia.so -o .libs/libdia.so /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lpng14 collect2: ld returned 1 exit status make[4]: *** [libdia.la] Erreur 1 All the .pc files (/usr/lib/pkgconfig/libpng.pc and /usr/lib64/pkgconfig/libpng.pc) are pointing to the 1.5 version, so I have no idea why this -lpng14 is used. The applications I cannot rebuild are the following : - gnome-base/gnome-settings-daemon-2.32.1-r2 - gnome-base/gnome-panel-2.32.1-r3 - app-office/gnucash-2.4.7 - media-sound/rhythmbox-0.13.3 - app-office/dia-0.97.1 I can provide complete build logs if necessary.
Yes, there are (probably) useless .la files on your system. In short, you need to remerge everything that references libpng-1.4 in /usr/lib. You should follow some guidance on bug 319101. (comment #41) *** This bug has been marked as a duplicate of bug 319101 ***
I discovered that cairo and pango , pangomm often need rebuilding as they embed references to libpng14
