Package: dpkg Version: 1.18.10 Severity: normal I built a large package (mythtv) with this recipie: git clone https://github.com/MythTV/packaging -b fixes/0.28 cd packaging/deb ./build-debs.sh fixes/0.28
This all works fine until the dh_shlibdeps when packing it up at the end. which complains about missing dependency info for /usr/lib/ld-linux-armhf.so.3 (log below) so the odd thing is that dpkg -S ld-linux-armhf.so.3 shows two files: libc6:armhf: /lib/ld-linux-armhf.so.3 libc6:armhf: /lib/arm-linux-gnueabihf/ld-linux-armhf.so.3 but not a copy in /usr/lib (or /usr/lib/arm-linux-gnueabihf). but there is indeed such a copy: $ ls -l /usr/lib/ld-linux-armhf.so.3 lrwxrwxrwx 1 root root 30 Oct 18 22:10 /usr/lib/ld-linux-armhf.so.3 -> arm-linux-gnueabihf/ld-2.24.so both copies have the same md5sum. Do we expect libc6 to put 2 copies of this library (and 2 symlinks to it) onto the fs? Or has this come from somewhere else? (This is current install from stretch Debian-installer (Oct 31 2016, with .iso from Oct 31 2016), so shouldn't have any cruft). Obviously the dpkg -S lookup dkpg-shlibdeps does fails for /usr/lib/ld-linux-armhf.so.3 However removing /usr/lib/arm-linux-gnueabihf/ld-linux-armhf.so.3 breaks everything. In fact it turns out that there is (hard linking? bind-mounting?) magic involved, so deleting /usr/lib/arm-linux-gnueabihf/ld-linux-armhf.so.3 also deleted /lib/arm-linux-gnueabihf/ld-linux-armhf.so.3 and thus of course everything broke. i.e it's not 'really' 2 copies at all, just some kind of mirroring of /lib into /usr/lib (or the other way round?). So, after a bit of struggle putting libc back, I find that this is probably something to do with usrmerge: https://wiki.debian.org/UsrMerge So, if it is now 'correct' that all libs appear in both /lib and /usr/lib, then maybe dpkg-shlibdeps should understand that /usr/lib/ld-linux-armhf.so.3 is the same as /lib/ld-linux-armhf.so.3 and use both to look up which package is responsible in order to find the .symbols/.shlibs files? Because I don't see how we can restrict builds from finding the 'wrong' one. Or is there something I am missing about how this is supposed to work? We do have symbols and shlibs files for ld-linux-armhf.so.3: /var/lib/dpkg/info/libc6:armhf.symbols /var/lib/dpkg/info/libc6:armhf.shlibs so they should be findable. How should I fix this build? And is there a doc explaining how usrmerge is implemented on debian? ------------log excerpt--------- This happens: dh_shlibdeps dpkg-shlibdeps: error: no dependency information found for /usr/lib/ld-linux-ar\ mhf.so.3 (used by debian/mythtv-common/usr/bin/mythffplay) Hint: check if the library actually comes from a package. dh_shlibdeps: dpkg-shlibdeps -Tdebian/mythtv-common.substvars debian/mythtv-com\ mon/usr/bin/mythccextractor debian/mythtv-common/usr/bin/mythmetadatalookup deb\ ian/mythtv-common/usr/bin/mythffprobe debian/mythtv-common/usr/bin/mythffserver\ debian/mythtv-common/usr/bin/mythutil debian/mythtv-common/usr/bin/mythffplay \ debian/mythtv-common/usr/bin/mythffmpeg debian/mythtv-common/usr/bin/mythshutdo\ wn debian/mythtv-common/usr/lib/mythtv/filters/liblinearblend.so debian/mythtv-\ common/usr/lib/mythtv/filters/libcrop.so debian/mythtv-common/usr/lib/mythtv/fi\ lters/libdenoise3d.so debian/mythtv-common/usr/lib/mythtv/filters/libforce.so d\ ebian/mythtv-common/usr/lib/mythtv/filters/libquickdnr.so debian/mythtv-common/\ usr/lib/mythtv/filters/libbobdeint.so debian/mythtv-common/usr/lib/mythtv/filte\ rs/libadjust.so debian/mythtv-common/usr/lib/mythtv/filters/libgreedyhdeint.so \ debian/mythtv-common/usr/lib/mythtv/filters/libivtc.so debian/mythtv-common/usr\ /lib/mythtv/filters/libinvert.so debian/mythtv-common/usr/lib/mythtv/filters/li\ bkerneldeint.so debian/mythtv-common/usr/lib/mythtv/filters/libyadif.so debian/\ mythtv-common/usr/lib/mythtv/filters/libonefield.so debian/mythtv-common/usr/li\ b/mythtv/filters/libfieldorder.so debian/mythtv-common/usr/lib/mythtv/filters/l\ ibpostprocess.so debian/mythtv-common/usr/lib/mythtv/filters/libvflip.so return\ ed exit code 2 debian/rules:96: recipe for target 'binary' failed ------------- -- System Information: Debian Release: 8.6 Architecture: armhf (armv7l) Kernel: Linux 4.7.0-1-armmp-lpae #1 SMP Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system)
