Re: possible freetype transition; improved library handling needed for all C/C++ packages
Le Vendredi 25 Novembre 2005 02:38, Steve Langasek a écrit : Try debian/patches/common/07_disable_no_undefined.diff from any of the core KDE packages. Er... that doesn't sound like a good thing, why would you want to allow undefined references? If I recall correctly, the -no-undefined flag was being used along with --allow-undefined as an attempt to make all templates used by a library be instantiated. Unfortunately, that _depended_ on libtool's broken behavior; without a full list of libraries, the link spews loads of undefined symbol warnings. (Back when I wrote the patch, the link would actually succeed eventually despite all the warnings, but that might have changed since then.) With the patch, KDE falls back to its old behavior of resolving this by linking a fake object file against the library object files before linking the libraries. -- Daniel Schepler
Re: possible freetype transition; improved library handling needed for all C/C++ packages
On Tue, Nov 22, 2005 at 02:37:19PM -0800, Steve Langasek wrote: Due to upstream ABI changes, it looks very likely that libfreetype is going to have to undergo a library transition in the near future[0]. The details are still being settled, and it's possible (though unlikely) that the library will be fixed so that no transition is needed, but in the meantime I'd like to leave you all with a public service announcement. [...] This email, therefore, is a call-to-arms for maintainers to improve the library handling in their packages. The impetus for this request is the prospective freetype transition, but if you maintain *any* packages in C and C++, this mail is still addressed to you. So, I found out that my trustedqsl package is fairly guilty in this regard. Not in regard to freetype, but it links directly to openssl and libexpat, even though it doesn't use them. Upstream's autoconf setup actually does this deliberately. I've trimmed the configure scripts to avoid this, leaving me with the link commands for the two binaries being: g++ -Wall `/usr/bin/wx-config --cxxflags` -I/usr/include -I/usr/include -I/usr/include -g -O2 -o tqsl tqsl.o extwizard.o tqslwiz.o dxcc.o stationdial.o qsodatadialog.o tqslvalidator.o tqsl_prefs.o wxutil.o -pthread -lwx_gtk-2.4 -ltqsllib g++ -Wall `/usr/bin/wx-config --cxxflags` -I/usr/include -I/usr/include -I/usr/include -g -O2 -o tqslcert tqslcert.o crqwiz.o dxcc.o certtree.o tqslcert_prefs.o getpassword.o extwizard.o loadcertwiz.o wxutil.o -pthread -lwx_gtk-2.4 -ltqsllib (wx-config --libs says -pthread -lwx_gtk-2.4). However, my built package depends on zlib1g, which it doesn't use directly and doesn't -l during link. I'd welcome any suggestions on how this might be... dpkg-shlibdeps bug? thanks Hamish -- Hamish Moffatt VK3SB [EMAIL PROTECTED] [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: possible freetype transition; improved library handling needed for all C/C++ packages
On Sun, Nov 27, 2005 at 11:48:37PM +1100, Hamish Moffatt wrote: I've trimmed the configure scripts to avoid this, leaving me with the link commands for the two binaries being: g++ -Wall `/usr/bin/wx-config --cxxflags` -I/usr/include -I/usr/include -I/usr/include -g -O2 -o tqsl tqsl.o extwizard.o tqslwiz.o dxcc.o stationdial.o qsodatadialog.o tqslvalidator.o tqsl_prefs.o wxutil.o -pthread -lwx_gtk-2.4 -ltqsllib However, my built package depends on zlib1g, which it doesn't use directly and doesn't -l during link. ./tqsl.cpp:#include zlib.h And on line 691 you have a gzFile, 1157 calls gzopen, ... Your configure script also checks for it, and adds it. linking tqslcert to -lz doesn't seem to be needed though. I'd welcome any suggestions on how this might be... dpkg-shlibdeps bug? This is a linker feature which I dislike. It adds missing libraries if one of the libraries you link to happens to be linked to the one you need. For more info see: http://sourceware.org/ml/binutils/2005-09/msg00200.html Kurt -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: possible freetype transition; improved library handling needed for all C/C++ packages
On Sun, Nov 27, 2005 at 02:31:05PM +0100, Kurt Roeckx wrote: On Sun, Nov 27, 2005 at 11:48:37PM +1100, Hamish Moffatt wrote: g++ -Wall `/usr/bin/wx-config --cxxflags` -I/usr/include -I/usr/include -I/usr/include -g -O2 -o tqsl tqsl.o extwizard.o tqslwiz.o dxcc.o stationdial.o qsodatadialog.o tqslvalidator.o tqsl_prefs.o wxutil.o -pthread -lwx_gtk-2.4 -ltqsllib However, my built package depends on zlib1g, which it doesn't use directly and doesn't -l during link. ./tqsl.cpp:#include zlib.h And on line 691 you have a gzFile, 1157 calls gzopen, ... So it does. (And so much for my grep skills.) Your configure script also checks for it, and adds it. linking Not as of 1.11-3, where I removed the checks for libz, libexpat and libssl. The latter two definitely aren't needed, and do disappear from the binary package's Depends line as a result. tqslcert to -lz doesn't seem to be needed though. I'd welcome any suggestions on how this might be... dpkg-shlibdeps bug? This is a linker feature which I dislike. It adds missing libraries if one of the libraries you link to happens to be linked to the one you need. For more info see: http://sourceware.org/ml/binutils/2005-09/msg00200.html Interesting. Thanks. Hamish -- Hamish Moffatt VK3SB [EMAIL PROTECTED] [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: possible freetype transition; improved library handling needed for all C/C++ packages
On Sun, 27 Nov 2005, Hamish Moffatt wrote: On Tue, Nov 22, 2005 at 02:37:19PM -0800, Steve Langasek wrote: Due to upstream ABI changes, it looks very likely that libfreetype is going to have to undergo a library transition in the near future[0]. The details are still being settled, and it's possible (though unlikely) that the library will be fixed so that no transition is needed, but in the meantime I'd like to leave you all with a public service announcement. [...] This email, therefore, is a call-to-arms for maintainers to improve the library handling in their packages. The impetus for this request is the prospective freetype transition, but if you maintain *any* packages in C and C++, this mail is still addressed to you. So, I found out that my trustedqsl package is fairly guilty in this regard. Not in regard to freetype, but it links directly to openssl and libexpat, even though it doesn't use them. Upstream's autoconf setup actually does this deliberately. I've trimmed the configure scripts to avoid this, leaving me with the link commands for the two binaries being: g++ -Wall `/usr/bin/wx-config --cxxflags` -I/usr/include -I/usr/include -I/usr/include -g -O2 -o tqsl tqsl.o extwizard.o tqslwiz.o dxcc.o stationdial.o qsodatadialog.o tqslvalidator.o tqsl_prefs.o wxutil.o -pthread -lwx_gtk-2.4 -ltqsllib g++ -Wall `/usr/bin/wx-config --cxxflags` -I/usr/include -I/usr/include -I/usr/include -g -O2 -o tqslcert tqslcert.o crqwiz.o dxcc.o certtree.o tqslcert_prefs.o getpassword.o extwizard.o loadcertwiz.o wxutil.o -pthread -lwx_gtk-2.4 -ltqsllib And what does wx-config produce? Please expand everything when asking questions. (wx-config --libs says -pthread -lwx_gtk-2.4). But you use --cxxflags. However, my built package depends on zlib1g, which it doesn't use directly and doesn't -l during link. objdump -p $binary|grep NEEDED. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: possible freetype transition; improved library handling needed for all C/C++ packages
On Thu, Nov 24, 2005 at 02:43:14PM +0100, Peter Eisentraut wrote: Steve Langasek wrote: * Use Debian's libtool. kmldonkey links with the following libraries: -lkdeui -lkio. As shipped, libtool expands that to every library under the sun. The new libtool indeed reduces this to /usr/lib/libkdeui.so /usr/lib/libkio.so and a few system libraries/objects, which is then greeted by ld with hundreds of error messages of the kind: /usr/share/qt3/include/qstring.h:847: undefined reference to `QString::shared_null' /usr/share/qt3/include/qstring.h:848: undefined reference to `QStringData::deleteSelf()' kmldonkey seems to have alot (26?) includes of qstring.h, so to me this doesn't looks like a bug in libtool but rather in your package not linking to all the libraries it should be. It just used to work, which is not an excuse for not having a build dependency on it or linking to it. Both libkdeui and libkio reference (as shown by ldd) libqt-mt (which I suppose is where these symbols should be). So you probably should add a build dependency to libqt3-mt-dev, and add a -lqt-mt The error messages in the rekall build are of the sort .../rekall-2.2.3-2/db/mysql/kb_mysql.cpp:595: undefined reference to `i18n(char const*)' Which is defined in /usr/include/kde/klocale.h, so that would be part of kdelibs, and seems you need to link to -lkdecore for that, which you don't seem to link atleast for that. (Also see libs/common/kb_classes.h:408) Have other maintainers of Qt/KDE-related packages perhaps experienced this? I'm not sure many people have actually tried to get things right, since it just works. I hope more people actually look at their packages, and maybe ask for help if they can't figure it out themself. Kurt -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: possible freetype transition; improved library handling needed for all C/C++ packages
On Thu, Nov 24, 2005 at 01:25:07AM +0100, Henning Makholm wrote: Scripsit Steve Langasek [EMAIL PROTECTED] * Don't use other *-config tools. While many libraries these days use pkg-config, there are also other libs which ship their own tools for querying library and header include paths, libs needed for linking, etc. The problem is that all of these tools I've seen are incapable of distinguishing between what's needed for static linking, and what's needed for dynamic linking. Would you recommend against *shipping* such a script when upstream provides it (in addition to a .pc file)? If upstream ships both a .pc file (either correct, or fixable as described) and a -config script that does the wrong thing, then yeah, I would recommend to not ship the -config script unless there is a compelling reason why you need to keep it... -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. [EMAIL PROTECTED] http://www.debian.org/ signature.asc Description: Digital signature
Re: possible freetype transition; improved library handling needed for all C/C++ packages
Steve Langasek wrote: * Use Debian's libtool. I took one affected package (kmldonkey) from your list, relibtoolized it as described, and rebuilt it, which failed spectacularly. Then, I took another one (rekall), relibtoolized it, rebuilt it, and that failed with a strikingly similar pattern. kmldonkey links with the following libraries: -lkdeui -lkio. As shipped, libtool expands that to every library under the sun. The new libtool indeed reduces this to /usr/lib/libkdeui.so /usr/lib/libkio.so and a few system libraries/objects, which is then greeted by ld with hundreds of error messages of the kind: /usr/share/qt3/include/qstring.h:847: undefined reference to `QString::shared_null' /usr/share/qt3/include/qstring.h:848: undefined reference to `QStringData::deleteSelf()' Both libkdeui and libkio reference (as shown by ldd) libqt-mt (which I suppose is where these symbols should be). The error messages in the rekall build are of the sort .../rekall-2.2.3-2/db/mysql/kb_mysql.cpp:595: undefined reference to `i18n(char const*)' In this case -lqt-mt is actually on the libtool command line. So what is wrong here? Have other maintainers of Qt/KDE-related packages perhaps experienced this? -- Please send copies of list mail to me. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: possible freetype transition; improved library handling needed for all C/C++ packages
Le Jeudi 24 Novembre 2005 14:43, Peter Eisentraut a écrit : Steve Langasek wrote: * Use Debian's libtool. I took one affected package (kmldonkey) from your list, relibtoolized it as described, and rebuilt it, which failed spectacularly. Then, I took another one (rekall), relibtoolized it, rebuilt it, and that failed with a strikingly similar pattern. kmldonkey links with the following libraries: -lkdeui -lkio. As shipped, libtool expands that to every library under the sun. The new libtool indeed reduces this to /usr/lib/libkdeui.so /usr/lib/libkio.so and a few system libraries/objects, which is then greeted by ld with hundreds of error messages of the kind: /usr/share/qt3/include/qstring.h:847: undefined reference to `QString::shared_null' /usr/share/qt3/include/qstring.h:848: undefined reference to `QStringData::deleteSelf()' Both libkdeui and libkio reference (as shown by ldd) libqt-mt (which I suppose is where these symbols should be). The error messages in the rekall build are of the sort .../rekall-2.2.3-2/db/mysql/kb_mysql.cpp:595: undefined reference to `i18n(char const*)' In this case -lqt-mt is actually on the libtool command line. So what is wrong here? Have other maintainers of Qt/KDE-related packages perhaps experienced this? Try debian/patches/common/07_disable_no_undefined.diff from any of the core KDE packages. -- Daniel Schepler
Re: possible freetype transition; improved library handling needed for all C/C++ packages
On Thu, Nov 24, 2005 at 03:12:46PM +0100, Daniel Schepler wrote: Le Jeudi 24 Novembre 2005 14:43, Peter Eisentraut a écrit : Steve Langasek wrote: * Use Debian's libtool. I took one affected package (kmldonkey) from your list, relibtoolized it as described, and rebuilt it, which failed spectacularly. Then, I took another one (rekall), relibtoolized it, rebuilt it, and that failed with a strikingly similar pattern. kmldonkey links with the following libraries: -lkdeui -lkio. As shipped, libtool expands that to every library under the sun. The new libtool indeed reduces this to /usr/lib/libkdeui.so /usr/lib/libkio.so and a few system libraries/objects, which is then greeted by ld with hundreds of error messages of the kind: /usr/share/qt3/include/qstring.h:847: undefined reference to `QString::shared_null' /usr/share/qt3/include/qstring.h:848: undefined reference to `QStringData::deleteSelf()' Both libkdeui and libkio reference (as shown by ldd) libqt-mt (which I suppose is where these symbols should be). The error messages in the rekall build are of the sort .../rekall-2.2.3-2/db/mysql/kb_mysql.cpp:595: undefined reference to `i18n(char const*)' In this case -lqt-mt is actually on the libtool command line. So what is wrong here? Have other maintainers of Qt/KDE-related packages perhaps experienced this? Try debian/patches/common/07_disable_no_undefined.diff from any of the core KDE packages. Er... that doesn't sound like a good thing, why would you want to allow undefined references? -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. [EMAIL PROTECTED] http://www.debian.org/ signature.asc Description: Digital signature
Re: possible freetype transition; improved library handling needed for all C/C++ packages
Scripsit Steve Langasek [EMAIL PROTECTED] * Don't use other *-config tools. While many libraries these days use pkg-config, there are also other libs which ship their own tools for querying library and header include paths, libs needed for linking, etc. The problem is that all of these tools I've seen are incapable of distinguishing between what's needed for static linking, and what's needed for dynamic linking. Would you recommend against *shipping* such a script when upstream provides it (in addition to a .pc file)? -- Henning Makholm Larry wants to replicate all the time ... ah, no, all I meant was that he likes to have a bang everywhere. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: possible freetype transition; improved library handling needed for all C/C++ packages
Re: Steve Langasek in [EMAIL PROTECTED] If you maintain a package that's affected by this issue, you can help today; there's no need to wait until your package is hit by a library transition to make the changes described above. Indeed, for packages which depend on libfreetype6, it's important that we begin fixing these as soon as possible to avoid another multi-month transition. A complete list of packages that are potentially affected by the freetype transition can be found at [6]. [6] http://people.debian.org/~vorlon/freetype-without-builddeps.txt Here's that list again, regenerated today with the command from [6], and piped through dd-list. Christoph -- [EMAIL PROTECTED] | http://www.df7cb.de/ Anibal Avelar (Fixxxer) [EMAIL PROTECTED] idesk Laszlo Boszormenyi (GCS) [EMAIL PROTECTED] xsidplay J.H.M. Dassen (Ray) [EMAIL PROTECTED] pstoedit Masayuki Hatta (mhatta) [EMAIL PROTECTED] abiword Moray Allan [EMAIL PROTECTED] libmatchbox matchbox-desktop matchbox-panel matchbox-window-manager Tore Anderson [EMAIL PROTECTED] obconf openbox Ben Armstrong [EMAIL PROTECTED] came Don Armstrong [EMAIL PROTECTED] libimage-imlib2-perl Enrique Robledo Arnuncio [EMAIL PROTECTED] rosegarden4 Julien BLACHE [EMAIL PROTECTED] gphotocoll Thomas Bushnell, BSG [EMAIL PROTECTED] bonobo gal0.x gnucash gtkhtml Sebastien Bacher [EMAIL PROTECTED] evince gtk+2.0 gtkterm totem Michael Banck [EMAIL PROTECTED] exult Romain Beauxis [EMAIL PROTECTED] kshutdown Bradley Bell [EMAIL PROTECTED] kaptain Jon Bernard [EMAIL PROTECTED] libimlib2-ruby Michael Biebl [EMAIL PROTECTED] kdesvn Eduard Bloch [EMAIL PROTECTED] icewm rxvt-unicode Gonéri Le Bouder [EMAIL PROTECTED] klibido Regis Boudin [EMAIL PROTECTED] tellico Chris Boyle [EMAIL PROTECTED] klogic Rob Bradford [EMAIL PROTECTED] anjuta screem Ben Burton [EMAIL PROTECTED] kdeaddons kdeedu kdesdk kile regina-normal Bruno Barrera C. [EMAIL PROTECTED] bbkeys blackbox Giacomo Catenazzi [EMAIL PROTECTED] knapster2 Zack Cerza [EMAIL PROTECTED] kaffeine Cyril Chaboisseau [EMAIL PROTECTED] qgo Volker Christian [EMAIL PROTECTED] synce-kde Paul Cupis [EMAIL PROTECTED] guarddog guidedog Julien Danjou [EMAIL PROTECTED] telak torsmo Debian Edu Developers debian-edu@lists.debian.org kgeography Debian GCC Maintainers debian-gcc@lists.debian.org gcc-snapshot Debian Install System Team debian-boot@lists.debian.org gtk+2.0-directfb Debian OCaml Maintainers debian-ocaml-maint@lists.debian.org advi Debian OpenOffice Team debian-openoffice@lists.debian.org oooqs Debian Qt/KDE Maintainers debian-qt-kde@lists.debian.org kdeadmin kdebase kdebindings kdegames kdegraphics kdelibs kdemultimedia kdenetwork kdepim kdeutils kdewebdev koffice Julien Delange [EMAIL PROTECTED] amule Murat Demirten [EMAIL PROTECTED] sim Eric Dorland [EMAIL PROTECTED] mozilla-firefox Benjamin Drieu [EMAIL PROTECTED] prestimel Peter Eisentraut [EMAIL PROTECTED] kmldonkey rekall Free Ekanayaka [EMAIL PROTECTED] creox Rene Engelhard [EMAIL PROTECTED] kover Peter Van Eynde [EMAIL PROTECTED] cl-gd Helen Faulkner [EMAIL PROTECTED] kaquarium kcpuload kfish knetload labplot Bartosz Fenski [EMAIL PROTECTED] adesklets asc pypanel Fabian Franz [EMAIL PROTECTED] qtparted Hans Fugal [EMAIL PROTECTED] csound Sylvain Le Gall [EMAIL PROTECTED] mldonkey David Moreno Garza [EMAIL PROTECTED] tilda Igor Genibel [EMAIL PROTECTED] kexi Daniel Glassey [EMAIL PROTECTED] bibletime Debian QA Group [EMAIL PROTECTED] gfax kbear ksetisaver ksocrat libgtk-perl mysql-navigator okle windowlab Yu Guanghui [EMAIL PROTECTED] fcitx Francois Gurin [EMAIL PROTECTED] kismet Stefan Gybas [EMAIL PROTECTED] kflog Peter Hawkins [EMAIL PROTECTED] libqt-perl Adam Heath [EMAIL PROTECTED] jmagick Andres Seco Hernandez [EMAIL PROTECTED] swscanner Matt Hope [EMAIL PROTECTED] fluxbox Morten Hustveit [EMAIL PROTECTED] kwavecontrol Mark Hymers [EMAIL PROTECTED] kst Masami Ichikawa [EMAIL PROTECTED] bookmarkbridge Teemu Ikonen [EMAIL PROTECTED] imview Alberto Gonzalez Iniesta [EMAIL PROTECTED] hotswap kmyfirewall Aurelien Jarno [EMAIL PROTECTED] keybled kid3 klineakconfig ksensors ksimus quiteinsane quiteinsanegimpplugin Steffen Joeris [EMAIL PROTECTED] score-reading-trainer Joel Johnson [EMAIL PROTECTED] ktorrent Norman Jordan [EMAIL PROTECTED] kdevelop3 Tomohiro KUBOTA [EMAIL PROTECTED] mlterm Zdenek Kabelac [EMAIL PROTECTED] avifile Theodore Karkoulis [EMAIL PROTECTED] kbarcode kxdocker Jean-Michel Kelbert [EMAIL PROTECTED] k3b karamba kbiff komba2 kuake showimg superkaramba Gerd Knorr [EMAIL PROTECTED] motv xawtv
