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On Wed, Nov 10, 2010 at 4:09 PM, Yann E. MORIN <yann.morin.1998@anciens.enib.fr> wrote: > Bryan, All, > > On Wednesday 10 November 2010 19:39:00 Bryan Hundven wrote: >> +config LIBC_DISABLE_VERSIONING >> +  Âbool >> +  Âprompt "Disable versioning information in library objects" >> +  Âdefault n >> +  Âhelp >> +   ÂDo not include versioning information in the library objects. > > Could you elaborate on why one may wish to disable symbols versionning? Yes, Since the box that I am building on (Debian Lenny, x86_32) is using glibc-2.7, and when I build, say elfutils (which does not support HOST_CC) builds i386_gendis, which in turn it runs to generate disassembler info for libdw, it fails with: ./i386_gendis: /lib/i686/cmov/libc.so.6: version `GLIBC_2.8' not found (required by ./i386_gendis) One way to fix this is to append: -Wl,-rpath,$(HOME)/x-tools/i686-nptl-linux-gnu/i686-nptl-linux-gnu/sys-root/lib to i386_gendis_LDADD in elfutils-0.149/libcpu/Makefile.in (Yuck) And the other way is to remove library version info from my cross-compiler's eglibc. I am currently working on a patch to add proper cross-compiler support to elfutils, but this is a ways off. I am sure that someone else has a better use-case for removing versioning information, but this is what I got so far. If someone knows of a better way to handle this kind of issue, I would love to hear about it. >> +config LIBC_OLDEST_ABI >> +  Âstring >> +  Âprompt "Configure the oldest ABI supported [e.g. 2.2]" >> +  Âdefault "" >> +  Âhelp >> +   ÂSetting this option, for example, to 2.2 will provide ABI support >> +   Âback to (e)glibc-2.2. >> + >> +   ÂIf this option is not set, (e)glibc will choose for you. >> + > > I've split the patch in two: one to add the symbols versioning option, > and the other to add the ABI selection. > > I have them pending here. Thank you! If you would like, I can resubmit them as separate patches? > Regards, > Yann E. MORIN. > > -- > .-----------------.--------------------.------------------.--------------------. > | ÂYann E. MORIN Â| Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: | > | +33 662 376 056 | Software ÂDesigner | \ / CAMPAIGN   | Â___        | > | +33 223 225 172 `------------.-------: ÂX ÂAGAINST   Â| Â\e/ ÂThere is no Â| > | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL  Â|  v  conspiracy. Â| > '------------------------------^-------^------------------^--------------------' > > > -Bryan -- For unsubscribe information see http://sourceware.org/lists.html#faq
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