-----Message d'origine----- De : zze-FS DEAN BLANCHARD M ext RD-RESA-LAN Envoyé : mardi 17 novembre 2009 11:26 À : linux-hotplug@xxxxxxxxxxxxxxx Cc : Kay Sievers; 'Matthias Schwarzott' Objet : RE: Udev 147 (and above) dependencies -----Message d'origine----- De : Matthias Schwarzott [mailto:zzam@xxxxxxxxxx] Envoyé : mardi 17 novembre 2009 10:53 À : linux-hotplug@xxxxxxxxxxxxxxx Cc : Kay Sievers; zze-FS DEAN BLANCHARD M ext RD-RESA-LAN Objet : Re: Udev 147 (and above) dependencies On Dienstag, 17. November 2009, Kay Sievers wrote: > On Tue, Nov 17, 2009 at 08:46, Matthias Schwarzott <zzam@xxxxxxxxxx> wrote: > > On Dienstag, 17. November 2009, mblanchard.ext@xxxxxxxxxxxxxxxxxx wrote: > >> I tried to compile the lastest Udev 147 on a system running linux > >> kernel > >> 2.6.31 and glibc 2.8. This attempt failed because the SOCK_CLOEXEC > >> constant is not defined in my glibc header /usr/include/bits/socket.h. > >> After a small investigation, I found the following: kernel support > >> of SOCK_CLOEXEC was introduced in the 2.6.27 release. However, the > >> glibc support was introduced in glibc 2.9. I believe this > >> dependency should be precised in the Udev README. > > > > I think udev-147 even requires kernel 2.6.29 headers, as this is the > > first release in which bsg.h is exported. > > bsg was added in 2.6.23. > Yes, and this commit exported it to userspace, so it got installed below /usr/include. So 2.6.29 were the first linux-headers to contain bsg.h commit a229fc61ef0ee3c30fd193beee0eeb87410227f1 Author: Boaz Harrosh <bharrosh@xxxxxxxxxxx> Date: Mon Jan 19 10:37:38 2009 +0100 include/linux: Add bsg.h to the Kernel exported headers Matthias Thanks for your feedback. According to the various elements mentioned, the minimal requirements for a successful kernel compilation are: - Glibc 2.9 (for SOCK_CLOEXEC support in the glibc header /usr/include/bits/socket.h), - Linux kernel headers 2.6.29 (for bsg.h support) Actually, I think Glibc 2.9 supports SOCK_CLOEXEC properly even without the associated kernel support: this one is optional and activated when specifying, at least, the '--enable-kernel=2.6.27' at Glibc compilation. However, as kernel headers 2.6.29 are mandatory for bsg.h, this fact is not significant :) Oops, I meant successful Udev compilation, of course :) -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
