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package/keyutils: disable on avr32 & microblaze

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keyutils builds on neither avr32, nor microblaze (probably because
the toolchains used for those archictectures are way too old), with:

    ..../microblazeel-unknown-linux-gnu-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
    -D_FILE_OFFSET_BITS=64 -I. -DPKGBUILD="\"2012-12-27\"" -DPKGVERSION="\"keyutils-1.5.5\""
    -DAPIVERSION="\"libkeyutils-1.4\"" -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
    -D_FILE_OFFSET_BITS=64  -pipe -Os  -g -Wall -Werror -UNO_GLIBC_KEYERR -o keyutils.o -c keyutils.c
    cc1: warnings being treated as errors
    key.dns_resolver.c: In function 'main':
    key.dns_resolver.c:690: warning: dereferencing type-punned pointer will break strict-aliasing rules

Fixing with -fno-strict-aliasing only partially solves the issue for these
two archs, since the C library does not export the resolver symbols so the
link fails down the road...
  - on microblaze, glibc-2.3.6 is tool old and does not set these symbols
    as GLOBALs;
  - on avr32, uClibc does not have these symbols.

It is much more easy to just disable keyutils for avr32 and microblaze.

Fixes both (avr2, microblaze):
    http://autobuild.buildroot.net/results/aa86f6a68f5d0ea4914ab259ed270615bc9d6a99/
    http://autobuild.buildroot.net/results/70ae127a6e353fd5c64c0c3b4e19a2e93d54ce52/

Merry X-Mas!

PS. Thanks Richard for the help understanding those issues.

Cc: Richard Braun <rbraun@sceen.net>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Yann E. MORIN 2012-12-27 13:20:36 +00:00 committed by Peter Korsgaard
parent fc0d1be16b
commit 20e0926f44
1 changed files with 1 additions and 0 deletions
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1
package/keyutils/Config.in
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@ -1,5 +1,6 @@
config BR2_PACKAGE_KEYUTILS config BR2_PACKAGE_KEYUTILS
bool "keyutils" bool "keyutils"
depends on !BR2_avr32 && !BR2_microblaze
help help
These tools are used to control the key management system These tools are used to control the key management system
built into the Linux kernel. built into the Linux kernel.