Commit 06dee2b7 authored by Lucas Dutra Nunes's avatar Lucas Dutra Nunes Committed by Otavio Salvador

linux-fslc: kernel build now needs GNU bc to work

The kernel now needs to use GNU bc to be built since version 3.9. The following
commit message from the kernel explains the reason:

commit 70730bca1331fc50c3caacaea00439de1325bd6e
Author: H. Peter Anvin <hpa@zytor.com>
Date:   Thu Feb 14 15:13:55 2013 -0800

    kernel: Replace timeconst.pl with a bc script

    bc is the standard tool for multi-precision arithmetic.  We switched
    to Perl because akpm reported a hard-to-reproduce build hang, which
    was very odd because affected and unaffected machines were all running
    the same version of GNU bc.

    Unfortunately switching to Perl required a really ugly "canning"
    mechanism to support Perl < 5.8 installations lacking the Math::BigInt
    module.

    It was recently pointed out to me that some very old versions of GNU
    make had problems with pipes in subshells, which was indeed the
    construct used in the Makefile rules in that version of the patch;
    Perl didn't need it so switching to Perl fixed the problem for
    unrelated reasons.  With the problem (hopefully) root-caused, we can
    switch back to bc and do the arbitrary-precision arithmetic naturally.
Signed-off-by: 's avatarH. Peter Anvin <hpa@zytor.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: 's avatarSam Ravnborg <sam@ravnborg.org>
Signed-off-by: 's avatarMichal Marek <mmarek@suse.cz>

Change-Id: I09ec3629bf47aa4768bd21b0cfb1ca6fb6f5b18f
Signed-off-by: 's avatarLucas Dutra Nunes <ldnunes@ossystems.com.br>
parent 590e1a7b
......@@ -4,7 +4,7 @@
DESCRIPTION = "Freescale Community mainline based Linux kernel"
LICENSE = "GPLv2"
LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
DEPENDS += "lzop-native"
DEPENDS += "lzop-native bc-native"
PROVIDES = "virtual/kernel linux-mainline"
inherit kernel
......
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