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build: Fix building clutter on armv4t devices

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GCC will define __ARM_ARCH_4T__ when building with "-march=armv4t" so we
can check this to turn off the use of 'clz' instructions, which
otherwise would cause compile errors like "selected processor does not
support ARM mode `clz r3,r0'".

Signed-off-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Joshua Lock <josh@linux.intel.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
This commit is contained in:
Joshua Lock 2012-01-05 20:09:44 +00:00 committed by Robert Bragg
parent 6731569c18
commit 20f2d51392
1 changed files with 1 additions and 1 deletions
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cogl/cogl-fixed.c
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@ -629,7 +629,7 @@ cogl_fixed_sqrt (CoglFixed x)
/*
* Find the highest bit set
*/
#if defined (__arm__)
#if defined (__arm__) && !defined(__ARM_ARCH_4T__)
/* This actually requires at least arm v5, but gcc does not seem
* to set the architecture defines correctly, and it is I think
* very unlikely that anyone will want to use clutter on anything