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Deal with architectures where ALIGNOF_DOUBLE < 4 

This patch isn't really tested as I don't have such a machine, but I
have a bug report that on m68k machines, double values are aligned on
smaller than 4 byte boundaries. If ALIGNOF_DOUBLE < sizeof(int),
the "expected" sizeof of FcValue is miscomputed. Use the maximum of 4
(sizeof (int)) and ALIGNOF_DOUBLE when computing the expected size of
FcValue.

Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Keith Packard 2012-05-01 19:28:27 -07:00 committed by Akira TAGOH
parent e41474e925
commit d81407611b
1 changed files with 3 additions and 1 deletions
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4
src/fcarch.c
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@ -56,7 +56,9 @@ FC_ASSERT_STATIC (SIZEOF_VOID_P == sizeof (FcStrSet *));
FC_ASSERT_STATIC (SIZEOF_VOID_P == sizeof (FcCharLeaf **));
FC_ASSERT_STATIC (SIZEOF_VOID_P == sizeof (FcChar16 *));
FC_ASSERT_STATIC (0x08 + 1*ALIGNOF_DOUBLE == sizeof (FcValue));
#define FC_MAX(a,b) ((a) > (b) ? (a) : (b))
FC_ASSERT_STATIC (0x08 + 1*FC_MAX(4,ALIGNOF_DOUBLE) == sizeof (FcValue));
FC_ASSERT_STATIC (0x00 + 2*SIZEOF_VOID_P == sizeof (FcPatternElt));
FC_ASSERT_STATIC (0x08 + 2*SIZEOF_VOID_P == sizeof (FcPattern));
FC_ASSERT_STATIC (0x08 + 2*SIZEOF_VOID_P == sizeof (FcCharSet));