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MDEV-135: work-around a GCC bug seen on Debian 5 "lenny" 64-bit.

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unknown 2012-02-06 13:30:39 +01:00
commit 9f9ecc0626
3 changed files with 6 additions and 2 deletions
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2
debian/dist/Debian/rules vendored
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@ -66,7 +66,7 @@ endif
( test -d $(builddir) || mkdir $(builddir) ) && cd $(builddir) && \
sh -c 'PATH=$${MYSQL_BUILD_PATH:-"/bin:/usr/bin:/usr/local/bin"} \
CC=$${MYSQL_BUILD_CC:-gcc} \
CFLAGS=$${MYSQL_BUILD_CFLAGS:-"-O2 -fno-omit-frame-pointer -g -pipe -Wall -Wno-uninitialized"} \
CFLAGS=$${MYSQL_BUILD_CFLAGS:-"-O2 -fno-omit-frame-pointer -g -pipe -Wall -Wno-uninitialized $$(case `lsb_release -sc` in (lenny) echo -DWORKAROUND_GCC_4_3_2_BUG ;; esac)"} \
CXX=$${MYSQL_BUILD_CXX:-g++} \
CXXFLAGS=$${MYSQL_BUILD_CXXFLAGS:-"-O2 -fno-omit-frame-pointer -g -pipe -Wall -Wno-uninitialized"} \
cmake .. \

2
sql/item_sum.cc
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@ -1647,7 +1647,7 @@ double Item_sum_avg::val_real()
my_decimal *Item_sum_avg::val_decimal(my_decimal *val)
{
my_decimal sum_buff, cnt;
my_decimal cnt;
const my_decimal *sum_dec;
DBUG_ASSERT(fixed == 1);
if (aggr)

4
strings/decimal.c
View file

@ -2293,7 +2293,11 @@ static int do_div_mod(const decimal_t *from1, const decimal_t *from2,
DBUG_ASSERT(buf0 < to->buf + to->len);
*buf0=(dec1)guess;
}
#ifdef WORKAROUND_GCC_4_3_2_BUG
dcarry= *(volatile dec1 *)start1;
#else
dcarry= *start1;
#endif
start1++;
}
if (mod)