Bug#819091: clblas: Enable altivec on ppc64el

[TFAUCK]

Hello,

By default powerpc64 P8 system provides -maltivec gcc option preventing
compilation - a patch is disabling that option with the -mno-altivec flag.
In order to authorize that -maltivec flag to allow use of vector
optimisation, two issues must be considered
- vector name is a reserved keyword and can't be part of a struct.
Commit a7e1d4c934e29d2861d95c2ee955707353b59db3 is renaming "vector" to
"Vector".
- in defbool.h, the bool definition must be replaced with a non vector
one due to a a C++ issue. Commit
ef1b194971d9e4ea1043e668940c83ee60eebc2d ensures the altivec definitions
are correct.
-- 

__________________________________________________________________________
thf - Thierry Fauck - tfauck at free.fr>
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