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botan: disable AltiVec if the CPU does not support it 

Botan compiles all PowerPC code with AltiVec support and only determines
at runtime whether the CPU even supports it. If the target CPU uses the
older SPE extensions, though, this is too late; since SPE and AltiVec
are incompatible, gcc aborts the compilation. This patch explicitly
disables AltiVec support unless BR2_POWERPC_CPU_HAS_ALTIVEC is defined

Signed-off-by: Tobias Blass <tobias.blass@rohde-schwarz.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017.08.x
Tobias Blass 2017-06-06 16:29:11 +02:00 committed by Thomas Petazzoni
parent 017d105a6f
commit e654839f9e
1 changed files with 6 additions and 0 deletions
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6
package/botan/botan.mk
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@ -43,6 +43,12 @@ BOTAN_DEPENDENCIES += zlib
BOTAN_CONF_OPTS += --with-zlib
endif
ifeq ($(BR2_POWERPC_CPU_HAS_ALTIVEC),y)
BOTAN_CONF_OPTS += --enable-altivec
else
BOTAN_CONF_OPTS += --disable-altivec
endif
define BOTAN_CONFIGURE_CMDS
(cd $(@D); $(TARGET_MAKE_ENV) ./configure.py $(BOTAN_CONF_OPTS))
endef