The attached change to liboil causes it to be built with GCC when
building on x86 platforms, so that hardware acceleration support is
enabled.  The new patch uses the getisax(2) kernel function so that
hardware acceleration support is determined using the correct Solaris
kernel interface.

I have verified that liboil functions are 4-6 times faster using
GCC so that the GCC-style assembly code for hardware acceleration
gets compiled, and we don't just use the default C-implementations.

Brian


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