Hi guys,
I am trying to build an armv8 (64bit kernel and libs) RetroArch with NEON support, so I do:
CFLAGS="-O3 -march=armv8-a+crc -mtune=cortex-a53" CXXFLAGS="-O3 -march=armv8-a+crc -mtune=cortex-a53" ./configure --enable-neon
But unfortunately I get this:
Checking presence of predefined macro ARM_NEON … no Build assumed that ARM_NEON is defined, but it’s not. Exiting …
So, what is going on here? Is NEON inherent to armv8 or something like that? Not available? I have seen the switch specific Makefile hast HAVE_NEON, for example… NEON is important on those ARM plaftorms because it saves a lof of CPU on the audio resampling code.