compiler.h: only use inx/outx on ARM with glibc
musl only implements inx/outx on x86, so check for GLIBC instead of linux.
Signed-off-by: Ross Burton ross.burton@intel.com
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musl only implements inx/outx on x86, so check for GLIBC instead of linux.
Signed-off-by: Ross Burton ross.burton@intel.com