The Sun compiler does not document support for SCN*8 format (%hh*).
It works only on platforms that happen to provide a runtime library
that supports the format.
Provides header files that use preprocessor tests to detect and provide
information about the compiler and its target architecture. The headers
contain no configuration-time test results and thus may be installed
into an architecture-independent include directory. This makes them
suitable for use in the public interface of any package.