http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50646
--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-10-07 21:46:20 UTC --- Until comparatively recently, the only thing that cared about host endianness was decimal floating-point support. However, now the lexer cares as well. What is the host system for which the endianness test gets that far? For most hosts the endianness would be determined based on the header tests.