Ben Pfaff wrote: > Wow. This is a gigantic bug that I don't see documented > anywhere.
I can't reproduce it with the "cc" compilers I have access to right now. But it was apparently seen on HP-UX 11: [1] mentions a warning cc: "quotearg.c", line 275: warning 30: Character constant contains undefined escape sequence. and quotearg.c line 275 in findutils-4.1.5.tar.gz contains (after preprocessor expansion): case '\a': esc = 'a'; goto c_escape; So that compiler did not understand '\a'. I believe the same holds for '\xNN'. > "git ls-files | grep '\.c$' | xargs grep '\\x'" shows > that \x is used many places in the Gnulib tests directory. Do we > need to document this and avoid \x everywhere? It looks like the problem has not been seen in the last 1-2 years, so I'd say, let's consider it a problem of the past. If it reappears, we may be able to recommend a different compiler. Bruno [1] <http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1293905158136+28353475&threadId=859152>
