The machine which I used for HP-UX testing appears to not be accessible any more. And for the last 3 years at least, I got the feeling that there was no one building or using packages on HP-UX that rely on gnulib. So:
2020-05-10 Bruno Haible <br...@clisp.org> doc: Mark HP-UX as unsupported. * doc/gnulib-intro.texi (Target Platforms): List HP-UX as unsupported. diff --git a/doc/gnulib-intro.texi b/doc/gnulib-intro.texi index be703a4..f935875 100644 --- a/doc/gnulib-intro.texi +++ b/doc/gnulib-intro.texi @@ -156,8 +156,6 @@ musl libc is rarely tested. @item Minix 3.3.0 is rarely tested. @item -HP-UX 11.31 is very rarely tested. -@item @c IRIX 6.5 cc has no option for C99 support. You would need to use gcc instead. IRIX 6.5 is very rarely tested. @item @@ -178,7 +176,7 @@ Mac OS X 10.4 and older. @item AIX 4 and older. @item -HP-UX 10. +HP-UX 11.31. @item IRIX 6.4 and older. @item