Dear all, I have found an exceptional portability issue when building GNU lib for NexentaCore/i386-pc-solaris2.11.
Said system lacks the library call error (status, errno, format, ...) which therefore is brought in from GNU lib. However, should a programmer happen to erroneously write error (EXIT_FAILURE, EPERM, NULL); nothing serious will happen on GNU/Linux with Glibc, but for NexentaCore the GNU lib code will produce a segmentation fault in gnulib/error.c:265 (error_tail) vfprintf(stderr, NULL, args) Seemingly the Solaris library can not recover from a NULL format string. Some sort of runtime check might be of benefit in error_tail() to prevent this crash. Observe that the setting #undef _LIBC is in effect on this particular OpenSolaris instance, and probably on all such systems. Best regards, Mats Erik Andersson, GNU Inetutils