Warn at configure time when time_t is unsigned

Inspired by #8042.

As far as I know, OpenVMS is the only place you're likely to hit an
unsigned time_t these days, and Tor's VMS support
is... lacking. Still worth letting people know about it, though.
This commit is contained in:
Nick Mathewson 2013-03-11 15:33:44 -04:00
parent ef4db31693
commit 2f98bf5c9f
2 changed files with 9 additions and 0 deletions

View File

@ -0,0 +1,5 @@
o Build improvements:
- Warn if building on a platform with an unsigned time_t: there
are too many places where Tor currently assumes that time_t can
hold negative values. We'd like to fix them all, but probably
some will remain.

View File

@ -972,6 +972,10 @@ AX_CHECK_SIGN([time_t],
#endif #endif
]) ])
if test "$ax_cv_decl_time_t_signed" = no; then
AC_MSG_WARN([You have an unsigned time_t; some things will probably break. Please tell the Tor developers about your interesting platform.])
fi
AX_CHECK_SIGN([size_t], AX_CHECK_SIGN([size_t],
[ tor_cv_size_t_signed=yes ], [ tor_cv_size_t_signed=yes ],
[ tor_cv_size_t_signed=no ], [ [ tor_cv_size_t_signed=no ], [