commit 2f98bf5c9fac4dfd1bb07564ce08b13d1e330252 Author: Nick Mathewson <nickm@torproject.org> Date: Mon Mar 11 15:33:44 2013 -0400 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. --- changes/warn-unsigned-time_t | 5 +++++ configure.ac | 4 ++++ 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/changes/warn-unsigned-time_t b/changes/warn-unsigned-time_t new file mode 100644 index 0000000..5f0c36d --- /dev/null +++ b/changes/warn-unsigned-time_t @@ -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. diff --git a/configure.ac b/configure.ac index 864477b..21a83bc 100644 --- a/configure.ac +++ b/configure.ac @@ -972,6 +972,10 @@ AX_CHECK_SIGN([time_t], #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], [ tor_cv_size_t_signed=yes ], [ tor_cv_size_t_signed=no ], [