* Do not cache ac_build_date.

configure.ac

@@ -56,14 +56,14 @@ PKG_CHECK_MODULES(cucul, cucul >= 0.99.beta9,
  [AC_MSG_RESULT(no)
   AC_MSG_ERROR([you need libcucul version 0.99.beta9 or later])])
 
-AC_CACHE_CHECK([for release date],
-  [ac_build_date],
-  [stamp="$(sed -ne 's/# \$Id: .*\(....-..-..\).*/\1/p;q' configure.ac)"
-   if date +"%e %B %Y" -d "$stamp" >/dev/null 2>&1; then
-     ac_build_date="$(LANG=C date +"%e %B %Y" -d "$stamp" | sed 's/^ //')"
-   else
-     ac_build_date="${stamp##*-} ${${stamp%-*}#*-} ${stamp%%-*}"
-   fi])
+AC_MSG_CHECKING([for release date])
+stamp="$(sed -ne 's/# \$Id: .*\(....-..-..\).*/\1/p;q' configure.ac)"
+ if date +"%e %B %Y" -d "$stamp" >/dev/null 2>&1; then
+   ac_build_date="$(LANG=C date +"%e %B %Y" -d "$stamp" | sed 's/^ //')"
+ else
+   ac_build_date="${stamp##*-} ${${stamp%-*}#*-} ${stamp%%-*}"
+ fi
+AC_MSG_RESULT([$ac_build_date])
 AC_DEFINE_UNQUOTED(DATE, "$ac_build_date", [Define the version date])
 
 # Optimizations