preliminary systemtap support for tracing

We will key most client events by pid() and file descriptors,
as this is least ambiguous.  There are some minor refactorings
to pass "struct mog_fd *" around as much as possible instead of
"struct mog_http *".

1 files changed, 2 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index adb37f3..8a9e6d1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -61,5 +61,7 @@ case $build_os in
 esac
 ])
 
+CM_SYSTEMTAP
+
 AC_CONFIG_FILES([Makefile lib/Makefile])
 AC_OUTPUT