diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 57 |
1 files changed, 44 insertions, 13 deletions
diff --git a/configure.in b/configure.in index 09631078..0a2af8ec 100644 --- a/configure.in +++ b/configure.in @@ -225,25 +225,56 @@ AC_DEFINE_UNQUOTED(PID_DIR, "$dir") # Sendmail without the -t option to use the message headers will work too, # not just for sendmail itself but for workalikes like exim. # -# Note: it would be a very bad idea to use any MDA that doesn't return +# Note1: A disadvantage of using procmail is that local alias expansion +# according to /etc/aliases won't get done if we fall back. +# +# Note2: it would be a very bad idea to use any MDA that doesn't return # a refuse-to-deliver status on disk- or process-table-full # conditions; mail could get lost that way. Both procmail and # sendmail (and all of the MDAs like exim that might be lurking under # a sendmail alias) do the right thing in this circumstance. # AC_PATH_PROG(procmail, procmail, "", $PATH:/usr/sbin) -if test "$procmail" -then - echo "Found procmail, will use it as a fallback MDA." - AC_DEFINE(FALLBACK_MDA, "$procmail -d %T") -else - AC_PATH_PROG(sendmail, sendmail, "", $PATH:/usr/sbin) - if test "$sendmail" - then - echo "Found sendmail, will use it as a fallback MDA." - AC_DEFINE(FALLBACK_MDA, "$sendmail %T") - fi -fi +AC_PATH_PROG(sendmail, sendmail, "", $PATH:/usr/sbin) + +### use option --disable-fallback to disable fallback MDA +### use option --enable-fallback=procmail or +### --enable-fallback=sendmail to select +AC_ARG_ENABLE(fallback, + [ --enable-fallback=procmail enable procmail as fallback (default) + --enable-fallback=sendmail enable /usr/sbin/sendmail as fallback + --enable-fallback=no disable fallback],,[enable_fallback=auto]) + +case "$enable_fallback" in + sendmail) if test -z "$sendmail" ; then + AC_ERROR([Sendmail selected as fallback, but not found]) + #not reached + fi + AC_DEFINE(FALLBACK_MDA, "$sendmail %T") + echo "Will use $sendmail as fallback MDA." + ;; + procmail) if test -z "$procmail" ; then + AC_ERROR([procmail selected as fallback, but not found]) + #not reached + fi + AC_DEFINE(FALLBACK_MDA, "$procmail -d %T") + echo "Will use $procmail as fallback MDA." + ;; + no|unset) echo "Will not use a fallback MDA" + ;; + auto|yes|set) if test -n "$procmail" ; then + AC_DEFINE(FALLBACK_MDA, "$procmail -d %T") + echo "Will use $procmail as fallback MDA." + elif test -n "$sendmail" ; then + AC_DEFINE(FALLBACK_MDA, "$sendmail %T") + echo "Will use $sendmail as fallback MDA." + else echo "No fallback MDA available." + fi + ;; + *) AC_ERROR([unkown value for --enable-fallback given: $enable_fallback]) + #notreached + ;; +esac AC_CHECK_SIZEOF(short) AC_CHECK_SIZEOF(int) |