mail/mailman: fix empty group/user name regression in 2.1.39_2

...and drop files/patch-configure-in, which is no longer needed;
neither is autoreconf needed to be reinstated.

We can cheat the test -z "$VAR" inside the MM_FIND_{GROUP,USER}...
configure[.in] macros by putting the proper contents into the
proper environment variables.

To fix the regression in...
PR:		274991
Reported by:	leres@

mail/mailman/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	mailman
 DISTVERSION=	2.1.39
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	mail
 MASTER_SITES=	GNU \
 		SF/${PORTNAME}/Mailman%202.1%20%28stable%29/${PORTVERSION} \
@@ -34,6 +34,12 @@ CONFIGURE_ARGS+=--with-python=${PYTHON_CMD} \
 		--with-permcheck=no \
 		--with-mailhost=localhost \
 		--with-urlhost=localhost
+# setting these defeats the automated check for users in configure[.in], as of 2.1.39,
+# implemented in MM_FIND_* macros:
+CONFIGURE_ENV+=	CGI_GROUP=${CGI_GID} \
+		MAIL_GROUP=${MAIL_GID} \
+		MAILMAN_USER=${MM_USERNAME} \
+		MAILMAN_GROUP=${MM_GROUPNAME}
 
 CONFLICTS=	ja-mailman-2.1.* mailman*exim* mailman*postfix*
 

mail/mailman/files/patch-configure-in

@@ -1,67 +0,0 @@
-Mailman tests for existence of users during configure -- unfortunately
-this creates a problem; we create the users just before install.
-
-We remove the testing part.
-
---- configure.in.bak	2010-09-20 19:18:27.000000000 +0100
-+++ configure.in	2011-06-14 20:20:29.209438957 +0100
-@@ -311,28 +311,7 @@
- # $2 == user id to check for
- AC_SUBST($1)
- changequote(,)
--if test -z "$$1"
--then
--    cat > conftest.py <<EOF
--import grp
--gid = ''
--for group in "$2".split():
--    try:
--        try:
--            gname = grp.getgrgid(int(group))[0]
--            break
--        except ValueError:
--            gname = grp.getgrnam(group)[0]
--            break
--    except KeyError:
--        gname = ''
--fp = open("conftest.out", "w")
--fp.write("%s\n" % gname)
--fp.close()
--EOF
--    $PYTHON conftest.py
--    $1=`cat conftest.out`
--fi
-+$1=$2
- changequote([, ])
- rm -f conftest.out conftest.py])
- 
-@@ -343,28 +322,7 @@
- # $2 == user id to check for
- AC_SUBST($1)
- changequote(,)
--if test -z "$$1"
--then
--    cat > conftest.py <<EOF
--import pwd
--uid = ''
--for user in "$2".split():
--    try:
--        try:
--            uname = pwd.getpwuid(int(user))[0]
--            break
--        except ValueError:
--            uname = pwd.getpwnam(user)[0]
--            break
--    except KeyError:
--        uname = ''
--fp = open("conftest.out", "w")
--fp.write("%s\n" % uname)
--fp.close()
--EOF
--    $PYTHON conftest.py
--    $1=`cat conftest.out`
--fi
-+$1=$2
- changequote([, ])
- rm -f conftest.out conftest.py])
-