ports/150783: mail/qpopper: fails to configure ocasionally

[Hiroto Kagotani]

>Number:         150783
>Category:       ports
>Synopsis:       mail/qpopper: fails to configure ocasionally
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Sep 21 11:10:06 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Hiroto Kagotani
>Release:        8.1-RELEASE-p1
>Organization:
>Environment:
FreeBSD myhost.mydomain 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:55:53 UTC 2010     root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
Ocasionally, make configure in /usr/ports/mail/qpopper fails saying:

===>  Configuring for qpopper-4.0.9_3
checking whether make sets $(MAKE)... yes
checking for gcc... cc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether cc accepts -g... yes
checking for cc option to accept ANSI C... none needed
checking for library containing strerror... none required
checking for bison... bison -y
checking for flex... flex
checking for yywrap in -lfl... yes
checking lex output file root... lex.yy
checking whether yytext is a pointer... yes
checking for ar... ar
checking for ranlib... ranlib
checking for a BSD-compatible install... /usr/bin/install -c -o root -g wheel
checking for gperf... gperf
checking for gcc version 2.7.2.3... no
checking if gcc supports __attribute__ (format) ... yes
checking if ar chokes on -r... no
checking for getspnam... no
checking for getspnam in -lshadow... no
Will NOT compile in debugging code
APOP is enabled.
Will NOT delete temp drop files
Denying access to users listed in /usr/local/etc/qpopper/popusers
Attempting to use OpenSSL in "/usr"
./configure: 10945: Syntax error: end of file unexpected (expecting "fi")
===>  Script "configure" failed unexpectedly.

In my environment, this happens a couple of times per 10 trials.
In the failed case, I see lines in configure script:
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.57.
although I am using autoconf-2.67.

I guess the problem is caused by conflicting patches
in files/patch-configure.in and in qpopper4.0.9-ipv6-20060626.diff.gz.
>How-To-Repeat:
Repeat
make clean; make configure
in /usr/ports/mail/qpopper several times.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: