I downloaded curl 7.61.0 today and tried to build it per the flags in my
statically linked application:

$ ./configure --without-libidn
$ make
$ make test

Test 1139 failed, so I reran it individually:

$ cd tests
$ ./runtests.pl 1139

It reported:

test 1139...[Verify that all libcurl options have man pages]

"tests/log/stderr1139" had:

--disallow-username-in-url is not in curl.1 (but in tool_getparam.c
tool_help.c)
--haproxy-protocol is not in curl.1 (but in tool_getparam.c tool_help.c)

"tests/log/curlverout.log" had (transcribing manually, so no flames
about typos please):

curl 7.61.0 (x86_64-pc-linux-gnu) libcurl/7.61.0 OpenSSL/1.0.1e zlib/1.2.3
Release-Date: 2018-07-11
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps
pop3 pop3s rtsp smb smbs smtp smtps telnet tftp
Features: AsynchDNS IPv6 Largefile NTLM NTLM_WB SSL libz UnixSockets
HTTPS-proxy

"uname -a" (CentOS 6.9 in a VirtualBox VM running under Windows 10)
reported:

Linux pathfinder-vm 2.6.32-754.2.1.el6.x86_64 #1 SMP Fri jul 13 12:50:12
UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

The "--without-libidn" flag seems to be the culprit; if I rerun the
build/test sequence with no configuration flags, test 1139 passes. I'm
not familiar with the innards of curl, so I didn't try to trace the cause.

Thanks in advance.

-- 
     David Chapman      dcchapman_at_acm.org
     Chapman Consulting -- San Jose, CA
     EDA Software Developer, Expert Witness
     www.chapman-consulting-sj.com
     2018 Chair, IEEE Consultants' Network of Silicon Valley
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