bug#38171: guix lynx can not connect, ArchLinux lynx can, why?

[Bengt Richter]

Hi Guix,

Sorry about the vterm escapes, but perhaps it's easy to see for someone anyway?

Both lynxes started and both use the same lynx.cfg and lynx.lss in /etc/.
I selected a bookmark link to duckduckgo and /usr/bin/lynx got there, but guix 
lynx did not.
Either way, I just exited lynx, so make the strace as small as possible.

The first lines from the greps show a TLS difference -- (why? different 
internal defaults?)
and is that the explanation? Can I fix it with /etc/lynx.cfg?

guix describe:
Generation 22   Nov 08 2019 17:49:27    (current)
  guix be4f2d9
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: be4f2d9451344701599b6dc000c0345ce53b2128

The respective lynxes:
    /gnu/store/7vwm0ly476k7p2spbwxsqr2p7khg69yc-lynx-2.8.9rel.1/bin/lynx:
    ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, 
interpreter
    
/gnu/store/h90vnqw0nwd0hhm1l5dgxsdrigddfmq4-glibc-2.28/lib/ld-linux-x86-64.so.2,
 for GNU/Linux 2.6.32, not stripped

    /usr/bin/lynx:
    ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically 
linked, interpreter
    /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, 
BuildID[sha1]=9a1efceaaead8942151b0719125d63cbd4e296cf, stripped

Results:

--8<----(guix lynx)-----------cut here---------------start------------->8---
[12:07 ~/bs]$ egrep -E '(Alert|TLS|HTTP)' lynx-gx.strace
122385 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mSecure 256-bit TLS1.3 
(ECDHE_RSA_AES_256_GCM_SHA384) HTTP co"..., 91) = 91
122385 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mnding HTTP 
request.\33[K", 42) = 42
122385 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mHTTP request sent; w", 
40) = 40
122385 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[41mAlert!: Unexpected 
network read error; connection aborted.\33["..., 81) = 81
122385 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[41mAlert!: Unable to 
access document.\33[K", 57) = 57
--8<----(guix lynx)-----------cut here---------------end--------------->8---

--8<----(ArchLinux lynx)-----------cut 
here---------------start------------->8---
[12:07 ~/bs]$ egrep -E '(Alert|TLS|HTTP)' lynx-usr.strace
122308 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mSecure 256-bit TLSv1.3 
(TLS_AES_256_GCM_SHA384) HTTP connect"..., 86) = 86
122308 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mnding HTTP request.", 
39) = 39
122308 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mHTTP request sent; w", 
40) = 40
122308 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mHTTP/1.1 302 Moved 
Temporarily", 50) = 50
122308 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mSecure 256-bit TLSv1.3 
(TLS_AES_256_GCM_SHA384) HTTP connect"..., 86) = 86
122308 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mnding HTTP request.", 
39) = 39
122308 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mHTTP request sent; w", 
40) = 40
122308 write(1</dev/tty3>, "\33[0;10;1m\17\33[33m\33[44mHTTP/1.1 200 OK\33[K", 
38) = 38
--8<----(ArchLinux lynx)-----------cut 
here---------------end--------------->8---

--8<----(strace cmds)-----------cut here---------------start------------->8---
[12:07 ~/bs]$ # above from: strace -s 80 -yfo lynx-gx.strace lynx
[12:15 ~/bs]$ #        and: strace -s 80 -yfo lynx-usr.strace /usr/bin/lynx
--8<----(strace cmds)-----------cut here---------------end--------------->8---

I've got the whole strace logs still, in case you want me to grep out something 
more.
TIA
-- 
Regards,
Bengt Richter