Call to `openssl` causes Emacs to freeze

[Alexis <flexibeast@gmail.com>]

Hi all,

Context: manually-compiled Emacs 24.5 on Debian Jessie x86_64.

For a while i'd been facing the problem that, when i opened an 
HTML email (erk) in mu4e, Emacs would freeze; my only recourse was 
to terminate the Emacs process.

Today i worked out that a call to `openssl` is the source of the 
problem: installing the `gnutls-bin` package and modifying the 
value of the variable `tls-program` to only call `gnutls-cli` 
fixed the issue.

Modifying `tls-program` to add the "-no_ssl3" switch to the 
`openssl` invocation had not helped.

Of course, OpenSSL's internals are apparently a wretched hive of 
scum, so i'm wondering if anyone else has faced this problem? Is 
this a known issue?


Alexis.