[Pkg-emacsen-addons] Bug#917052: elpa-xml-rpc: Hangs infinitely when compiling for emacs 1:26.1+1-2

[Axel Beckert]

Package: elpa-xml-rpc
Version: 1.6.12-2
Severity: serious

Hi,

when upgrading emacs from 1:25.2+1-11 to 1:26.1+1-2, it hangs
infinitely at "install/xml-rpc-1.6.12: byte-compiling for emacs".

Relevant parts of an "ps auxwwwf" output:

root      5644  0.0  0.0   2392   768 pts/4    S+   00:54   0:00                  \_ /bin/sh /var/lib/dpkg/info/emacs-gtk.postinst configure 1:25.2+1-11
root      5647  0.0  0.0  19168 11604 pts/4    S+   00:54   0:00                      \_ /usr/bin/perl -w /usr/lib/emacsen-common/emacs-install emacs
root      5893  0.0  0.0      0     0 pts/4    Z+   00:54   0:00                          \_ [emacs-install] <defunct>
root      6179  0.0  0.0   2392   772 pts/4    S+   00:55   0:00                          \_ /bin/sh /usr/lib/emacsen-common/packages/install/elpa-xml-rpc emacs
root      6182  0.0  0.0   2392   108 pts/4    S+   00:55   0:00                              \_ /bin/sh /usr/lib/emacsen-common/packages/install/elpa-xml-rpc emacs
root      6183 99.9  0.0 274740 41712 pts/4    Rl+  00:55  18:39                                  \_ emacs -q -batch -l package --eval (add-to-list 'package-directory-list "/usr/share/emacs/site-lisp/elpa-src") -f package-initialize -f batch-byte-compile xml-rpc-autoloads.el xml-rpc-pkg.el xml-rpc.el

Please note the over 18 minutes of CPU time of process 6183.

Please feel free to reassign this to emacs in case you think this is
an issue with emacs 26.1 itself and not with this elpa package.

P.S.: This looks very similar to https://bugs.debian.org/917050
against elpa-markdown-mode.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (600, 'testing'), (500, 'unstable-debug'), (500, 'buildd-unstable'), (110, 'experimental'), (1, 'experimental-debug'), (1, 'buildd-experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.18.0-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
LSM: AppArmor: enabled

Versions of packages elpa-xml-rpc depends on:
ii  emacsen-common  3.0.4

Versions of packages elpa-xml-rpc recommends:
iu  emacs              1:26.1+1-2
ih  emacs-gtk [emacs]  1:26.1+1-2

elpa-xml-rpc suggests no packages.

-- no debconf information