[systemd-devel] Trouble building v225 on Ubuntu 15.10

[Tabor Kelly]

Hello,

I'm trying to get systemd v225 building on Ubuntu 15.10. When I run
autogen.sh I get the following output:

configure.ac:686: warning: macro 'AM_PATH_LIBGCRYPT' not found in library
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `build-aux'.
libtoolize: linking file `build-aux/ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'.
libtoolize: linking file `m4/libtool.m4'
libtoolize: linking file `m4/ltoptions.m4'
libtoolize: linking file `m4/ltsugar.m4'
libtoolize: linking file `m4/ltversion.m4'
libtoolize: linking file `m4/lt~obsolete.m4'
configure.ac:686: warning: macro 'AM_PATH_LIBGCRYPT' not found in library
configure.ac:49: error: possibly undefined macro: AC_MSG_ERROR
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:686: error: possibly undefined macro: AM_PATH_LIBGCRYPT
autoreconf: /usr/bin/autoconf failed with exit status: 1

I have the following versions of various required libraries and tools
(installed as Ubuntu packages):

glibc - 2.21
libcap - 1.7.4
libmount/util-linux - 2.26.2
pkg-config - 0.28
docbook-xsl - 1.78.1
xsltproc - 1.1.28
automake - 1.15
autoconf - 2.69
libtool - 2.4.2
intltool - 0.51.0
gperf - 3.0.4

Any input would be greatly appreciated.

Thanks,

Tabor