libsystemd not found an error

[Yoshi Horigome]

Hello,

Attempting to configure r4762 is now "libsystemd not found".
However, we have confirmed that libsystemd related packages are
installed as follows.

checking for libexpat... found in /usr
checking for expat.h... yes
checking whether XML_StopParser is declared... yes
checking for libhiredis... checking for SYSTEMD... no
checking for SYSTEMD_DAEMON... no
configure: error: systemd enabled but libsystemd not found

$ dpkg -l | grep libsystemd
ii  libsystemd-dev:armhf              232-25+deb9u3
armhf        systemd utility library - development files
ii  libsystemd0:armhf                 232-25+deb9u3
armhf        systemd utility library

environment:
$ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 9 (stretch)"
NAME="Debian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

$ uname -sr
Linux 4.14.18-sunxi

At least, v1.7.3 confirms that configure will succeed.
It seems that the periphery of pkg - config has been modified with
r4757 etc, but is there anything related to this area?
# I'm sorry. I had no ability to read the configure file.

config.log
https://pastebin.com/xd6QTbJ9

Best regards.