Test 041_checkpoint_at_promote.pl faild in installcheck due to missing injection_points

Hi!

After rebasing one of my old patches, I'm hit to a problem with the
installcheck test for 041_checkpoint_at_promote.pl.
At first, I thought it was something wrong with my patch, although it
doesn't relate to this part of the Postgres.
Then I decided to do the same run but on current master and got the same
result.

Here is my configure:
SRC="../postgres"
TRG=`pwd`

LINUX_CONFIGURE_FEATURES="
--without-llvm
--with-tcl --with-tclconfig=/usr/lib/tcl8.6/ --with-perl
--with-python --with-gssapi --with-pam --with-ldap --with-selinux
--with-systemd --with-uuid=ossp --with-libxml --with-libxslt
--with-zstd
--with-ssl=openssl
"

$SRC/configure \
-C \
--prefix=$TRG/"pgsql" \
--enable-debug --enable-tap-tests --enable-depend --enable-cassert \
--enable-injection-points --enable-nls \
$LINUX_CONFIGURE_FEATURES \
CC="ccache clang" CXX="ccache clang++" \
CFLAGS="-Og -ggdb -fsanitize-recover=all" \
CXXFLAGS="-Og -ggdb -fsanitize-recover=all"

And here is my run:
$ time make PROVE_TESTS=t/041_checkpoint_at_promote.pl installcheck -C
src/test/recovery
...
# Postmaster PID for node "standby1" is 820439
error running SQL: 'psql:<stdin>:1: ERROR: extension "injection_points" is
not available
DETAIL: Could not open extension control file
"/home/omg/proj/build/pgsql/share/extension/injection_points.control": No
such file or directory.
HINT: The extension must first be installed on the system where PostgreSQL
is running.'
while running 'psql -XAtq -d port=17154 host=/tmp/xkTLcw1tDb
dbname='postgres' -f - -v ON_ERROR_STOP=1' with sql 'CREATE EXTENSION
injection_points;' at
/home/omg/proj/build/../postgres/src/test/perl/PostgreSQL/Test/Cluster.pm
line 2140.
# Postmaster PID for node "master" is 820423
...

Cleary, Postgres can't find injection_points extension.
Am I doing something wrong, or it is a problem with injection points extension
itself?

--
Best regards,
Maxim Orlov.