diff --git a/src/core/systemd.pc.in b/src/core/systemd.pc.in
index 8331832c7a2..da7e74ed7bc 100644
--- a/src/core/systemd.pc.in
+++ b/src/core/systemd.pc.in
@@ -7,36 +7,93 @@
 #  the Free Software Foundation; either version 2.1 of the License, or
 #  (at your option) any later version.
 
+# Names with prefixes are prefered, and the run-together names should be
+# considered deprecated (though there is no plan to remove them). New names
+# shall have underscores.
+
 prefix=@prefix@
-rootprefix=@rootprefix_noslash@
-sysconfdir=@sysconfdir@
-systemdutildir=${rootprefix}/lib/systemd
-systemdsystemunitdir=${rootprefix}/lib/systemd/system
-systemdsystempresetdir=${rootprefix}/lib/systemd/system-preset
-systemduserunitdir=${prefix}/lib/systemd/user
-systemduserpresetdir=${prefix}/lib/systemd/user-preset
-systemdsystemconfdir=${sysconfdir}/systemd/system
-systemduserconfdir=${sysconfdir}/systemd/user
-systemdsystemunitpath=${systemdsystemconfdir}:/etc/systemd/system:/run/systemd/system:/usr/local/lib/systemd/system:${systemdsystemunitdir}:/usr/lib/systemd/system:/lib/systemd/system
-systemduserunitpath=${systemduserconfdir}:/etc/systemd/user:/run/systemd/user:/usr/local/lib/systemd/user:/usr/local/share/systemd/user:${systemduserunitdir}:/usr/lib/systemd/user:/usr/share/systemd/user
-systemdsystemgeneratordir=${rootprefix}/lib/systemd/system-generators
-systemdusergeneratordir=${prefix}/lib/systemd/user-generators
-systemdsystemgeneratorpath=/run/systemd/system-generators:/etc/systemd/system-generators:/usr/local/lib/systemd/system-generators:${systemdsystemgeneratordir}
-systemdusergeneratorpath=/run/systemd/user-generators:/etc/systemd/user-generators:/usr/local/lib/systemd/user-generators:${systemdusergeneratordir}
-systemdsleepdir=${rootprefix}/lib/systemd/system-sleep
-systemdshutdowndir=${rootprefix}/lib/systemd/system-shutdown
-tmpfilesdir=${prefix}/lib/tmpfiles.d
-sysusersdir=${prefix}/lib/sysusers.d
-sysctldir=${prefix}/lib/sysctl.d
-binfmtdir=${prefix}/lib/binfmt.d
-modulesloaddir=${prefix}/lib/modules-load.d
-catalogdir=${prefix}/lib/systemd/catalog
-systemuidmax=@systemuidmax@
-systemgidmax=@systemgidmax@
-dynamicuidmin=@dynamicuidmin@
-dynamicuidmax=@dynamicuidmax@
-containeruidbasemin=@containeruidbasemin@
-containeruidbasemax=@containeruidbasemax@
+root_prefix=@rootprefix_noslash@
+rootprefix=${root_prefix}
+sysconf_dir=@sysconfdir@
+sysconfdir=${sysconf_dir}
+
+systemd_util_dir=${root_prefix}/lib/systemd
+systemdutildir=${systemd_util_dir}
+
+systemd_system_unit_dir=${rootprefix}/lib/systemd/system
+systemdsystemunitdir=${systemd_system_unit_dir}
+
+systemd_system_preset_dir=${rootprefix}/lib/systemd/system-preset
+systemdsystempresetdir=${systemd_system_preset_dir}
+
+systemd_user_unit_dir=${prefix}/lib/systemd/user
+systemduserunitdir=${systemd_user_unit_dir}
+
+systemd_user_preset_dir=${prefix}/lib/systemd/user-preset
+systemduserpresetdir=${systemd_user_preset_dir}
+
+systemd_system_conf_dir=${sysconfdir}/systemd/system
+systemdsystemconfdir=${systemd_system_conf_dir}
+
+systemd_user_conf_dir=${sysconfdir}/systemd/user
+systemduserconfdir=${systemd_user_conf_dir}
+
+systemd_system_unit_path=${systemd_system_conf_dir}:/etc/systemd/system:/run/systemd/system:/usr/local/lib/systemd/system:${systemd_system_unit_dir}:/usr/lib/systemd/system:/lib/systemd/system
+systemdsystemunitpath=${systemd_system_unit_path}
+
+systemd_user_unit_path=${systemd_user_conf_dir}:/etc/systemd/user:/run/systemd/user:/usr/local/lib/systemd/user:/usr/local/share/systemd/user:${systemd_user_unit_dir}:/usr/lib/systemd/user:/usr/share/systemd/user
+systemduserunitpath=${systemd_user_unit_path}
+
+systemd_system_generator_dir=${root_prefix}/lib/systemd/system-generators
+systemdsystemgeneratordir=${systemd_system_generator_dir}
+
+systemd_user_generator_dir=${prefix}/lib/systemd/user-generators
+systemdusergeneratordir=${systemd_user_generator_dir}
+
+systemd_system_generator_path=/run/systemd/system-generators:/etc/systemd/system-generators:/usr/local/lib/systemd/system-generators:${systemd_system_generator_dir}
+systemdsystemgeneratorpath=${systemd_system_generator_path}
+
+systemd_user_generator_path=/run/systemd/user-generators:/etc/systemd/user-generators:/usr/local/lib/systemd/user-generators:${systemd_user_generator_dir}
+systemdusergeneratorpath=${systemd_user_generator_path}
+
+systemd_sleep_dir=${root_prefix}/lib/systemd/system-sleep
+systemdsleepdir=${systemd_sleep_dir}
+
+systemd_shutdown_dir=${root_prefix}/lib/systemd/system-shutdown
+systemdshutdowndir=${systemd_shutdown_dir}
+
+tmpfiles_dir=${prefix}/lib/tmpfiles.d
+tmpfilesdir=${tmpfiles_dir}
+
+sysusers_dir=${prefix}/lib/sysusers.d
+sysusersdir=${sysusers_dir}
+
+sysctl_dir=${prefix}/lib/sysctl.d
+sysctldir=${sysctl_dir}
+
+binfmt_dir=${prefix}/lib/binfmt.d
+binfmtdir=${binfmt_dir}
+
+modules_load_dir=${prefix}/lib/modules-load.d
+modulesloaddir=${modules_load_dir}
+
+catalog_dir=${prefix}/lib/systemd/catalog
+catalogdir=${catalog_dir}
+
+system_uid_max=@systemuidmax@
+systemuidmax=${system_uid_max}
+system_gid_max=@systemgidmax@
+systemgidmax=${system_gid_max}
+
+dynamic_uid_min=@dynamicuidmin@
+dynamicuidmin=${dynamic_uid_min}
+dynamic_uid_max=@dynamicuidmax@
+dynamicuidmax=${dynamic_uid_max}
+
+container_uid_base_min=@containeruidbasemin@
+containeruidbasemin=${container_uid_base_min}
+container_uid_base_max=@containeruidbasemax@
+containeruidbasemax=${container_uid_base_max}
 
 Name: systemd
 Description: systemd System and Service Manager
diff --git a/src/udev/udev.pc.in b/src/udev/udev.pc.in
index 5acbb2d01a9..7b4f4006b56 100644
--- a/src/udev/udev.pc.in
+++ b/src/udev/udev.pc.in
@@ -2,4 +2,5 @@ Name: udev
 Description: udev
 Version: @PROJECT_VERSION@
 
-udevdir=@udevlibexecdir@
+udev_dir=@udevlibexecdir@
+udevdir=${udev_dir}