diff --git a/configure.ac b/configure.ac
index a9c7e6d..3e8773d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,20 +30,11 @@
 
 # Checks for libraries.
 PKG_CHECK_MODULES([SYSTEMD], [libsystemd >= 221])
-
-PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus],,\
-AC_MSG_ERROR(["Requires sdbusplus package."]))
-
-PKG_CHECK_MODULES([SDEVENTPLUS], [sdeventplus],,\
-AC_MSG_ERROR(["Requires sdeventplus package."]))
-
+PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus])
+PKG_CHECK_MODULES([SDEVENTPLUS], [sdeventplus])
 AC_PATH_PROG([SDBUSPLUSPLUS], [sdbus++])
-
-PKG_CHECK_MODULES([PHOSPHOR_LOGGING], [phosphor-logging],,\
-AC_MSG_ERROR(["Requires phosphor-logging package."]))
-
-PKG_CHECK_MODULES([PHOSPHOR_DBUS_INTERFACES], [phosphor-dbus-interfaces],\
-[], [AC_MSG_ERROR(["phosphor-dbus-interfaces required and not found."])])
+PKG_CHECK_MODULES([PHOSPHOR_LOGGING], [phosphor-logging])
+PKG_CHECK_MODULES([PHOSPHOR_DBUS_INTERFACES], [phosphor-dbus-interfaces])
 
 # Checks for header files.
 AC_CHECK_HEADER(systemd/sd-bus.h, ,\