# Checks for libraries.
AC_CHECK_LIB(z, gzread)
AC_CHECK_LIB(xml2, xmlParseFile)
+AC_CHECK_LIB(pq, PQconnectdb)
AC_CHECK_LIB(AXE, main, , AC_MSG_ERROR(AXE Library is not installed))
-PKG_CHECK_MODULES([LIBPQXX], [libpqxx >= 2.5.1])
+PKG_CHECK_MODULES([LIBPQXX], [libpqxx >= 4.0.1])
AC_SUBST(LIBPQXX_CFLAGS)
AC_SUBST(LIBPQXX_LIBS)