dnl Check support for 64 bit file offsets.
AC_SYS_LARGEFILE
+dnl Check for required packages using pkg-config.
+PKG_CHECK_MODULES([HOSTINFOD],[apr-1 >= 1.3])
+
dnl Produce output files.
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([Makefile hostinfod/Makefile])