@@ -4,9 +4,13 @@
 
 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_MAKE_SET
 AC_PROG_INSTALL
+
+AC_CHECK_MEMBER([struct sysinfo.mem_unit], [
+	AC_DEFINE([HAVE_SYSINFO_MEM_UNIT], [1], [Define if your sysinfo structure has a mem_info unit])
+],, [[#include <sys/sysinfo.h>]])
 
 DC_ASK_STATGRAB
 
 AC_OUTPUT(Makefile)