+# getloadvg is present in libc on glibc >= 2.2, MacOS X, FreeBSD >= 2.0,
+# NetBSD >= 0.9, OpenBSD >= 2.0, Solaris >= 7.
+HAVE_GETLOADAVG=1
+AC_CHECK_FUNC([getloadavg], [],
+ [gl_have_func=no
+
+ # Some systems with -lutil have (and need) -lkvm as well, some do not.
+ # On Solaris, -lkvm requires nlist from -lelf, so check that first
+ # to get the right answer into the cache.
+ # For kstat on solaris, we need to test for libelf and libkvm to force the
+ # definition of SVR4 below.
+ if test $gl_have_func = no; then
+ AC_CHECK_LIB([elf], [elf_begin], [LIBS="-lelf $LIBS"])
+ AC_CHECK_LIB([kvm], [kvm_open], [LIBS="-lkvm $LIBS"])
+ # Check for the 4.4BSD definition of getloadavg.
+ AC_CHECK_LIB([util], [getloadavg],
+ [LIBS="-lutil $LIBS" gl_have_func=yes])
+ fi
+
+ if test $gl_have_func = no; then
+ # There is a commonly available library for RS/6000 AIX.
+ # Since it is not a standard part of AIX, it might be installed locally.
+ gl_getloadavg_LIBS=$LIBS
+ LIBS="-L/usr/local/lib $LIBS"
+ AC_CHECK_LIB([getloadavg], [getloadavg],
+ [LIBS="-lgetloadavg $LIBS" gl_have_func=yes],
+ [LIBS=$gl_getloadavg_LIBS])
+ fi
+
+ # Set up the replacement function if necessary.
+ if test $gl_have_func = no; then
+ HAVE_GETLOADAVG=0
+ fi])
+
+if test "x$gl_save_LIBS" = x; then
+ GETLOADAVG_LIBS=$LIBS
+else
+ GETLOADAVG_LIBS=`echo "$LIBS" | sed "s!$gl_save_LIBS!!"`
+fi
+LIBS=$gl_save_LIBS
+
+AC_SUBST([GETLOADAVG_LIBS])dnl
+
+# Test whether the system declares getloadavg. Solaris has the function
+# but declares it in <sys/loadavg.h>, not <stdlib.h>.
+AC_CHECK_HEADERS([sys/loadavg.h])
+if test $ac_cv_header_sys_loadavg_h = yes; then
+ HAVE_SYS_LOADAVG_H=1
+else
+ HAVE_SYS_LOADAVG_H=0
+fi
+AC_CHECK_DECL([getloadavg], [], [HAVE_DECL_GETLOADAVG=0],
+ [#if HAVE_SYS_LOADAVG_H
+ # include <sys/loadavg.h>
+ #endif
+ #include <stdlib.h>])
+])# gl_GETLOADAVG
+
+
+# gl_PREREQ_GETLOADAVG
+# --------------------
+# Set up the AC_LIBOBJ replacement of `getloadavg'.
+AC_DEFUN([gl_PREREQ_GETLOADAVG],
+[
+# Figure out what our getloadavg.c needs.