--- /dev/null
+# Check for getloadavg.
+
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2002, 2003,
+# 2006 Free Software Foundation, Inc.
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# Autoconf defines AC_FUNC_GETLOADAVG, but that is obsolescent.
+# New applications should use gl_GETLOADAVG instead.
+
+# gl_PREREQ_GETLOADAVG
+# --------------------
+# Set up the AC_LIBOBJ replacement of `getloadavg'.
+m4_define([gl_PREREQ_GETLOADAVG],
+[AC_LIBOBJ(getloadavg)
+AC_DEFINE(C_GETLOADAVG, 1, [Define to 1 if using `getloadavg.c'.])
+# Figure out what our getloadavg.c needs.
+gl_have_func=no
+AC_CHECK_HEADER(sys/dg_sys_info.h,
+[gl_have_func=yes
+ AC_DEFINE(DGUX, 1, [Define to 1 for DGUX with <sys/dg_sys_info.h>.])
+ AC_CHECK_LIB(dgc, dg_sys_info)])
+
+# We cannot check for <dwarf.h>, because Solaris 2 does not use dwarf (it
+# uses stabs), but it is still SVR4. We cannot check for <elf.h> because
+# Irix 4.0.5F has the header but not the library.
+if test $gl_have_func = no && test "$ac_cv_lib_elf_elf_begin" = yes; then
+ gl_have_func=yes
+ AC_DEFINE(SVR4, 1, [Define to 1 on System V Release 4.])
+fi
+
+if test $gl_have_func = no; then
+ AC_CHECK_HEADER(inq_stats/cpustats.h,
+ [gl_have_func=yes
+ AC_DEFINE(UMAX, 1, [Define to 1 for Encore UMAX.])
+ AC_DEFINE(UMAX4_3, 1,
+ [Define to 1 for Encore UMAX 4.3 that has <inq_status/cpustats.h>
+ instead of <sys/cpustats.h>.])])
+fi
+
+if test $gl_have_func = no; then
+ AC_CHECK_HEADER(sys/cpustats.h,
+ [gl_have_func=yes; AC_DEFINE(UMAX)])
+fi
+
+if test $gl_have_func = no; then
+ AC_CHECK_HEADERS(mach/mach.h)
+fi
+
+AC_CHECK_HEADERS(nlist.h,
+[AC_CHECK_MEMBERS([struct nlist.n_un.n_name],
+ [AC_DEFINE(NLIST_NAME_UNION, 1,
+ [Define to 1 if your `struct nlist' has an
+ `n_un' member. Obsolete, depend on
+ `HAVE_STRUCT_NLIST_N_UN_N_NAME])], [],
+ [@%:@include <nlist.h>])
+])dnl
+])# gl_PREREQ_GETLOADAVG
+
+
+# gl_GETLOADAVG
+# -------------
+AN_FUNCTION([getloadavg], [gl_GETLOADAVG])
+AC_DEFUN([gl_GETLOADAVG],
+[gl_have_func=no # yes means we've found a way to get the load average.
+
+# Make sure getloadavg.c is where it belongs, at configure-time.
+test -f "$srcdir/$ac_config_libobj_dir/getloadavg.c" ||
+ AC_MSG_ERROR([$srcdir/$ac_config_libobj_dir/getloadavg.c is missing])
+
+gl_save_LIBS=$LIBS
+
+# Check for getloadavg, but be sure not to touch the cache variable.
+(AC_CHECK_FUNC(getloadavg, exit 0, exit 1)) && gl_have_func=yes
+
+# On HPUX9, an unprivileged user can get load averages through this function.
+AC_CHECK_FUNCS(pstat_getdynamic)
+
+# Solaris has libkstat which does not require root.
+AC_CHECK_LIB(kstat, kstat_open)
+test $ac_cv_lib_kstat_kstat_open = yes && gl_have_func=yes
+
+# 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 libelf to force the definition of SVR4 below.
+if test $gl_have_func = no; then
+ AC_CHECK_LIB(elf, elf_begin, LIBS="-lelf $LIBS")
+fi
+if test $gl_have_func = no; then
+ 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 gl_cv_func_getloadavg_setgid=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 $LIBS"], [LIBS=$gl_getloadavg_LIBS])
+fi
+
+# Make sure it is really in the library, if we think we found it,
+# otherwise set up the replacement function.
+AC_CHECK_FUNCS(getloadavg, [],
+ [gl_PREREQ_GETLOADAVG])
+
+# Some definitions of getloadavg require that the program be installed setgid.
+AC_CACHE_CHECK(whether getloadavg requires setgid,
+ gl_cv_func_getloadavg_setgid,
+[AC_EGREP_CPP([Yowza Am I SETGID yet],
+[#define gl_GETLOADAVG
+#include "$srcdir/$ac_config_libobj_dir/getloadavg.c"
+#ifdef LDAV_PRIVILEGED
+Yowza Am I SETGID yet
+#endif
+],
+ gl_cv_func_getloadavg_setgid=yes,
+ gl_cv_func_getloadavg_setgid=no)])
+if test $gl_cv_func_getloadavg_setgid = yes; then
+ NEED_SETGID=true
+ AC_DEFINE(GETLOADAVG_PRIVILEGED, 1,
+ [Define to 1 if the `getloadavg' function needs to be run setuid
+ or setgid.])
+else
+ NEED_SETGID=false
+fi
+AC_SUBST(NEED_SETGID)dnl
+
+if test $gl_cv_func_getloadavg_setgid = yes; then
+ AC_CACHE_CHECK(group of /dev/kmem, gl_cv_group_kmem,
+[ # On Solaris, /dev/kmem is a symlink. Get info on the real file.
+ ac_ls_output=`ls -lgL /dev/kmem 2>/dev/null`
+ # If we got an error (system does not support symlinks), try without -L.
+ test -z "$ac_ls_output" && ac_ls_output=`ls -lg /dev/kmem`
+ gl_cv_group_kmem=`echo $ac_ls_output \
+ | sed -ne ['s/[ ][ ]*/ /g;
+ s/^.[sSrwx-]* *[0-9]* *\([^0-9]*\) *.*/\1/;
+ / /s/.* //;p;']`
+])
+ AC_SUBST(KMEM_GROUP, $gl_cv_group_kmem)dnl
+fi
+if test "x$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
+])# gl_GETLOADAVG
projects / gnulib.git / commitdiff