# Check for getloadavg.
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2002, 2003,
-# 2006 Free Software Foundation, Inc.
+# 2006, 2008 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# 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 $gl_have_func = no; then
- AC_CHECK_HEADERS(mach/mach.h)
-fi
-
-AC_CHECK_HEADERS(nlist.h,
-[AC_CHECK_MEMBERS([struct nlist.n_un.n_name],
- [AC_DEFINE(NLIST_NAME_UNION, 1,
- [Define to 1 if your `struct nlist' has an
- `n_un' member. Obsolete, depend on
- `HAVE_STRUCT_NLIST_N_UN_N_NAME])], [],
- [@%:@include <nlist.h>])
-])dnl
-])# gl_PREREQ_GETLOADAVG
+# gl_GETLOADAVG(LIBOBJDIR)
+# ------------------------
+AC_DEFUN([gl_GETLOADAVG],
+[AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+# Persuade glibc <stdlib.h> to declare getloadavg().
+AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-# gl_GETLOADAVG
-# -------------
-AN_FUNCTION([getloadavg], [gl_GETLOADAVG])
-AC_DEFUN([gl_GETLOADAVG],
-[gl_have_func=no # yes means we've found a way to get the load average.
+gl_have_func=no # yes means we've found a way to get the load average.
# Make sure getloadavg.c is where it belongs, at configure-time.
-test -f "$srcdir/$ac_config_libobj_dir/getloadavg.c" ||
- AC_MSG_ERROR([$srcdir/$ac_config_libobj_dir/getloadavg.c is missing])
+test -f "$srcdir/$1/getloadavg.c" ||
+ AC_MSG_ERROR([$srcdir/$1/getloadavg.c is missing])
gl_save_LIBS=$LIBS
AC_CHECK_LIB(kstat, kstat_open)
test $ac_cv_lib_kstat_kstat_open = yes && gl_have_func=yes
+# AIX has libperfstat which does not require root
+AC_CHECK_LIB(perfstat, perfstat_cpu_total)
+test $ac_cv_lib_perfstat_perfstat_cpu_total = yes && gl_have_func=yes
+
# Some systems with -lutil have (and need) -lkvm as well, some do not.
# On Solaris, -lkvm requires nlist from -lelf, so check that first
# to get the right answer into the cache.
AC_CACHE_CHECK(whether getloadavg requires setgid,
gl_cv_func_getloadavg_setgid,
[AC_EGREP_CPP([Yowza Am I SETGID yet],
-[#define gl_GETLOADAVG
-#include "$srcdir/$ac_config_libobj_dir/getloadavg.c"
+[#define CONFIGURING_GETLOADAVG
+#include "$srcdir/$1/getloadavg.c"
#ifdef LDAV_PRIVILEGED
Yowza Am I SETGID yet
#endif
# If we got an error (system does not support symlinks), try without -L.
test -z "$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;']`
+ | sed -ne ['s/[ ][ ]*/ /g
+ s/^.[sSrwx-]* *[0-9]* *\([^0-9]*\) *.*/\1/
+ / /s/.* //;p']`
])
AC_SUBST(KMEM_GROUP, $gl_cv_group_kmem)dnl
fi
LIBS=$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],
+[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
projects / pspp / blobdiff