X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fgetloadavg.m4;h=14198eca442d01202fa68809876ce00109054b9c;hb=16613e019fdfcd653604aa7ea704bb9641852b39;hp=73c60c536ddd42f6cdc6e676040d6b27a4dfad23;hpb=a2e6fc02c8b0b7afe4852e4e83881612667fee95;p=gnulib.git diff --git a/m4/getloadavg.m4 b/m4/getloadavg.m4 index 73c60c536..14198eca4 100644 --- a/m4/getloadavg.m4 +++ b/m4/getloadavg.m4 @@ -1,108 +1,155 @@ -#serial 8 +# Check for getloadavg. -# A replacement for autoconf's macro by the same name. This version -# accepts an optional argument specifying the name of the $srcdir-relative -# directory in which the file getloadavg.c may be found. It is unusual -# (but justified, imho) that this file is required at ./configure time. +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2002, 2003, +# 2006 Free Software Foundation, Inc. -undefine([AC_FUNC_GETLOADAVG]) +# 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. -# AC_FUNC_GETLOADAVG -# ------------------ -AC_DEFUN([AC_FUNC_GETLOADAVG], -[ac_have_func=no # yes means we've found a way to get the load average. +# Autoconf defines AC_FUNC_GETLOADAVG, but that is obsolescent. +# New applications should use gl_GETLOADAVG instead. -AC_CHECK_HEADERS(locale.h unistd.h mach/mach.h fcntl.h) -AC_CHECK_FUNCS(setlocale) +# gl_GETLOADAVG(LIBOBJDIR) +# ------------------------ +AC_DEFUN([gl_GETLOADAVG], +[gl_have_func=no # yes means we've found a way to get the load average. -# By default, expect to find getloadavg.c in $srcdir/. -ac_lib_dir_getloadavg=$srcdir -# But if there's an argument, DIR, expect to find getloadavg.c in $srcdir/DIR. -m4_ifval([$1], [ac_lib_dir_getloadavg=$srcdir/$1]) -# Make sure getloadavg.c is where it belongs, at ./configure-time. -test -f $ac_lib_dir_getloadavg/getloadavg.c \ - || AC_MSG_ERROR([getloadavg.c is not in $ac_lib_dir_getloadavg]) -# FIXME: Add an autoconf-time test, too? +# Make sure getloadavg.c is where it belongs, at configure-time. +test -f "$srcdir/$1/getloadavg.c" || + AC_MSG_ERROR([$srcdir/$ac_config_libobj_dir/getloadavg.c is missing]) -ac_save_LIBS=$LIBS +gl_save_LIBS=$LIBS # Check for getloadavg, but be sure not to touch the cache variable. -(AC_CHECK_FUNC(getloadavg, exit 0, exit 1)) && ac_have_func=yes +(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 && ac_have_func=yes +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 $ac_have_func = no; then +if test $gl_have_func = no; then AC_CHECK_LIB(elf, elf_begin, LIBS="-lelf $LIBS") fi -if test $ac_have_func = no; then +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" ac_have_func=yes ac_cv_func_getloadavg_setgid=yes]) + [LIBS="-lutil $LIBS" gl_have_func=yes gl_cv_func_getloadavg_setgid=yes]) fi -if test $ac_have_func = no; then +if test $gl_have_func = no; then # There is a commonly available library for RS/6000 AIX. # Since it is not a standard part of AIX, it might be installed locally. - ac_getloadavg_LIBS=$LIBS + gl_getloadavg_LIBS=$LIBS LIBS="-L/usr/local/lib $LIBS" AC_CHECK_LIB(getloadavg, getloadavg, - [LIBS="-lgetloadavg $LIBS"], [LIBS=$ac_getloadavg_LIBS]) + [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, [], - [_AC_LIBOBJ_GETLOADAVG]) + [gl_PREREQ_GETLOADAVG]) # Some definitions of getloadavg require that the program be installed setgid. AC_CACHE_CHECK(whether getloadavg requires setgid, - ac_cv_func_getloadavg_setgid, + gl_cv_func_getloadavg_setgid, [AC_EGREP_CPP([Yowza Am I SETGID yet], -[#include "$ac_lib_dir_getloadavg/getloadavg.c" +[#define CONFIGURING_GETLOADAVG +#include "$srcdir/$1/getloadavg.c" #ifdef LDAV_PRIVILEGED Yowza Am I SETGID yet -@%:@endif], - ac_cv_func_getloadavg_setgid=yes, - ac_cv_func_getloadavg_setgid=no)]) -if test $ac_cv_func_getloadavg_setgid = yes; then +#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 if the `getloadavg' function needs to be run setuid - or setgid.]) + [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 $ac_cv_func_getloadavg_setgid = yes; then - AC_CACHE_CHECK(group of /dev/kmem, ac_cv_group_kmem, +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` - ac_cv_group_kmem=`echo $ac_ls_output \ - | sed -ne ['s/[ ][ ]*/ /g; - s/^.[sSrwx-]* *[0-9]* *\([^0-9]*\) *.*/\1/; - / /s/.* //;p;']` + 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, $ac_cv_group_kmem)dnl + AC_SUBST(KMEM_GROUP, $gl_cv_group_kmem)dnl fi -if test "x$ac_save_LIBS" = x; then +if test "x$gl_save_LIBS" = x; then GETLOADAVG_LIBS=$LIBS else - GETLOADAVG_LIBS=`echo "$LIBS" | sed "s!$ac_save_LIBS!!"` + GETLOADAVG_LIBS=`echo "$LIBS" | sed "s!$gl_save_LIBS!!"` fi -LIBS=$ac_save_LIBS +LIBS=$gl_save_LIBS AC_SUBST(GETLOADAVG_LIBS)dnl -])# AC_FUNC_GETLOADAVG +])# 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 .]) + AC_CHECK_LIB(dgc, dg_sys_info)]) + +# We cannot check for , because Solaris 2 does not use dwarf (it +# uses stabs), but it is still SVR4. We cannot check for 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 + instead of .])]) +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 ]) +])dnl +])# gl_PREREQ_GETLOADAVG