# aclocal.m4 generated automatically by aclocal 1.6.1 -*- Autoconf -*-# Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002# 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.# This program is distributed in the hope that it will be useful,# but WITHOUT ANY WARRANTY, to the extent permitted by law; without# even the implied warranty of MERCHANTABILITY or FITNESS FOR A# PARTICULAR PURPOSE.dnl Special Macrosdnl OPENVPN_ADD_LIBS(LIB)AC_DEFUN(OPENVPN_ADD_LIBS, [  LIBS="$1 $LIBS"])dnl -- The following is taken from curl's acinclude.m4 --dnl Check for socklen_t: historically on BSD it is an int, and indnl POSIX 1g it is a type of its own, but some platforms use differentdnl types for the argument to getsockopt, getpeername, etc.  So wednl have to test to find something that will work.AC_DEFUN([TYPE_SOCKLEN_T],[   AC_CHECK_TYPE([socklen_t], ,[      AC_MSG_CHECKING([for socklen_t equivalent])      AC_CACHE_VAL([curl_cv_socklen_t_equiv],      [         # Systems have either "struct sockaddr *" or         # "void *" as the second argument to getpeername         curl_cv_socklen_t_equiv=         for arg2 in "struct sockaddr" void; do            for t in int size_t unsigned long "unsigned long"; do               AC_TRY_COMPILE([                  #include <sys/types.h>                  #include <sys/socket.h>                  int getpeername (int, $arg2 *, $t *);               ],[                  $t len;                  getpeername(0,0,&len);               ],[                  curl_cv_socklen_t_equiv="$t"                  break               ])            done         done         if test "x$curl_cv_socklen_t_equiv" = x; then            AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])         fi      ])      AC_MSG_RESULT($curl_cv_socklen_t_equiv)      AC_DEFINE_UNQUOTED(socklen_t, $curl_cv_socklen_t_equiv,			[type to use in place of socklen_t if not defined])],      [#include <sys/types.h>#include <sys/socket.h>])])dnl @synopsis ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])dnldnl This macro figures out how to build C programs using POSIXdnl threads.  It sets the PTHREAD_LIBS output variable to the threadsdnl library and linker flags, and the PTHREAD_CFLAGS output variablednl to any special C compiler flags that are needed.  (The user can alsodnl force certain compiler flags/libs to be tested by setting thesednl environment variables.)dnldnl Also sets PTHREAD_CC to any special C compiler that is needed fordnl multi-threaded programs (defaults to the value of CC otherwise).dnl (This is necessary on AIX to use the special cc_r compiler alias.)dnldnl If you are only building threads programs, you may wish todnl use these variables in your default LIBS, CFLAGS, and CC:dnldnl        LIBS="$PTHREAD_LIBS $LIBS"dnl        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"dnl        CC="$PTHREAD_CC"dnldnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attributednl constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLEdnl to that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).dnldnl ACTION-IF-FOUND is a list of shell commands to run if a threadsdnl library is found, and ACTION-IF-NOT-FOUND is a list of commandsdnl to run it if it is not found.  If ACTION-IF-FOUND is not specified,dnl the default action will define HAVE_PTHREAD.dnldnl Please let the authors know if this macro fails on any platform,dnl or if you have any other suggestions or comments.  This macro wasdnl based on work by SGJ on autoconf scripts for FFTW (www.fftw.org)dnl (with help from M. Frigo), as well as ac_pthread and hb_pthreaddnl macros posted by AFC to the autoconf macro repository.  We are alsodnl grateful for the helpful feedback of numerous users.dnldnl @version $Id: acinclude.m4,v 1.1 2002/05/30 00:04:45 jimyonan Exp $dnl @author Steven G. Johnson <stevenj@alum.mit.edu> and Alejandro Forero Cuervo <bachue@bachue.com>AC_DEFUN([ACX_PTHREAD], [AC_REQUIRE([AC_CANONICAL_HOST])acx_pthread_ok=no# We used to check for pthread.h first, but this fails if pthread.h# requires special compiler flags (e.g. on True64 or Sequent).# It gets checked for in the link test anyway.# First of all, check if the user has set any of the PTHREAD_LIBS,# etcetera environment variables, and if threads linking works using# them:if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then        save_CFLAGS="$CFLAGS"        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"        save_LIBS="$LIBS"        LIBS="$PTHREAD_LIBS $LIBS"        AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])        AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)        AC_MSG_RESULT($acx_pthread_ok)        if test x"$acx_pthread_ok" = xno; then                PTHREAD_LIBS=""                PTHREAD_CFLAGS=""        fi        LIBS="$save_LIBS"        CFLAGS="$save_CFLAGS"fi# We must check for the threads library under a number of different# names; the ordering is very important because some systems# (e.g. DEC) have both -lpthread and -lpthreads, where one of the# libraries is broken (non-POSIX).# Create a list of thread flags to try.  Items starting with a "-" are# C compiler flags, and other items are library names, except for "none"# which indicates that we try without any flags at all.acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt"# The ordering *is* (sometimes) important.  Some notes on the# individual items follow:# pthreads: AIX (must check this before -lpthread)# none: in case threads are in libc; should be tried before -Kthread and#       other compiler flags to prevent continual compiler warnings# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)# -pthreads: Solaris/gcc# -mthreads: Mingw32/gcc, Lynx/gcc# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it#      doesn't hurt to check since this sometimes defines pthreads too;#      also defines -D_REENTRANT)# pthread: Linux, etcetera# --thread-safe: KAI C++case "$target" in        *solaris*)        # On Solaris (at least, for some versions), libc contains stubbed        # (non-functional) versions of the pthreads routines, so link-based        # tests will erroneously succeed.  (We need to link with -pthread or        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather        # a function called by this macro, so we could check for that, but        # who knows whether they'll stub that too in a future libc.)  So,        # we'll just look for -pthreads and -lpthread first:        acx_pthread_flags="-pthread -pthreads pthread -mt $acx_pthread_flags"        ;;esacif test x"$acx_pthread_ok" = xno; thenfor flag in $acx_pthread_flags; do        case $flag in                none)                AC_MSG_CHECKING([whether pthreads work without any flags])                ;;                -*)                AC_MSG_CHECKING([whether pthreads work with $flag])                PTHREAD_CFLAGS="$flag"                ;;                *)                AC_MSG_CHECKING([for the pthreads library -l$flag])                PTHREAD_LIBS="-l$flag"                ;;        esac        save_LIBS="$LIBS"        save_CFLAGS="$CFLAGS"        LIBS="$PTHREAD_LIBS $LIBS"        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"        # Check for various functions.  We must include pthread.h,        # since some functions may be macros.  (On the Sequent, we        # need a special flag -Kthread to make this header compile.)        # We check for pthread_join because it is in -lpthread on IRIX        # while pthread_create is in libc.  We check for pthread_attr_init        # due to DEC craziness with -lpthreads.  We check for        # pthread_cleanup_push because it is one of the few pthread        # functions on Solaris that doesn't have a non-functional libc stub.        # We try pthread_create on general principles.        AC_TRY_LINK([#include <pthread.h>],                    [pthread_t th; pthread_join(th, 0);                     pthread_attr_init(0); pthread_cleanup_push(0, 0);                     pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],                    [acx_pthread_ok=yes])        LIBS="$save_LIBS"        CFLAGS="$save_CFLAGS"        AC_MSG_RESULT($acx_pthread_ok)        if test "x$acx_pthread_ok" = xyes; then                break;        fi        PTHREAD_LIBS=""        PTHREAD_CFLAGS=""donefi# Various other checks:if test "x$acx_pthread_ok" = xyes; then        save_LIBS="$LIBS"        LIBS="$PTHREAD_LIBS $LIBS"        save_CFLAGS="$CFLAGS"        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"        # Detect AIX lossage: threads are created detached by default        # and the JOINABLE attribute has a nonstandard name (UNDETACHED).        AC_MSG_CHECKING([for joinable pthread attribute])        AC_TRY_LINK([#include <pthread.h>],                    [int attr=PTHREAD_CREATE_JOINABLE;],                    ok=PTHREAD_CREATE_JOINABLE, ok=unknown)        if test x"$ok" = xunknown; then                AC_TRY_LINK([#include <pthread.h>],                            [int attr=PTHREAD_CREATE_UNDETACHED;],                            ok=PTHREAD_CREATE_UNDETACHED, ok=unknown)        fi        if test x"$ok" != xPTHREAD_CREATE_JOINABLE; then                AC_DEFINE(PTHREAD_CREATE_JOINABLE, $ok,                          [Define to the necessary symbol if this constant                           uses a non-standard name on your system.])        fi        AC_MSG_RESULT(${ok})        if test x"$ok" = xunknown; then                AC_MSG_WARN([we do not know how to create joinable pthreads])        fi        AC_MSG_CHECKING([if more special flags are required for pthreads])        flag=no        case "$target" in                *-aix* | *-freebsd*)               flag="-D_THREAD_SAFE";;                *solaris* | alpha*-osf* | *linux*) flag="-D_REENTRANT";;        esac        AC_MSG_RESULT(${flag})        if test "x$flag" != xno; then                PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"        fi        LIBS="$save_LIBS"        CFLAGS="$save_CFLAGS"        # More AIX lossage: must compile with cc_r        AC_CHECK_PROG(PTHREAD_CC, cc_r, cc_r, ${CC})else        PTHREAD_CC="$CC"fiAC_SUBST(PTHREAD_LIBS)AC_SUBST(PTHREAD_CFLAGS)AC_SUBST(PTHREAD_CC)# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:if test x"$acx_pthread_ok" = xyes; then        ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])        :else        acx_pthread_ok=no        $2fi])dnl ACX_PTHREAD# Like AC_CONFIG_HEADER, but automatically create stamp file. -*- Autoconf -*-# Copyright 1996, 1997, 2000, 2001 Free Software Foundation, Inc.# This program is free software; you can redistribute it and/or modify# it under the terms of the GNU General Public License as published by# the Free Software Foundation; either version 2, or (at your option)# any later version.# This program is distributed in the hope that it will be useful,# but WITHOUT ANY WARRANTY; without even the implied warranty of# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the# GNU General Public License for more details.# You should have received a copy of the GNU General Public License# along with this program; if not, write to the Free Software# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA# 02111-1307, USA.AC_PREREQ([2.52])# serial 6# When config.status generates a header, we must update the stamp-h file.# This file resides in the same directory as the config header# that is generated.  We must strip everything past the first ":",# and everything past the last "/".# _AM_DIRNAME(PATH)# -----------------# Like AS_DIRNAME, only do it during macro expansionAC_DEFUN([_AM_DIRNAME],       [m4_if(regexp([$1], [^.*[^/]//*[^/][^/]*/*$]), -1,	      m4_if(regexp([$1], [^//\([^/]\|$\)]), -1,		    m4_if(regexp([$1], [^/.*]), -1,			  [.],			  patsubst([$1], [^\(/\).*], [\1])),		    patsubst([$1], [^\(//\)\([^/].*\|$\)], [\1])),	      patsubst([$1], [^\(.*[^/]\)//*[^/][^/]*/*$], [\1]))[]dnl])# _AM_DIRNAME# The stamp files are numbered to have different names.# We could number them on a directory basis, but that's additional# complications, let's have a unique counter.m4_define([_AM_STAMP_Count], [0])# _AM_STAMP(HEADER)# -----------------# The name of the stamp file for HEADER.AC_DEFUN([_AM_STAMP],[m4_define([_AM_STAMP_Count], m4_incr(_AM_STAMP_Count))dnlAS_ESCAPE(_AM_DIRNAME(patsubst([$1],                               [:.*])))/stamp-h[]_AM_STAMP_Count])# _AM_CONFIG_HEADER(HEADER[:SOURCES], COMMANDS, INIT-COMMANDS)# ------------------------------------------------------------# We used to try to get a real timestamp in stamp-h.  But the fear is that# that will cause unnecessary cvs conflicts.AC_DEFUN([_AM_CONFIG_HEADER],[# Add the stamp file to the list of files AC keeps track of,# along with our hook.AC_CONFIG_HEADERS([$1],                  [# update the timestampecho 'timestamp for $1' >"_AM_STAMP([$1])"$2],                  [$3])])# _AM_CONFIG_HEADER# AM_CONFIG_HEADER(HEADER[:SOURCES]..., COMMANDS, INIT-COMMANDS)# --------------------------------------------------------------AC_DEFUN([AM_CONFIG_HEADER],[AC_FOREACH([_AM_File], [$1], [_AM_CONFIG_HEADER(_AM_File, [$2], [$3])])])# AM_CONFIG_HEADER# Do all the work for Automake.                            -*- Autoconf -*-# This macro actually does too much some checks are only needed if# your package does certain things.  But this isn't really a big deal.