update to Iperf 2.0.1
diff --git a/Makefile.am b/Makefile.am
index b755993..85e4718 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,3 +1,7 @@
 SUBDIRS = compat doc include src
 
+AM_CPPFLAGS = @STRIP_BEGIN@ \
+	      -I$(top_srcdir)/include \
+	      @STRIP_END@
+
 EXTRA_DIST = autogen.sh
diff --git a/Makefile.in b/Makefile.in
index efd2c67..42c5865 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -40,8 +40,8 @@
 	depcomp install-sh missing
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/m4/dast.m4 \
-	$(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/acx_pthread.m4 \
+	$(top_srcdir)/m4/dast.m4 $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
@@ -112,6 +112,9 @@
 PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_LIBS = @PTHREAD_LIBS@
 RANLIB = @RANLIB@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
@@ -127,6 +130,7 @@
 ac_ct_CXX = @ac_ct_CXX@
 ac_ct_RANLIB = @ac_ct_RANLIB@
 ac_ct_STRIP = @ac_ct_STRIP@
+acx_pthread_config = @acx_pthread_config@
 am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
 am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
 am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@
@@ -163,6 +167,10 @@
 sysconfdir = @sysconfdir@
 target_alias = @target_alias@
 SUBDIRS = compat doc include src
+AM_CPPFLAGS = @STRIP_BEGIN@ \
+	      -I$(top_srcdir)/include \
+	      @STRIP_END@
+
 EXTRA_DIST = autogen.sh
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-recursive
diff --git a/aclocal.m4 b/aclocal.m4
index 7ca4603..22f9fb8 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -901,4 +901,5 @@
 INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 
+m4_include([m4/acx_pthread.m4])
 m4_include([m4/dast.m4])
diff --git a/compat/Makefile.am b/compat/Makefile.am
index b55105c..83334c6 100644
--- a/compat/Makefile.am
+++ b/compat/Makefile.am
@@ -1,8 +1,8 @@
 noinst_LIBRARIES = libcompat.a
 
 AM_CPPFLAGS = @STRIP_BEGIN@ \
-	-I$(top_srcdir)/include \
-	@STRIP_END@
+	      -I$(top_srcdir)/include \
+	      @STRIP_END@
 
 libcompat_a_SOURCES = \
 		      Thread.c \
diff --git a/compat/Makefile.in b/compat/Makefile.in
index 5c698a9..853e9b9 100644
--- a/compat/Makefile.in
+++ b/compat/Makefile.in
@@ -40,8 +40,8 @@
 subdir = compat
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/m4/dast.m4 \
-	$(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/acx_pthread.m4 \
+	$(top_srcdir)/m4/dast.m4 $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(mkdir_p)
@@ -120,6 +120,9 @@
 PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_LIBS = @PTHREAD_LIBS@
 RANLIB = @RANLIB@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
@@ -135,6 +138,7 @@
 ac_ct_CXX = @ac_ct_CXX@
 ac_ct_RANLIB = @ac_ct_RANLIB@
 ac_ct_STRIP = @ac_ct_STRIP@
+acx_pthread_config = @acx_pthread_config@
 am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
 am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
 am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@
@@ -172,8 +176,8 @@
 target_alias = @target_alias@
 noinst_LIBRARIES = libcompat.a
 AM_CPPFLAGS = @STRIP_BEGIN@ \
-	-I$(top_srcdir)/include \
-	@STRIP_END@
+	      -I$(top_srcdir)/include \
+	      @STRIP_END@
 
 libcompat_a_SOURCES = \
 		      Thread.c \
diff --git a/config.h.in b/config.h.in
index 5a63324..de2b4e0 100644
--- a/config.h.in
+++ b/config.h.in
@@ -83,6 +83,9 @@
 /* */
 #undef HAVE_PRINTF_QD
 
+/* Define if you have POSIX threads libraries and header files. */
+#undef HAVE_PTHREAD
+
 /* Define to 1 if you have the `pthread_cancel' function. */
 #undef HAVE_PTHREAD_CANCEL
 
@@ -194,6 +197,10 @@
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
+/* Define to the necessary symbol if this constant uses a non-standard name on
+   your system. */
+#undef PTHREAD_CREATE_JOINABLE
+
 /* Define as the return type of signal handlers (`int' or `void'). */
 #undef RETSIGTYPE
 
diff --git a/configure b/configure
index 0f36174..02635da 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.59 for Iperf 2.0.
+# Generated by GNU Autoconf 2.59 for Iperf 2.0.1.
 #
 # Copyright (C) 2003 Free Software Foundation, Inc.
 # This configure script is free software; the Free Software Foundation
@@ -267,8 +267,8 @@
 # Identity of this package.
 PACKAGE_NAME='Iperf'
 PACKAGE_TARNAME='iperf'
-PACKAGE_VERSION='2.0'
-PACKAGE_STRING='Iperf 2.0'
+PACKAGE_VERSION='2.0.1'
+PACKAGE_STRING='Iperf 2.0.1'
 PACKAGE_BUGREPORT=''
 
 # Factoring default headers for most tests.
@@ -308,7 +308,7 @@
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO AMTAR install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot CXX CXXFLAGS LDFLAGS CPPFLAGS ac_ct_CXX EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CXXDEPMODE am__fastdepCXX_TRUE am__fastdepCXX_FALSE CC CFLAGS ac_ct_CC CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE RANLIB ac_ct_RANLIB build build_cpu build_vendor build_os host host_cpu host_vendor host_os CPP EGREP LIBOBJS WEB100_CONFIG WEB100_CFLAGS WEB100_LIBS STRIP_DUMMY STRIP_BEGIN STRIP_END LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO AMTAR install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot CXX CXXFLAGS LDFLAGS CPPFLAGS ac_ct_CXX EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CXXDEPMODE am__fastdepCXX_TRUE am__fastdepCXX_FALSE CC CFLAGS ac_ct_CC CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE RANLIB ac_ct_RANLIB build build_cpu build_vendor build_os host host_cpu host_vendor host_os acx_pthread_config PTHREAD_CC PTHREAD_LIBS PTHREAD_CFLAGS CPP EGREP LIBOBJS WEB100_CONFIG WEB100_CFLAGS WEB100_LIBS STRIP_DUMMY STRIP_BEGIN STRIP_END LTLIBOBJS'
 ac_subst_files=''
 
 # Initialize some variables set by options.
@@ -785,7 +785,7 @@
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures Iperf 2.0 to adapt to many kinds of systems.
+\`configure' configures Iperf 2.0.1 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -851,7 +851,7 @@
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of Iperf 2.0:";;
+     short | recursive ) echo "Configuration of Iperf 2.0.1:";;
    esac
   cat <<\_ACEOF
 
@@ -975,7 +975,7 @@
 test -n "$ac_init_help" && exit 0
 if $ac_init_version; then
   cat <<\_ACEOF
-Iperf configure 2.0
+Iperf configure 2.0.1
 generated by GNU Autoconf 2.59
 
 Copyright (C) 2003 Free Software Foundation, Inc.
@@ -989,7 +989,7 @@
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by Iperf $as_me 2.0, which was
+It was created by Iperf $as_me 2.0.1, which was
 generated by GNU Autoconf 2.59.  Invocation command line was
 
   $ $0 $@
@@ -1626,7 +1626,7 @@
 
 # Define the identity of the package.
  PACKAGE='iperf'
- VERSION='2.0'
+ VERSION='2.0.1'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -3348,241 +3348,6 @@
 
 
 CFLAGS=`echo " $CFLAGS " | sed -e "s/ -g / /"` # do not want it implicitly
-
-echo "$as_me:$LINENO: checking for library containing strerror" >&5
-echo $ECHO_N "checking for library containing strerror... $ECHO_C" >&6
-if test "${ac_cv_search_strerror+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-ac_cv_search_strerror=no
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-/* Override any gcc2 internal prototype to avoid an error.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
-   builtin and then its argument prototype would still apply.  */
-char strerror ();
-int
-main ()
-{
-strerror ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_cv_search_strerror="none required"
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-fi
-rm -f conftest.err conftest.$ac_objext \
-      conftest$ac_exeext conftest.$ac_ext
-if test "$ac_cv_search_strerror" = no; then
-  for ac_lib in cposix; do
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-/* Override any gcc2 internal prototype to avoid an error.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
-   builtin and then its argument prototype would still apply.  */
-char strerror ();
-int
-main ()
-{
-strerror ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_cv_search_strerror="-l$ac_lib"
-break
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-fi
-rm -f conftest.err conftest.$ac_objext \
-      conftest$ac_exeext conftest.$ac_ext
-  done
-fi
-LIBS=$ac_func_search_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_search_strerror" >&5
-echo "${ECHO_T}$ac_cv_search_strerror" >&6
-if test "$ac_cv_search_strerror" != no; then
-  test "$ac_cv_search_strerror" = "none required" || LIBS="$ac_cv_search_strerror $LIBS"
-
-fi
-
-# Find a good install program.  We prefer a C program (faster),
-# so one script is as good as another.  But avoid the broken or
-# incompatible versions:
-# SysV /etc/install, /usr/sbin/install
-# SunOS /usr/etc/install
-# IRIX /sbin/install
-# AIX /bin/install
-# AmigaOS /C/install, which installs bootblocks on floppy discs
-# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
-# AFS /usr/afsws/bin/install, which mishandles nonexistent args
-# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
-# OS/2's system install, which has a completely different semantic
-# ./install, which can be erroneously created by make from ./install.sh.
-echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
-echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6
-if test -z "$INSTALL"; then
-if test "${ac_cv_path_install+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  # Account for people who put trailing slashes in PATH elements.
-case $as_dir/ in
-  ./ | .// | /cC/* | \
-  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
-  ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
-  /usr/ucb/* ) ;;
-  *)
-    # OSF1 and SCO ODT 3.0 have their own names for install.
-    # Don't use installbsd from OSF since it installs stuff as root
-    # by default.
-    for ac_prog in ginstall scoinst install; do
-      for ac_exec_ext in '' $ac_executable_extensions; do
-	if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
-	  if test $ac_prog = install &&
-	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
-	    # AIX install.  It has an incompatible calling convention.
-	    :
-	  elif test $ac_prog = install &&
-	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
-	    # program-specific install script used by HP pwplus--don't use.
-	    :
-	  else
-	    ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
-	    break 3
-	  fi
-	fi
-      done
-    done
-    ;;
-esac
-done
-
-
-fi
-  if test "${ac_cv_path_install+set}" = set; then
-    INSTALL=$ac_cv_path_install
-  else
-    # As a last resort, use the slow shell script.  We don't cache a
-    # path for INSTALL within a source directory, because that will
-    # break other packages using the cache if that directory is
-    # removed, or if the path is relative.
-    INSTALL=$ac_install_sh
-  fi
-fi
-echo "$as_me:$LINENO: result: $INSTALL" >&5
-echo "${ECHO_T}$INSTALL" >&6
-
-# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
-# It thinks the first close brace ends the variable substitution.
-test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
-
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
-
-test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
-
-echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
-echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6
-set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,:./+-,___p_,'`
-if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.make <<\_ACEOF
-all:
-	@echo 'ac_maketemp="$(MAKE)"'
-_ACEOF
-# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
-eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=`
-if test -n "$ac_maketemp"; then
-  eval ac_cv_prog_make_${ac_make}_set=yes
-else
-  eval ac_cv_prog_make_${ac_make}_set=no
-fi
-rm -f conftest.make
-fi
-if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
-  echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-  SET_MAKE=
-else
-  echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-  SET_MAKE="MAKE=${MAKE-make}"
-fi
-
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
@@ -3663,7 +3428,17 @@
   RANLIB="$ac_cv_prog_RANLIB"
 fi
 
-# Make sure we can run config.sub.
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+if test "$enable_threads" != no; then
+  # Make sure we can run config.sub.
 $ac_config_sub sun4 >/dev/null 2>&1 ||
   { { echo "$as_me:$LINENO: error: cannot run $ac_config_sub" >&5
 echo "$as_me: error: cannot run $ac_config_sub" >&2;}
@@ -3720,8 +3495,477 @@
 
 
 
-if test "$enable_threads" != no; then
-  ACX_PTHREAD()
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+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 $LIBS"
+        echo "$as_me:$LINENO: checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS" >&5
+echo $ECHO_N "checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS... $ECHO_C" >&6
+        cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char pthread_join ();
+int
+main ()
+{
+pthread_join ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  acx_pthread_ok=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+        echo "$as_me:$LINENO: result: $acx_pthread_ok" >&5
+echo "${ECHO_T}$acx_pthread_ok" >&6
+        if test x"$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, and "pthread-config"
+# which is a program returning the flags for the Pth emulation library.
+
+acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+
+# 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++
+# pthread-config: use pthread-config program (for GNU Pth library)
+
+case "${host_cpu}-${host_os}" 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 $acx_pthread_flags"
+        ;;
+esac
+
+if test x"$acx_pthread_ok" = xno; then
+for flag in $acx_pthread_flags; do
+
+        case $flag in
+                none)
+                echo "$as_me:$LINENO: checking whether pthreads work without any flags" >&5
+echo $ECHO_N "checking whether pthreads work without any flags... $ECHO_C" >&6
+                ;;
+
+                -*)
+                echo "$as_me:$LINENO: checking whether pthreads work with $flag" >&5
+echo $ECHO_N "checking whether pthreads work with $flag... $ECHO_C" >&6
+                PTHREAD_CFLAGS="$flag"
+                ;;
+
+		pthread-config)
+		# Extract the first word of "pthread-config", so it can be a program name with args.
+set dummy pthread-config; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_acx_pthread_config+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$acx_pthread_config"; then
+  ac_cv_prog_acx_pthread_config="$acx_pthread_config" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_acx_pthread_config="yes"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+  test -z "$ac_cv_prog_acx_pthread_config" && ac_cv_prog_acx_pthread_config="no"
+fi
+fi
+acx_pthread_config=$ac_cv_prog_acx_pthread_config
+if test -n "$acx_pthread_config"; then
+  echo "$as_me:$LINENO: result: $acx_pthread_config" >&5
+echo "${ECHO_T}$acx_pthread_config" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+		if test x"$acx_pthread_config" = xno; then continue; fi
+		PTHREAD_CFLAGS="`pthread-config --cflags`"
+		PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
+		;;
+
+                *)
+                echo "$as_me:$LINENO: checking for the pthreads library -l$flag" >&5
+echo $ECHO_N "checking for the pthreads library -l$flag... $ECHO_C" >&6
+                PTHREAD_LIBS="-l$flag"
+                ;;
+        esac
+
+        save_LIBS="$LIBS"
+        save_CFLAGS="$CFLAGS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+        # Check for various functions.  We must include pthread.h,
+        # since some functions may be macros.  (On the Sequent, we
+        # need a special flag -Kthread to make this header compile.)
+        # We check for pthread_join because it is in -lpthread on IRIX
+        # while pthread_create is in libc.  We check for pthread_attr_init
+        # due to DEC craziness with -lpthreads.  We check for
+        # pthread_cleanup_push because it is one of the few pthread
+        # functions on Solaris that doesn't have a non-functional libc stub.
+        # We try pthread_create on general principles.
+        cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+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);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  acx_pthread_ok=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+
+        echo "$as_me:$LINENO: result: $acx_pthread_ok" >&5
+echo "${ECHO_T}$acx_pthread_ok" >&6
+        if test "x$acx_pthread_ok" = xyes; then
+                break;
+        fi
+
+        PTHREAD_LIBS=""
+        PTHREAD_CFLAGS=""
+done
+fi
+
+# Various other checks:
+if test "x$acx_pthread_ok" = xyes; then
+        save_LIBS="$LIBS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        save_CFLAGS="$CFLAGS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+        # Detect AIX lossage: threads are created detached by default
+        # and the JOINABLE attribute has a nonstandard name (UNDETACHED).
+        echo "$as_me:$LINENO: checking for joinable pthread attribute" >&5
+echo $ECHO_N "checking for joinable pthread attribute... $ECHO_C" >&6
+        cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+int attr=PTHREAD_CREATE_JOINABLE;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ok=PTHREAD_CREATE_JOINABLE
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ok=unknown
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+        if test x"$ok" = xunknown; then
+                cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+int attr=PTHREAD_CREATE_UNDETACHED;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ok=PTHREAD_CREATE_UNDETACHED
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ok=unknown
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+        fi
+        if test x"$ok" != xPTHREAD_CREATE_JOINABLE; then
+
+cat >>confdefs.h <<\_ACEOF
+#define PTHREAD_CREATE_JOINABLE $ok
+_ACEOF
+
+        fi
+        echo "$as_me:$LINENO: result: ${ok}" >&5
+echo "${ECHO_T}${ok}" >&6
+        if test x"$ok" = xunknown; then
+                { echo "$as_me:$LINENO: WARNING: we do not know how to create joinable pthreads" >&5
+echo "$as_me: WARNING: we do not know how to create joinable pthreads" >&2;}
+        fi
+
+        echo "$as_me:$LINENO: checking if more special flags are required for pthreads" >&5
+echo $ECHO_N "checking if more special flags are required for pthreads... $ECHO_C" >&6
+        flag=no
+        case "${host_cpu}-${host_os}" in
+                *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
+                *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
+        esac
+        echo "$as_me:$LINENO: result: ${flag}" >&5
+echo "${ECHO_T}${flag}" >&6
+        if test "x$flag" != xno; then
+                PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
+        fi
+
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+
+        # More AIX lossage: must compile with cc_r
+        # Extract the first word of "cc_r", so it can be a program name with args.
+set dummy cc_r; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_PTHREAD_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$PTHREAD_CC"; then
+  ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_PTHREAD_CC="cc_r"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+  test -z "$ac_cv_prog_PTHREAD_CC" && ac_cv_prog_PTHREAD_CC="${CC}"
+fi
+fi
+PTHREAD_CC=$ac_cv_prog_PTHREAD_CC
+if test -n "$PTHREAD_CC"; then
+  echo "$as_me:$LINENO: result: $PTHREAD_CC" >&5
+echo "${ECHO_T}$PTHREAD_CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+else
+        PTHREAD_CC="$CC"
+fi
+
+
+
+
+
+# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
+if test x"$acx_pthread_ok" = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_PTHREAD 1
+_ACEOF
+
+        :
+else
+        acx_pthread_ok=no
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
     if test "$acx_pthread_ok" = yes; then
       cat >>confdefs.h <<\_ACEOF
 #define HAVE_POSIX_THREAD 1
@@ -13061,7 +13305,7 @@
 } >&5
 cat >&5 <<_CSEOF
 
-This file was extended by Iperf $as_me 2.0, which was
+This file was extended by Iperf $as_me 2.0.1, which was
 generated by GNU Autoconf 2.59.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -13124,7 +13368,7 @@
 
 cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
-Iperf config.status 2.0
+Iperf config.status 2.0.1
 configured by $0, generated by GNU Autoconf 2.59,
   with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
 
@@ -13378,6 +13622,10 @@
 s,@host_cpu@,$host_cpu,;t t
 s,@host_vendor@,$host_vendor,;t t
 s,@host_os@,$host_os,;t t
+s,@acx_pthread_config@,$acx_pthread_config,;t t
+s,@PTHREAD_CC@,$PTHREAD_CC,;t t
+s,@PTHREAD_LIBS@,$PTHREAD_LIBS,;t t
+s,@PTHREAD_CFLAGS@,$PTHREAD_CFLAGS,;t t
 s,@CPP@,$CPP,;t t
 s,@EGREP@,$EGREP,;t t
 s,@LIBOBJS@,$LIBOBJS,;t t
diff --git a/configure.ac b/configure.ac
index b5c66f6..6142c5c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@
 dnl ===================================================================
 
 
-AC_INIT(Iperf,2.0)
+AC_INIT(Iperf,2.0.1)
 AC_CONFIG_HEADERS([config.h])
 AM_INIT_AUTOMAKE
 
@@ -37,11 +37,12 @@
 CXXFLAGS=`echo " $CXXFLAGS " | sed -e "s/ -g / /"` # do not want it implicitly
 AC_PROG_CC
 CFLAGS=`echo " $CFLAGS " | sed -e "s/ -g / /"` # do not want it implicitly
-AC_ISC_POSIX
-AC_PROG_INSTALL
-AC_PROG_MAKE_SET
+dnl AC_ISC_POSIX
+dnl AC_PROG_INSTALL
+dnl AC_PROG_MAKE_SET
 AC_PROG_RANLIB
-AC_CANONICAL_HOST
+AC_LANG(C)
+dnl AC_CANONICAL_HOST
 
 dnl ===================================================================
 dnl Checks for libraries.
diff --git a/doc/Makefile.in b/doc/Makefile.in
index 95f1a94..385e4c9 100644
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -37,8 +37,8 @@
 subdir = doc
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/m4/dast.m4 \
-	$(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/acx_pthread.m4 \
+	$(top_srcdir)/m4/dast.m4 $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(mkdir_p)
@@ -88,6 +88,9 @@
 PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_LIBS = @PTHREAD_LIBS@
 RANLIB = @RANLIB@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
@@ -103,6 +106,7 @@
 ac_ct_CXX = @ac_ct_CXX@
 ac_ct_RANLIB = @ac_ct_RANLIB@
 ac_ct_STRIP = @ac_ct_STRIP@
+acx_pthread_config = @acx_pthread_config@
 am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
 am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
 am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@
diff --git a/include/Makefile.in b/include/Makefile.in
index 0e4ab2d..d781097 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -37,8 +37,8 @@
 subdir = include
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/m4/dast.m4 \
-	$(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/acx_pthread.m4 \
+	$(top_srcdir)/m4/dast.m4 $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(mkdir_p)
@@ -88,6 +88,9 @@
 PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_LIBS = @PTHREAD_LIBS@
 RANLIB = @RANLIB@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
@@ -103,6 +106,7 @@
 ac_ct_CXX = @ac_ct_CXX@
 ac_ct_RANLIB = @ac_ct_RANLIB@
 ac_ct_STRIP = @ac_ct_STRIP@
+acx_pthread_config = @acx_pthread_config@
 am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
 am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
 am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@
diff --git a/include/version.h b/include/version.h
index d216046..2f3bb3e 100644
--- a/include/version.h
+++ b/include/version.h
@@ -1,2 +1,2 @@
-#define IPERF_VERSION "2.0.0"
-#define IPERF_VERSION_DATE "23 May 2004"
+#define IPERF_VERSION "2.0.1"
+#define IPERF_VERSION_DATE "08 Nov 2004"
diff --git a/src/Makefile.am b/src/Makefile.am
index 2e3cd7d..fe46aa9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,12 +1,14 @@
 bin_PROGRAMS = iperf
 
 LIBCOMPAT_LDADDS = @STRIP_BEGIN@ \
-	$(top_builddir)/compat/libcompat.a \
-	@STRIP_END@
+		   $(top_builddir)/compat/libcompat.a \
+		   @STRIP_END@
 
 AM_CPPFLAGS = @STRIP_BEGIN@ \
-	-I$(top_srcdir)/include \
-	@STRIP_END@
+	      -I$(top_srcdir)/include \
+	      @STRIP_END@
+
+iperf_LDFLAGS = @CFLAGS@ @PTHREAD_CFLAGS@ @WEB100_CFLAGS@ @DEFS@
 
 iperf_SOURCES = \
 		Client.cpp \
diff --git a/src/Makefile.in b/src/Makefile.in
index e825830..ac36723 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -41,8 +41,8 @@
 subdir = src
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/m4/dast.m4 \
-	$(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/acx_pthread.m4 \
+	$(top_srcdir)/m4/dast.m4 $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(mkdir_p)
@@ -131,6 +131,9 @@
 PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_LIBS = @PTHREAD_LIBS@
 RANLIB = @RANLIB@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
@@ -146,6 +149,7 @@
 ac_ct_CXX = @ac_ct_CXX@
 ac_ct_RANLIB = @ac_ct_RANLIB@
 ac_ct_STRIP = @ac_ct_STRIP@
+acx_pthread_config = @acx_pthread_config@
 am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
 am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
 am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@
@@ -182,13 +186,14 @@
 sysconfdir = @sysconfdir@
 target_alias = @target_alias@
 LIBCOMPAT_LDADDS = @STRIP_BEGIN@ \
-	$(top_builddir)/compat/libcompat.a \
-	@STRIP_END@
+		   $(top_builddir)/compat/libcompat.a \
+		   @STRIP_END@
 
 AM_CPPFLAGS = @STRIP_BEGIN@ \
-	-I$(top_srcdir)/include \
-	@STRIP_END@
+	      -I$(top_srcdir)/include \
+	      @STRIP_END@
 
+iperf_LDFLAGS = @CFLAGS@ @PTHREAD_CFLAGS@ @WEB100_CFLAGS@ @DEFS@
 iperf_SOURCES = \
 		Client.cpp \
 		Extractor.c \