From a65971e957a117618b33070897f11a4116f38e1f Mon Sep 17 00:00:00 2001
From: "Kevin M. Rosenberg" <kevin@rosenberg.net>
Date: Wed, 7 Mar 2001 21:18:50 +0000
Subject: [PATCH] r617: *** empty log message ***

---
 configure            | 293 +++++++++++++++++++++++++------------------
 configure.in         |   5 +
 src/dialogs.cpp      |  26 ++--
 src/threadproj.cpp   |   4 +-
 src/threadraster.cpp |   6 +-
 src/threadrecon.cpp  |  10 +-
 6 files changed, 197 insertions(+), 147 deletions(-)

diff --git a/configure b/configure
index a557fc0..28f0cb2 100755
--- a/configure
+++ b/configure
@@ -2233,10 +2233,47 @@ else
 libgl=false
 fi
 
+echo $ac_n "checking for main in -lpthread""... $ac_c" 1>&6
+echo "configure:2238: checking for main in -lpthread" >&5
+ac_lib_var=`echo pthread'_'main | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lpthread  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2246 "configure"
+#include "confdefs.h"
+
+int main() {
+main()
+; return 0; }
+EOF
+if { (eval echo configure:2253: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  pthread=true
+else
+  echo "$ac_t""no" 1>&6
+pthread=false
+fi
+
 
 if test "$zlib" = "true" ; then
   echo $ac_n "checking for main in -lpng""... $ac_c" 1>&6
-echo "configure:2240: checking for main in -lpng" >&5
+echo "configure:2277: checking for main in -lpng" >&5
 ac_lib_var=`echo png'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2244,14 +2281,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpng  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2248 "configure"
+#line 2285 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:2255: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2292: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2278,7 +2315,7 @@ fi
 fi
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:2282: checking how to run the C preprocessor" >&5
+echo "configure:2319: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -2293,13 +2330,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 2297 "configure"
+#line 2334 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2303: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2340: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -2310,13 +2347,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 2314 "configure"
+#line 2351 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2320: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2357: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -2327,13 +2364,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 2331 "configure"
+#line 2368 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2337: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2374: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -2358,12 +2395,12 @@ fi
 echo "$ac_t""$CPP" 1>&6
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:2362: checking for ANSI C header files" >&5
+echo "configure:2399: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2367 "configure"
+#line 2404 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -2371,7 +2408,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2375: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2412: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2388,7 +2425,7 @@ rm -f conftest*
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 2392 "configure"
+#line 2429 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -2406,7 +2443,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 2410 "configure"
+#line 2447 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -2427,7 +2464,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 2431 "configure"
+#line 2468 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -2438,7 +2475,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:2442: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2479: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -2465,17 +2502,17 @@ for ac_hdr in fcntl.h unistd.h getopt.h sys/fcntl.h setjmp.h stdarg.h stddef.h s
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2469: checking for $ac_hdr" >&5
+echo "configure:2506: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2474 "configure"
+#line 2511 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2479: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2516: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2503,12 +2540,12 @@ done
 
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:2507: checking for working const" >&5
+echo "configure:2544: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2512 "configure"
+#line 2549 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -2557,7 +2594,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:2561: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2598: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -2578,12 +2615,12 @@ EOF
 fi
 
 echo $ac_n "checking for off_t""... $ac_c" 1>&6
-echo "configure:2582: checking for off_t" >&5
+echo "configure:2619: checking for off_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_off_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2587 "configure"
+#line 2624 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2611,12 +2648,12 @@ EOF
 fi
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:2615: checking for size_t" >&5
+echo "configure:2652: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2620 "configure"
+#line 2657 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2644,12 +2681,12 @@ EOF
 fi
 
 echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
-echo "configure:2648: checking whether struct tm is in sys/time.h or time.h" >&5
+echo "configure:2685: checking whether struct tm is in sys/time.h or time.h" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2653 "configure"
+#line 2690 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
@@ -2657,7 +2694,7 @@ int main() {
 struct tm *tp; tp->tm_sec;
 ; return 0; }
 EOF
-if { (eval echo configure:2661: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2698: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm=time.h
 else
@@ -2679,12 +2716,12 @@ fi
 
 
 echo $ac_n "checking for vprintf""... $ac_c" 1>&6
-echo "configure:2683: checking for vprintf" >&5
+echo "configure:2720: checking for vprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2688 "configure"
+#line 2725 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char vprintf(); below.  */
@@ -2707,7 +2744,7 @@ vprintf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2711: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2748: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_vprintf=yes"
 else
@@ -2731,12 +2768,12 @@ fi
 
 if test "$ac_cv_func_vprintf" != yes; then
 echo $ac_n "checking for _doprnt""... $ac_c" 1>&6
-echo "configure:2735: checking for _doprnt" >&5
+echo "configure:2772: checking for _doprnt" >&5
 if eval "test \"`echo '$''{'ac_cv_func__doprnt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2740 "configure"
+#line 2777 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char _doprnt(); below.  */
@@ -2759,7 +2796,7 @@ _doprnt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2763: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2800: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func__doprnt=yes"
 else
@@ -2786,12 +2823,12 @@ fi
 for ac_func in strtod strtol snprintf htonl usleep vsprintf vsnprintf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2790: checking for $ac_func" >&5
+echo "configure:2827: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2795 "configure"
+#line 2832 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2814,7 +2851,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2818: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2855: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2839,12 +2876,12 @@ fi
 done
 
 echo $ac_n "checking for basename""... $ac_c" 1>&6
-echo "configure:2843: checking for basename" >&5
+echo "configure:2880: checking for basename" >&5
 if eval "test \"`echo '$''{'ac_cv_func_basename'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2848 "configure"
+#line 2885 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char basename(); below.  */
@@ -2867,7 +2904,7 @@ basename();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2871: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2908: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_basename=yes"
 else
@@ -2887,12 +2924,12 @@ else
 fi
 
 echo $ac_n "checking for setjmp""... $ac_c" 1>&6
-echo "configure:2891: checking for setjmp" >&5
+echo "configure:2928: checking for setjmp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_setjmp'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2896 "configure"
+#line 2933 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char setjmp(); below.  */
@@ -2915,7 +2952,7 @@ setjmp();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2919: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2956: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_setjmp=yes"
 else
@@ -2935,12 +2972,12 @@ else
 fi
 
 echo $ac_n "checking for setpriority""... $ac_c" 1>&6
-echo "configure:2939: checking for setpriority" >&5
+echo "configure:2976: checking for setpriority" >&5
 if eval "test \"`echo '$''{'ac_cv_func_setpriority'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2944 "configure"
+#line 2981 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char setpriority(); below.  */
@@ -2963,7 +3000,7 @@ setpriority();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2967: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3004: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_setpriority=yes"
 else
@@ -2983,12 +3020,12 @@ else
 fi
 
 echo $ac_n "checking for time""... $ac_c" 1>&6
-echo "configure:2987: checking for time" >&5
+echo "configure:3024: checking for time" >&5
 if eval "test \"`echo '$''{'ac_cv_func_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2992 "configure"
+#line 3029 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char time(); below.  */
@@ -3011,7 +3048,7 @@ time();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3015: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3052: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_time=yes"
 else
@@ -3031,12 +3068,12 @@ else
 fi
 
 echo $ac_n "checking for gettimeofday""... $ac_c" 1>&6
-echo "configure:3035: checking for gettimeofday" >&5
+echo "configure:3072: checking for gettimeofday" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gettimeofday'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3040 "configure"
+#line 3077 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gettimeofday(); below.  */
@@ -3059,7 +3096,7 @@ gettimeofday();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3063: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3100: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gettimeofday=yes"
 else
@@ -3083,12 +3120,12 @@ if test "${OSTYPE}" = "cygwin" ; then
   getopt_long=false
 else
   echo $ac_n "checking for getopt_long""... $ac_c" 1>&6
-echo "configure:3087: checking for getopt_long" >&5
+echo "configure:3124: checking for getopt_long" >&5
 if eval "test \"`echo '$''{'ac_cv_func_getopt_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3092 "configure"
+#line 3129 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char getopt_long(); below.  */
@@ -3111,7 +3148,7 @@ getopt_long();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3115: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3152: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_getopt_long=yes"
 else
@@ -3162,7 +3199,7 @@ if test "${readline}" = "true" ; then
 fi
 
 echo $ac_n "checking debug""... $ac_c" 1>&6
-echo "configure:3166: checking debug" >&5
+echo "configure:3203: checking debug" >&5
 # Check whether --enable-debug or --disable-debug was given.
 if test "${enable_debug+set}" = set; then
   enableval="$enable_debug"
@@ -3205,7 +3242,7 @@ EOF
 fi
 
 echo $ac_n "checking sstream""... $ac_c" 1>&6
-echo "configure:3209: checking sstream" >&5
+echo "configure:3246: checking sstream" >&5
  if  test -f /usr/include/sstream || test -f /usr/include/g++/sstream ||
      test -f /usr/include/g++-2/sstream || test -f /usr/include/g++-3/sstream ; then
   cat >> confdefs.h <<\EOF
@@ -3217,13 +3254,21 @@ fi
 echo "$ac_t""no" 1>&6
 
 
+if test "${pthread}" = "true" ; then
+  
+ if test -n "$GCC"; then
+    CFLAGS="$CFLAGS -pthread"
+ fi
+ 
+fi
+
 
  if test -n "$GCC"; then
     CFLAGS="$CFLAGS -Wall"
  fi
  
 echo $ac_n "checking whether to enable verbose warnings""... $ac_c" 1>&6
-echo "configure:3227: checking whether to enable verbose warnings" >&5
+echo "configure:3272: checking whether to enable verbose warnings" >&5
 # Check whether --enable-verbose-warnings or --disable-verbose-warnings was given.
 if test "${enable_verbose_warnings+set}" = set; then
   enableval="$enable_verbose_warnings"
@@ -3273,7 +3318,7 @@ fi
 
 
 echo $ac_n "checking static executables""... $ac_c" 1>&6
-echo "configure:3277: checking static executables" >&5
+echo "configure:3322: checking static executables" >&5
 # Check whether --enable-static or --disable-static was given.
 if test "${enable_static+set}" = set; then
   enableval="$enable_static"
@@ -3312,7 +3357,7 @@ if test "$withval" != "no" ; then
   fi
 
   echo $ac_n "checking for LAM MPI installation""... $ac_c" 1>&6
-echo "configure:3316: checking for LAM MPI installation" >&5
+echo "configure:3361: checking for LAM MPI installation" >&5
   for testlamdir in "." $trylamdir /usr/local /usr/local/lam /usr /usr/lam /opt /opt/lam ; do
     if test -x "$testlamdir/bin/hcp" ; then
       if test "$testlamdir" != "/usr"; then 	
@@ -3349,7 +3394,7 @@ if test "$withval" != "no" ; then
   fi
 
   echo $ac_n "checking for CTN DICOM installation""... $ac_c" 1>&6
-echo "configure:3353: checking for CTN DICOM installation" >&5
+echo "configure:3398: checking for CTN DICOM installation" >&5
   for testctndir in "." $tryctndir /usr/local /usr/local/ctn /usr /usr/ctn /opt /opt/ctn ; do
     if test -f "$testctndir/lib/libctn.a" ; then
       if test "$testctndir" != "/usr"; then 	
@@ -3373,7 +3418,7 @@ fi
 
 
 echo $ac_n "checking for web access""... $ac_c" 1>&6
-echo "configure:3377: checking for web access" >&5
+echo "configure:3422: checking for web access" >&5
 # Check whether --with-cgibin-dir or --without-cgibin-dir was given.
 if test "${with_cgibin_dir+set}" = set; then
   withval="$with_cgibin_dir"
@@ -3463,7 +3508,7 @@ fi
 # Uses ac_ vars as temps to allow command line to override cache and checks.
 # --without-x overrides everything else, but does not touch the cache.
 echo $ac_n "checking for X""... $ac_c" 1>&6
-echo "configure:3467: checking for X" >&5
+echo "configure:3512: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -3525,12 +3570,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 3529 "configure"
+#line 3574 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3534: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3579: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3599,14 +3644,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3603 "configure"
+#line 3648 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:3610: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3655: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -3712,17 +3757,17 @@ else
     case "`(uname -sr) 2>/dev/null`" in
     "SunOS 5"*)
       echo $ac_n "checking whether -R must be followed by a space""... $ac_c" 1>&6
-echo "configure:3716: checking whether -R must be followed by a space" >&5
+echo "configure:3761: checking whether -R must be followed by a space" >&5
       ac_xsave_LIBS="$LIBS"; LIBS="$LIBS -R$x_libraries"
       cat > conftest.$ac_ext <<EOF
-#line 3719 "configure"
+#line 3764 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:3726: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3771: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_R_nospace=yes
 else
@@ -3738,14 +3783,14 @@ rm -f conftest*
       else
 	LIBS="$ac_xsave_LIBS -R $x_libraries"
 	cat > conftest.$ac_ext <<EOF
-#line 3742 "configure"
+#line 3787 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:3749: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3794: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_R_space=yes
 else
@@ -3777,7 +3822,7 @@ rm -f conftest*
     # libraries were built with DECnet support.  And karl@cs.umb.edu says
     # the Alpha needs dnet_stub (dnet does not exist).
     echo $ac_n "checking for dnet_ntoa in -ldnet""... $ac_c" 1>&6
-echo "configure:3781: checking for dnet_ntoa in -ldnet" >&5
+echo "configure:3826: checking for dnet_ntoa in -ldnet" >&5
 ac_lib_var=`echo dnet'_'dnet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3785,7 +3830,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldnet  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3789 "configure"
+#line 3834 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3796,7 +3841,7 @@ int main() {
 dnet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:3800: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3845: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3818,7 +3863,7 @@ fi
 
     if test $ac_cv_lib_dnet_dnet_ntoa = no; then
       echo $ac_n "checking for dnet_ntoa in -ldnet_stub""... $ac_c" 1>&6
-echo "configure:3822: checking for dnet_ntoa in -ldnet_stub" >&5
+echo "configure:3867: checking for dnet_ntoa in -ldnet_stub" >&5
 ac_lib_var=`echo dnet_stub'_'dnet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3826,7 +3871,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldnet_stub  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3830 "configure"
+#line 3875 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3837,7 +3882,7 @@ int main() {
 dnet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:3841: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3886: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3866,12 +3911,12 @@ fi
     # The nsl library prevents programs from opening the X display
     # on Irix 5.2, according to dickey@clark.net.
     echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:3870: checking for gethostbyname" >&5
+echo "configure:3915: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3875 "configure"
+#line 3920 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -3894,7 +3939,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3898: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3943: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -3915,7 +3960,7 @@ fi
 
     if test $ac_cv_func_gethostbyname = no; then
       echo $ac_n "checking for gethostbyname in -lnsl""... $ac_c" 1>&6
-echo "configure:3919: checking for gethostbyname in -lnsl" >&5
+echo "configure:3964: checking for gethostbyname in -lnsl" >&5
 ac_lib_var=`echo nsl'_'gethostbyname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3923,7 +3968,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3927 "configure"
+#line 3972 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3934,7 +3979,7 @@ int main() {
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:3938: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3983: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3964,12 +4009,12 @@ fi
     # -lsocket must be given before -lnsl if both are needed.
     # We assume that if connect needs -lnsl, so does gethostbyname.
     echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:3968: checking for connect" >&5
+echo "configure:4013: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3973 "configure"
+#line 4018 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -3992,7 +4037,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3996: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4041: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_connect=yes"
 else
@@ -4013,7 +4058,7 @@ fi
 
     if test $ac_cv_func_connect = no; then
       echo $ac_n "checking for connect in -lsocket""... $ac_c" 1>&6
-echo "configure:4017: checking for connect in -lsocket" >&5
+echo "configure:4062: checking for connect in -lsocket" >&5
 ac_lib_var=`echo socket'_'connect | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4021,7 +4066,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket $X_EXTRA_LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4025 "configure"
+#line 4070 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4032,7 +4077,7 @@ int main() {
 connect()
 ; return 0; }
 EOF
-if { (eval echo configure:4036: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4081: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4056,12 +4101,12 @@ fi
 
     # gomez@mi.uni-erlangen.de says -lposix is necessary on A/UX.
     echo $ac_n "checking for remove""... $ac_c" 1>&6
-echo "configure:4060: checking for remove" >&5
+echo "configure:4105: checking for remove" >&5
 if eval "test \"`echo '$''{'ac_cv_func_remove'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4065 "configure"
+#line 4110 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char remove(); below.  */
@@ -4084,7 +4129,7 @@ remove();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4088: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4133: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_remove=yes"
 else
@@ -4105,7 +4150,7 @@ fi
 
     if test $ac_cv_func_remove = no; then
       echo $ac_n "checking for remove in -lposix""... $ac_c" 1>&6
-echo "configure:4109: checking for remove in -lposix" >&5
+echo "configure:4154: checking for remove in -lposix" >&5
 ac_lib_var=`echo posix'_'remove | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4113,7 +4158,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lposix  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4117 "configure"
+#line 4162 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4124,7 +4169,7 @@ int main() {
 remove()
 ; return 0; }
 EOF
-if { (eval echo configure:4128: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4173: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4148,12 +4193,12 @@ fi
 
     # BSDI BSD/OS 2.1 needs -lipc for XOpenDisplay.
     echo $ac_n "checking for shmat""... $ac_c" 1>&6
-echo "configure:4152: checking for shmat" >&5
+echo "configure:4197: checking for shmat" >&5
 if eval "test \"`echo '$''{'ac_cv_func_shmat'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4157 "configure"
+#line 4202 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char shmat(); below.  */
@@ -4176,7 +4221,7 @@ shmat();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4180: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4225: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_shmat=yes"
 else
@@ -4197,7 +4242,7 @@ fi
 
     if test $ac_cv_func_shmat = no; then
       echo $ac_n "checking for shmat in -lipc""... $ac_c" 1>&6
-echo "configure:4201: checking for shmat in -lipc" >&5
+echo "configure:4246: checking for shmat in -lipc" >&5
 ac_lib_var=`echo ipc'_'shmat | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4205,7 +4250,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lipc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4209 "configure"
+#line 4254 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4216,7 +4261,7 @@ int main() {
 shmat()
 ; return 0; }
 EOF
-if { (eval echo configure:4220: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4265: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4249,7 +4294,7 @@ fi
   # libraries we check for below, so use a different variable.
   #  --interran@uluru.Stanford.EDU, kb@cs.umb.edu.
   echo $ac_n "checking for IceConnectionNumber in -lICE""... $ac_c" 1>&6
-echo "configure:4253: checking for IceConnectionNumber in -lICE" >&5
+echo "configure:4298: checking for IceConnectionNumber in -lICE" >&5
 ac_lib_var=`echo ICE'_'IceConnectionNumber | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4257,7 +4302,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lICE $X_EXTRA_LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4261 "configure"
+#line 4306 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4268,7 +4313,7 @@ int main() {
 IceConnectionNumber()
 ; return 0; }
 EOF
-if { (eval echo configure:4272: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4317: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4305,7 +4350,7 @@ X_BASIC_LIBS="-lXext -lX11"
 our_saved_LDFLAGS="$LDFLAGS"
 LDFLAGS="$X_LIBS $LDFLAGS"
 echo $ac_n "checking for XtToolkitThreadInitialize in -lXt""... $ac_c" 1>&6
-echo "configure:4309: checking for XtToolkitThreadInitialize in -lXt" >&5
+echo "configure:4354: checking for XtToolkitThreadInitialize in -lXt" >&5
 ac_lib_var=`echo Xt'_'XtToolkitThreadInitialize | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4313,7 +4358,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXt $X_PRE_LIBS $X_BASIC_LIBS $X_EXTRA_LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4317 "configure"
+#line 4362 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4324,7 +4369,7 @@ int main() {
 XtToolkitThreadInitialize()
 ; return 0; }
 EOF
-if { (eval echo configure:4328: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4373: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4352,7 +4397,7 @@ LDFLAGS="$our_saved_LDFLAGS"
 our_saved_LDFLAGS="$LDFLAGS"
 LDFLAGS="$X_LIBS $LDFLAGS"
 echo $ac_n "checking for XdbeQueryExtension in -lXext""... $ac_c" 1>&6
-echo "configure:4356: checking for XdbeQueryExtension in -lXext" >&5
+echo "configure:4401: checking for XdbeQueryExtension in -lXext" >&5
 ac_lib_var=`echo Xext'_'XdbeQueryExtension | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4360,7 +4405,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXext -lX11 "$X_EXTRA_LIBS" $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4364 "configure"
+#line 4409 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4371,7 +4416,7 @@ int main() {
 XdbeQueryExtension()
 ; return 0; }
 EOF
-if { (eval echo configure:4375: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4420: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4395,7 +4440,7 @@ else
 fi
 
 echo $ac_n "checking for XmbufQueryExtension in -lXext""... $ac_c" 1>&6
-echo "configure:4399: checking for XmbufQueryExtension in -lXext" >&5
+echo "configure:4444: checking for XmbufQueryExtension in -lXext" >&5
 ac_lib_var=`echo Xext'_'XmbufQueryExtension | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4403,7 +4448,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXext -lX11 "$X_EXTRA_LIBS" $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4407 "configure"
+#line 4452 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4414,7 +4459,7 @@ int main() {
 XmbufQueryExtension()
 ; return 0; }
 EOF
-if { (eval echo configure:4418: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4463: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4444,17 +4489,17 @@ for ac_hdr in X11/extensions/Xdbe.h X11/extensions/multibuf.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4448: checking for $ac_hdr" >&5
+echo "configure:4493: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4453 "configure"
+#line 4498 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4458: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4503: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4498,7 +4543,7 @@ my_includes="$my_includes -I../include -I.. -I/usr/local/include"
 LDFLAGS="$LDFLAGS -L/usr/local/lib"
 
 echo $ac_n "checking for X""... $ac_c" 1>&6
-echo "configure:4502: checking for X" >&5
+echo "configure:4547: checking for X" >&5
 if test "$no_x" != "yes" ; then
   cat >> confdefs.h <<\EOF
 #define HAVE_SGP 1
@@ -4564,7 +4609,7 @@ if test "$ctn" = "true"; then
 fi
 
 echo $ac_n "checking for main in -ldmallocxx""... $ac_c" 1>&6
-echo "configure:4568: checking for main in -ldmallocxx" >&5
+echo "configure:4613: checking for main in -ldmallocxx" >&5
 ac_lib_var=`echo dmallocxx'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4572,14 +4617,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldmallocxx  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4576 "configure"
+#line 4621 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4583: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4628: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4601,7 +4646,7 @@ dmallocxx=false
 fi
 
 echo $ac_n "checking for enable-dmalloc""... $ac_c" 1>&6
-echo "configure:4605: checking for enable-dmalloc" >&5
+echo "configure:4650: checking for enable-dmalloc" >&5
 # Check whether --enable-dmalloc or --disable-dmalloc was given.
 if test "${enable_dmalloc+set}" = set; then
   enableval="$enable_dmalloc"
diff --git a/configure.in b/configure.in
index 88722de..9e071f6 100644
--- a/configure.in
+++ b/configure.in
@@ -48,6 +48,7 @@ AC_CHECK_LIB(wx, main, [wxwin=true; wx_msw=true; AC_DEFINE(HAVE_WXWINDOWS)])
 AC_CHECK_LIB(hdf5, main, [hdf5=true], [hdf5=false], -lz)
 AC_CHECK_LIB(fftw, fftw_one, [fftw=true; AC_DEFINE(HAVE_FFTW)], [fftw=false])
 AC_CHECK_LIB(GL, main, [libgl=true], [libgl=false])
+AC_CHECK_LIB(pthread, main, [pthread=true], [pthread=false])
 
 if test "$zlib" = "true" ; then
   AC_CHECK_LIB(png, main, [png=true ; AC_DEFINE(HAVE_PNG)], [png=false])
@@ -131,6 +132,10 @@ fi
 AC_MSG_RESULT(no)
 
 
+if test "${pthread}" = "true" ; then
+  AC_ADD_GCC_CFLAGS([-pthread])
+fi
+
 AC_ADD_GCC_CFLAGS([-Wall])
 AC_MSG_CHECKING(whether to enable verbose warnings)
 AC_ARG_ENABLE(verbose-warnings,
diff --git a/src/dialogs.cpp b/src/dialogs.cpp
index 860841a..9864dc0 100644
--- a/src/dialogs.cpp
+++ b/src/dialogs.cpp
@@ -9,7 +9,7 @@
 **  This is part of the CTSim program
 **  Copyright (c) 1983-2001 Kevin Rosenberg
 **
-**  $Id: dialogs.cpp,v 1.47 2001/03/05 20:29:23 kevin Exp $
+**  $Id: dialogs.cpp,v 1.48 2001/03/07 21:18:50 kevin Exp $
 **
 **  This program is free software; you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License (version 2) as
@@ -104,7 +104,7 @@ StringValueAndTitleRadioBox::getSelectionStringValue () const
 ///////////////////////////////////////////////////////////////////////
 
 DialogGetPhantom::DialogGetPhantom (wxWindow* pParent, int iDefaultPhantom)
-: wxDialog (pParent, -1, "Select Phantom", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T("Select Phantom"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -218,7 +218,7 @@ DialogGetComparisonImage::getMakeDifferenceImage()
 
 DialogPreferences::DialogPreferences (wxWindow* pParent, const char* const pszTitle, 
                    bool bAdvancedOptions, bool bAskDeleteNewDocs, bool bVerboseLogging, bool bStartupTips, bool bUseBackgroundTasks)
-: wxDialog (pParent, -1, pszTitle, wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T(pszTitle), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -311,7 +311,7 @@ DialogPreferences::getUseBackgroundTasks ()
 /////////////////////////////////////////////////////////////////////
 
 DialogGetMinMax::DialogGetMinMax (wxWindow* pParent, const char* const pszTitle, double dDefaultMin, double dDefaultMax)
-: wxDialog (pParent, -1, pszTitle, wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T(pszTitle), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -384,7 +384,7 @@ DialogGetMinMax::getMaximum ()
 /////////////////////////////////////////////////////////////////////
 
 DialogAutoScaleParameters::DialogAutoScaleParameters (wxWindow *pParent, double mean, double mode, double median, double stddev, double dDefaultScaleFactor)
-: wxDialog (pParent, -1, "Auto Scale Parameters", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION), m_dMean(mean), m_dMode(mode), m_dMedian(median), m_dStdDev(stddev)
+: wxDialog (pParent, -1, _T("Auto Scale Parameters"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION), m_dMean(mean), m_dMode(mode), m_dMedian(median), m_dStdDev(stddev)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -471,7 +471,7 @@ DialogAutoScaleParameters::getAutoScaleFactor ()
 
 DialogGetRasterParameters::DialogGetRasterParameters 
    (wxWindow* pParent, int iDefaultXSize, int iDefaultYSize, int iDefaultNSamples, double dDefaultViewRatio)
-: wxDialog (pParent, -1, "Set Rasterization Parameters", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T("Set Rasterization Parameters"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -583,7 +583,7 @@ DialogGetProjectionParameters::DialogGetProjectionParameters
    (wxWindow* pParent, int iDefaultNDet, int iDefaultNView, int iDefaultNSamples, 
     double dDefaultRotAngle, double dDefaultFocalLength, double dDefaultCenterDetectorLength,
     double dDefaultViewRatio, double dDefaultScanRatio, int iDefaultGeometry, int iDefaultTrace)
-: wxDialog (pParent, -1, "Set Projection Parameters", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T("Set Projection Parameters"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -811,7 +811,7 @@ DialogGetReconstructionParameters::DialogGetReconstructionParameters (wxWindow*
                      int iDefaultYSize, int iDefaultFilterID, double dDefaultHammingParam,  
                      int iDefaultFilterMethodID, int iDefaultFilterGenerationID, int iDefaultZeropad, 
                      int iDefaultInterpID, int iDefaultInterpParam, int iDefaultBackprojectID, int iTrace)
-: wxDialog (pParent, -1, "Set Reconstruction Parameters", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T("Set Reconstruction Parameters"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -1058,7 +1058,7 @@ DialogGetReconstructionParameters::getFilterGenerationName ()
 
 
 DialogGetFilterParameters::DialogGetFilterParameters (wxWindow* pParent, int iDefaultXSize, int iDefaultYSize, int iDefaultFilterID, double dDefaultFilterParam,  double dDefaultBandwidth, int iDefaultDomainID, double dDefaultInputScale, double dDefaultOutputScale)
-: wxDialog (pParent, -1, "Set Filter Parameters", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T("Set Filter Parameters"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -1223,7 +1223,7 @@ DialogGetFilterParameters::getDomainName ()
 ///////////////////////////////////////////////////////////////////////
 
 DialogExportParameters::DialogExportParameters (wxWindow* pParent, int iDefaultFormatID)
-: wxDialog (pParent, -1, "Select ExportParameters", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T("Select ExportParameters"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -1268,7 +1268,7 @@ DialogExportParameters::getFormatName()
 ///////////////////////////////////////////////////////////////////////
 
 DialogImportParameters::DialogImportParameters (wxWindow* pParent, int iDefaultFormatID)
-: wxDialog (pParent, -1, "Select ImportParameters", wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T("Select Import Parameters"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   wxBoxSizer* pTopSizer = new wxBoxSizer (wxVERTICAL);
   
@@ -1312,7 +1312,7 @@ DialogImportParameters::getFormatName()
 /////////////////////////////////////////////////////////////////////
 
 DialogGetXYSize::DialogGetXYSize (wxWindow* pParent, const char* const pszTitle, int iDefaultXSize, int iDefaultYSize)
-: wxDialog (pParent, -1, pszTitle, wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T(pszTitle), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   m_iDefaultXSize = iDefaultXSize;
   m_iDefaultYSize = iDefaultYSize;
@@ -1390,7 +1390,7 @@ DialogGetXYSize::getYSize ()
 
 DialogGetConvertPolarParameters::DialogGetConvertPolarParameters (wxWindow* pParent, const char* const pszTitle, 
        int iDefaultXSize, int iDefaultYSize, int iDefaultInterpolationID, int iDefaultZeropad)
-: wxDialog (pParent, -1, pszTitle, wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
+: wxDialog (pParent, -1, _T(pszTitle), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxCAPTION)
 {
   m_iDefaultXSize = iDefaultXSize;
   m_iDefaultYSize = iDefaultYSize;
diff --git a/src/threadproj.cpp b/src/threadproj.cpp
index b44cc26..f967269 100644
--- a/src/threadproj.cpp
+++ b/src/threadproj.cpp
@@ -9,7 +9,7 @@
 **  This is part of the CTSim program
 **  Copyright (C) 1983-2001 Kevin Rosenberg
 **
-**  $Id: threadproj.cpp,v 1.14 2001/03/05 17:26:46 kevin Exp $
+**  $Id: threadproj.cpp,v 1.15 2001/03/07 21:18:50 kevin Exp $
 **
 **  This program is free software; you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License (version 2) as
@@ -87,7 +87,7 @@ ProjectorSupervisorThread::Entry()
 	  projSupervisor.onDone();
   projSupervisor.deleteWorkers();
 
-  return reinterpret_cast<wxThread::ExitCode>(0);
+  return static_cast<wxThread::ExitCode>(0);
 }
 
 void
diff --git a/src/threadraster.cpp b/src/threadraster.cpp
index 8a93fac..b45875d 100644
--- a/src/threadraster.cpp
+++ b/src/threadraster.cpp
@@ -9,7 +9,7 @@
 **  This is part of the CTSim program
 **  Copyright (C) 1983-2001 Kevin Rosenberg
 **
-**  $Id: threadraster.cpp,v 1.11 2001/03/05 20:29:23 kevin Exp $
+**  $Id: threadraster.cpp,v 1.12 2001/03/07 21:18:50 kevin Exp $
 **
 **  This program is free software; you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License (version 2) as
@@ -87,7 +87,7 @@ RasterizerSupervisorThread::Entry()
     rasterSupervisor.onDone();
   rasterSupervisor.deleteWorkers();
 
-  return reinterpret_cast<wxThread::ExitCode>(0);
+    return static_cast<wxThread::ExitCode>(0);
 }
 
 void
@@ -217,7 +217,7 @@ RasterizerWorker::Entry ()
   while (! TestDestroy())
     Sleep(100);
 
-  return reinterpret_cast<wxThread::ExitCode>(0);
+  return static_cast<wxThread::ExitCode>(0);
 }
 
 void
diff --git a/src/threadrecon.cpp b/src/threadrecon.cpp
index a3134a3..519fcb0 100644
--- a/src/threadrecon.cpp
+++ b/src/threadrecon.cpp
@@ -9,7 +9,7 @@
 **  This is part of the CTSim program
 **  Copyright (C) 1983-2001 Kevin Rosenberg
 **
-**  $Id: threadrecon.cpp,v 1.21 2001/03/05 17:26:46 kevin Exp $
+**  $Id: threadrecon.cpp,v 1.22 2001/03/07 21:18:50 kevin Exp $
 **
 **  This program is free software; you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License (version 2) as
@@ -86,7 +86,7 @@ ReconstructorSupervisorThread::Entry()
 	  reconSupervisor.onDone();
   reconSupervisor.deleteWorkers();
 
-  return reinterpret_cast<wxThread::ExitCode>(0);
+  return static_cast<wxThread::ExitCode>(0);
 }
 
 void
@@ -105,12 +105,12 @@ ReconstructorSupervisor::ReconstructorSupervisor (SupervisorThread* pThread, Pro
   int iImageNX, int iImageNY, const char* pszFilterName, double dFilterParam, const char* pszFilterMethod, 
   int iZeropad, const char* pszFilterGenerationName, const char* pszInterpName, int iInterpParam,
   const char* pszBackprojectName, const char* const pszLabel)
-    : m_pProjView(pProjView), m_pProjDoc(pProjView->GetDocument()), 
+    : BackgroundSupervisor (pThread, pProjView->GetFrame(), pProjView->GetDocument(), "Reconstructing", pProjView->GetDocument()->getProjections().nView()),
+      m_pProjView(pProjView), m_pProjDoc(pProjView->GetDocument()), 
       m_iImageNX(iImageNX), m_iImageNY(iImageNY), 
       m_pszFilterName(pszFilterName), m_dFilterParam(dFilterParam), m_pszFilterMethod(pszFilterMethod),
       m_iZeropad(iZeropad), m_pszFilterGenerationName(pszFilterGenerationName), m_pszInterpName(pszInterpName),
-      m_iInterpParam(iInterpParam), m_pszBackprojectName(pszBackprojectName), m_pszLabel(pszLabel), 
-      BackgroundSupervisor (pThread, pProjView->GetFrame(), pProjView->GetDocument(), "Reconstructing", pProjView->GetDocument()->getProjections().nView())
+      m_iInterpParam(iInterpParam), m_pszBackprojectName(pszBackprojectName), m_pszLabel(pszLabel) 
 {
   m_vecpChildImageFile.reserve (getNumWorkers());
   for (int iThread = 0; iThread < getNumWorkers(); iThread++) {
-- 
2.34.1