diff --git a/configure b/configure
index c31dd1d362..ff17cf91db 100755
--- a/configure
+++ b/configure
@@ -1481,7 +1481,7 @@ else
   if { (eval echo configure:1482: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
     for file in conftest.*; do
       case $file in
-      *.c | *.C | *.o | *.obj) ;;
+      *.c | *.o | *.obj) ;;
       *) ac_cv_exeext=`echo $file | sed -e s/conftest//` ;;
       esac
     done
@@ -8279,13 +8279,173 @@ cat >> confdefs.h <<EOF
 EOF
 
 
+# Some platforms predefine the types int8, int16, etc.  Only check
+# a (hopefully) representative subset.  Don't use AC_CHECK_TYPE, which
+# doesn't work the way we want to.
+echo $ac_n "checking size of int8""... $ac_c" 1>&6
+echo "configure:8287: checking size of int8" >&5
+if eval "test \"`echo '$''{'ac_cv_sizeof_int8'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_sizeof_int8=0
+else
+  cat > conftest.$ac_ext <<EOF
+#line 8295 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+main()
+{
+  FILE *f=fopen("conftestval", "w");
+  if (!f) exit(1);
+  fprintf(f, "%d\n", sizeof(int8));
+  exit(0);
+}
+EOF
+if { (eval echo configure:8306: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_sizeof_int8=`cat conftestval`
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_sizeof_int8=0
+fi
+rm -fr conftest*
+fi
+
+fi
+echo "$ac_t""$ac_cv_sizeof_int8" 1>&6
+cat >> confdefs.h <<EOF
+#define SIZEOF_INT8 $ac_cv_sizeof_int8
+EOF
+
+
+echo $ac_n "checking size of uint8""... $ac_c" 1>&6
+echo "configure:8326: checking size of uint8" >&5
+if eval "test \"`echo '$''{'ac_cv_sizeof_uint8'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_sizeof_uint8=0
+else
+  cat > conftest.$ac_ext <<EOF
+#line 8334 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+main()
+{
+  FILE *f=fopen("conftestval", "w");
+  if (!f) exit(1);
+  fprintf(f, "%d\n", sizeof(uint8));
+  exit(0);
+}
+EOF
+if { (eval echo configure:8345: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_sizeof_uint8=`cat conftestval`
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_sizeof_uint8=0
+fi
+rm -fr conftest*
+fi
+
+fi
+echo "$ac_t""$ac_cv_sizeof_uint8" 1>&6
+cat >> confdefs.h <<EOF
+#define SIZEOF_UINT8 $ac_cv_sizeof_uint8
+EOF
+
+
+echo $ac_n "checking size of int64""... $ac_c" 1>&6
+echo "configure:8365: checking size of int64" >&5
+if eval "test \"`echo '$''{'ac_cv_sizeof_int64'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_sizeof_int64=0
+else
+  cat > conftest.$ac_ext <<EOF
+#line 8373 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+main()
+{
+  FILE *f=fopen("conftestval", "w");
+  if (!f) exit(1);
+  fprintf(f, "%d\n", sizeof(int64));
+  exit(0);
+}
+EOF
+if { (eval echo configure:8384: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_sizeof_int64=`cat conftestval`
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_sizeof_int64=0
+fi
+rm -fr conftest*
+fi
+
+fi
+echo "$ac_t""$ac_cv_sizeof_int64" 1>&6
+cat >> confdefs.h <<EOF
+#define SIZEOF_INT64 $ac_cv_sizeof_int64
+EOF
+
+
+echo $ac_n "checking size of uint64""... $ac_c" 1>&6
+echo "configure:8404: checking size of uint64" >&5
+if eval "test \"`echo '$''{'ac_cv_sizeof_uint64'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_sizeof_uint64=0
+else
+  cat > conftest.$ac_ext <<EOF
+#line 8412 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+main()
+{
+  FILE *f=fopen("conftestval", "w");
+  if (!f) exit(1);
+  fprintf(f, "%d\n", sizeof(uint64));
+  exit(0);
+}
+EOF
+if { (eval echo configure:8423: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_sizeof_uint64=`cat conftestval`
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_sizeof_uint64=0
+fi
+rm -fr conftest*
+fi
+
+fi
+echo "$ac_t""$ac_cv_sizeof_uint64" 1>&6
+cat >> confdefs.h <<EOF
+#define SIZEOF_UINT64 $ac_cv_sizeof_uint64
+EOF
+
+
+
 echo $ac_n "checking for POSIX signal interface""... $ac_c" 1>&6
-echo "configure:8284: checking for POSIX signal interface" >&5
+echo "configure:8444: checking for POSIX signal interface" >&5
 if eval "test \"`echo '$''{'pgac_cv_func_posix_signals'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8289 "configure"
+#line 8449 "configure"
 #include "confdefs.h"
 #include <signal.h>
 
@@ -8296,7 +8456,7 @@ act.sa_flags = SA_RESTART;
 sigaction(0, &act, &oact);
 ; return 0; }
 EOF
-if { (eval echo configure:8300: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8460: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   pgac_cv_func_posix_signals=yes
 else
@@ -8326,7 +8486,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:8330: checking for $ac_word" >&5
+echo "configure:8490: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_TCLSH'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8362,7 +8522,7 @@ test -n "$TCLSH" && break
 done
 
 echo $ac_n "checking for tclConfig.sh""... $ac_c" 1>&6
-echo "configure:8366: checking for tclConfig.sh" >&5
+echo "configure:8526: checking for tclConfig.sh" >&5
 # Let user override test
 if test -z "$TCL_CONFIG_SH"; then
     pgac_test_dirs="$with_tclconfig"
@@ -8395,7 +8555,7 @@ fi
 # Check for Tk configuration script tkConfig.sh
 if test "$with_tk" = yes; then
     echo $ac_n "checking for tkConfig.sh""... $ac_c" 1>&6
-echo "configure:8399: checking for tkConfig.sh" >&5
+echo "configure:8559: checking for tkConfig.sh" >&5
 # Let user override test
 if test -z "$TK_CONFIG_SH"; then
     pgac_test_dirs="$with_tkconfig $with_tclconfig"
@@ -8434,7 +8594,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:8438: checking for $ac_word" >&5
+echo "configure:8598: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_NSGMLS'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8470,7 +8630,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:8474: checking for $ac_word" >&5
+echo "configure:8634: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_JADE'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8501,7 +8661,7 @@ done
 
   
 echo $ac_n "checking for DocBook V3.1""... $ac_c" 1>&6
-echo "configure:8505: checking for DocBook V3.1" >&5
+echo "configure:8665: checking for DocBook V3.1" >&5
 if eval "test \"`echo '$''{'pgac_cv_check_docbook'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8534,7 +8694,7 @@ have_docbook=$pgac_cv_check_docbook
 
 
   echo $ac_n "checking for DocBook stylesheets""... $ac_c" 1>&6
-echo "configure:8538: checking for DocBook stylesheets" >&5
+echo "configure:8698: checking for DocBook stylesheets" >&5
 if eval "test \"`echo '$''{'pgac_cv_path_stylesheets'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8573,7 +8733,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:8577: checking for $ac_word" >&5
+echo "configure:8737: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_SGMLSPL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else