Cleaner autoconf tests for int8 support.

diff --git a/src/configure b/src/configure
index fea71c3..f090b35 100755 (executable)
--- a/src/configure
+++ b/src/configure
@@ -4350,13 +4350,14 @@ else
 fi
 done
 
+SNPRINTF=''
 echo $ac_n "checking for snprintf""... $ac_c" 1>&6
-echo "configure:4355: checking for snprintf" >&5
+echo "configure:4356: checking for snprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_snprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4360 "configure"
+#line 4361 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char snprintf(); below.  */
@@ -4379,7 +4380,7 @@ snprintf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4383: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4384: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_snprintf=yes"
 else
@@ -4403,12 +4404,12 @@ SNPRINTF='snprintf.o'
 fi
 
 echo $ac_n "checking for vsnprintf""... $ac_c" 1>&6
-echo "configure:4407: checking for vsnprintf" >&5
+echo "configure:4408: checking for vsnprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vsnprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4412 "configure"
+#line 4413 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char vsnprintf(); below.  */
@@ -4431,7 +4432,7 @@ vsnprintf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4435: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4436: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_vsnprintf=yes"
 else
@@ -4456,12 +4457,12 @@ fi
 
 
 echo $ac_n "checking for isinf""... $ac_c" 1>&6
-echo "configure:4460: checking for isinf" >&5
+echo "configure:4461: checking for isinf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_isinf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4465 "configure"
+#line 4466 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char isinf(); below.  */
@@ -4484,7 +4485,7 @@ isinf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4488: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4489: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_isinf=yes"
 else
@@ -4509,12 +4510,12 @@ fi
 
 
 echo $ac_n "checking for getrusage""... $ac_c" 1>&6
-echo "configure:4513: checking for getrusage" >&5
+echo "configure:4514: checking for getrusage" >&5
 if eval "test \"`echo '$''{'ac_cv_func_getrusage'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4518 "configure"
+#line 4519 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char getrusage(); below.  */
@@ -4537,7 +4538,7 @@ getrusage();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4541: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4542: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_getrusage=yes"
 else
@@ -4562,12 +4563,12 @@ fi
 
 
 echo $ac_n "checking for srandom""... $ac_c" 1>&6
-echo "configure:4566: checking for srandom" >&5
+echo "configure:4567: checking for srandom" >&5
 if eval "test \"`echo '$''{'ac_cv_func_srandom'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4571 "configure"
+#line 4572 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char srandom(); below.  */
@@ -4590,7 +4591,7 @@ srandom();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4594: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4595: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_srandom=yes"
 else
@@ -4615,12 +4616,12 @@ fi
 
 
 echo $ac_n "checking for gethostname""... $ac_c" 1>&6
-echo "configure:4619: checking for gethostname" >&5
+echo "configure:4620: checking for gethostname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4624 "configure"
+#line 4625 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostname(); below.  */
@@ -4643,7 +4644,7 @@ gethostname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4647: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4648: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_gethostname=yes"
 else
@@ -4668,12 +4669,12 @@ fi
 
 
 echo $ac_n "checking for random""... $ac_c" 1>&6
-echo "configure:4672: checking for random" >&5
+echo "configure:4673: checking for random" >&5
 if eval "test \"`echo '$''{'ac_cv_func_random'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4677 "configure"
+#line 4678 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char random(); below.  */
@@ -4696,7 +4697,7 @@ random();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4700: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4701: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_random=yes"
 else
@@ -4721,12 +4722,12 @@ fi
 
 
 echo $ac_n "checking for inet_aton""... $ac_c" 1>&6
-echo "configure:4725: checking for inet_aton" >&5
+echo "configure:4726: checking for inet_aton" >&5
 if eval "test \"`echo '$''{'ac_cv_func_inet_aton'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4730 "configure"
+#line 4731 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char inet_aton(); below.  */
@@ -4749,7 +4750,7 @@ inet_aton();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4753: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4754: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_inet_aton=yes"
 else
@@ -4774,12 +4775,12 @@ fi
 
 
 echo $ac_n "checking for strerror""... $ac_c" 1>&6
-echo "configure:4778: checking for strerror" >&5
+echo "configure:4779: checking for strerror" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strerror'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4783 "configure"
+#line 4784 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strerror(); below.  */
@@ -4802,7 +4803,7 @@ strerror();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4806: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4807: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_strerror=yes"
 else
@@ -4828,12 +4829,12 @@ fi
 
 
 echo $ac_n "checking for strdup""... $ac_c" 1>&6
-echo "configure:4832: checking for strdup" >&5
+echo "configure:4833: checking for strdup" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strdup'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4837 "configure"
+#line 4838 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strdup(); below.  */
@@ -4856,7 +4857,7 @@ strdup();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4860: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4861: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_strdup=yes"
 else
@@ -4881,12 +4882,12 @@ fi
 
 
 echo $ac_n "checking for strtol""... $ac_c" 1>&6
-echo "configure:4885: checking for strtol" >&5
+echo "configure:4886: checking for strtol" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtol'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4890 "configure"
+#line 4891 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtol(); below.  */
@@ -4909,7 +4910,7 @@ strtol();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4913: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4914: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_strtol=yes"
 else
@@ -4934,12 +4935,12 @@ fi
 
 
 echo $ac_n "checking for strtoul""... $ac_c" 1>&6
-echo "configure:4938: checking for strtoul" >&5
+echo "configure:4939: checking for strtoul" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtoul'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4943 "configure"
+#line 4944 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtoul(); below.  */
@@ -4962,7 +4963,7 @@ strtoul();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4966: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:4967: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_strtoul=yes"
 else
@@ -4987,12 +4988,12 @@ fi
 
 
 echo $ac_n "checking for strcasecmp""... $ac_c" 1>&6
-echo "configure:4991: checking for strcasecmp" >&5
+echo "configure:4992: checking for strcasecmp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strcasecmp'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4996 "configure"
+#line 4997 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strcasecmp(); below.  */
@@ -5015,7 +5016,7 @@ strcasecmp();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5019: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5020: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_strcasecmp=yes"
 else
@@ -5040,12 +5041,12 @@ fi
 
 
 echo $ac_n "checking for cbrt""... $ac_c" 1>&6
-echo "configure:5044: checking for cbrt" >&5
+echo "configure:5045: checking for cbrt" >&5
 if eval "test \"`echo '$''{'ac_cv_func_cbrt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5049 "configure"
+#line 5050 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char cbrt(); below.  */
@@ -5068,7 +5069,7 @@ cbrt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5072: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5073: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_cbrt=yes"
 else
@@ -5089,7 +5090,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for cbrt in -lm""... $ac_c" 1>&6
-echo "configure:5093: checking for cbrt in -lm" >&5
+echo "configure:5094: checking for cbrt in -lm" >&5
 ac_lib_var=`echo m'_'cbrt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5097,7 +5098,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5101 "configure"
+#line 5102 "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
@@ -5108,7 +5109,7 @@ int main() {
 cbrt()
 ; return 0; }
 EOF
-if { (eval echo configure:5112: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5113: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5138,12 +5139,12 @@ fi
 # this hackery with HPUXMATHLIB allows us to cope.
 HPUXMATHLIB=""
 echo $ac_n "checking for rint""... $ac_c" 1>&6
-echo "configure:5142: checking for rint" >&5
+echo "configure:5143: checking for rint" >&5
 if eval "test \"`echo '$''{'ac_cv_func_rint'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5147 "configure"
+#line 5148 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char rint(); below.  */
@@ -5166,7 +5167,7 @@ rint();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5170: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5171: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_rint=yes"
 else
@@ -5191,7 +5192,7 @@ if [ -r /lib/pa1.1/libm.a ] ; then
     HPUXMATHLIB="-L /lib/pa1.1 -lm"
 fi
              echo $ac_n "checking for rint in -lm""... $ac_c" 1>&6
-echo "configure:5195: checking for rint in -lm" >&5
+echo "configure:5196: checking for rint in -lm" >&5
 ac_lib_var=`echo m'_'rint | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5199,7 +5200,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm $HPUXMATHLIB $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5203 "configure"
+#line 5204 "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
@@ -5210,7 +5211,7 @@ int main() {
 rint()
 ; return 0; }
 EOF
-if { (eval echo configure:5214: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5215: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5239,38 +5240,32 @@ fi
 
 
 
+HAVE_LONG_INT_64=0
 echo $ac_n "checking whether 'long int' is 64 bits""... $ac_c" 1>&6
-echo "configure:5244: checking whether 'long int' is 64 bits" >&5
+echo "configure:5246: checking whether 'long int' is 64 bits" >&5
 if test "$cross_compiling" = yes; then
   echo "$ac_t""assuming not on target machine" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5249 "configure"
+#line 5251 "configure"
 #include "confdefs.h"
-#include <stdio.h>
 typedef long int int64;
-#define INT64_FORMAT "%ld"
 
+/* These are globals to discourage the compiler from folding all the
+ * arithmetic tests down to compile-time constants.
+ */
 int64 a = 20000001;
 int64 b = 40000005;
 
 int does_int64_work()
 {
   int64 c,d;
-  char buf[100];
 
   if (sizeof(int64) != 8)
     return 0;                  /* doesn't look like the right size */
 
-  /* we do perfunctory checks on multiply and divide,
-   * and also test snprintf if the platform provides snprintf.
-   */
+  /* Do perfunctory checks to see if 64-bit arithmetic seems to work */
   c = a * b;
-#if defined(HAVE_SNPRINTF) && defined(HAVE_VSNPRINTF)
-  snprintf(buf, 100, INT64_FORMAT, c);
-  if (strcmp(buf, "800000140000005") != 0)
-    return 0;                  /* either multiply or snprintf is busted */
-#endif
   d = (c + b) / b;
   if (d != a+1)
     return 0;
@@ -5280,12 +5275,14 @@ main() {
   exit(! does_int64_work());
 }
 EOF
-if { (eval echo configure:5284: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5279: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
-  cat >> confdefs.h <<\EOF
+  HAVE_LONG_INT_64=1
+        cat >> confdefs.h <<\EOF
 #define HAVE_LONG_INT_64 1
 EOF
- echo "$ac_t""yes" 1>&6
+
+        echo "$ac_t""yes" 1>&6
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
@@ -5296,38 +5293,33 @@ rm -fr conftest*
 fi
 
 
+HAVE_LONG_LONG_INT_64=0
+if [ $HAVE_LONG_INT_64 -eq 0 ] ; then
 echo $ac_n "checking whether 'long long int' is 64 bits""... $ac_c" 1>&6
-echo "configure:5301: checking whether 'long long int' is 64 bits" >&5
+echo "configure:5300: checking whether 'long long int' is 64 bits" >&5
 if test "$cross_compiling" = yes; then
   echo "$ac_t""assuming not on target machine" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5306 "configure"
+#line 5305 "configure"
 #include "confdefs.h"
-#include <stdio.h>
 typedef long long int int64;
-#define INT64_FORMAT "%lld"
 
+/* These are globals to discourage the compiler from folding all the
+ * arithmetic tests down to compile-time constants.
+ */
 int64 a = 20000001;
 int64 b = 40000005;
 
 int does_int64_work()
 {
   int64 c,d;
-  char buf[100];
 
   if (sizeof(int64) != 8)
     return 0;                  /* doesn't look like the right size */
 
-  /* we do perfunctory checks on multiply and divide,
-   * and also test snprintf if the platform provides snprintf.
-   */
+  /* Do perfunctory checks to see if 64-bit arithmetic seems to work */
   c = a * b;
-#if defined(HAVE_SNPRINTF) && defined(HAVE_VSNPRINTF)
-  snprintf(buf, 100, INT64_FORMAT, c);
-  if (strcmp(buf, "800000140000005") != 0)
-    return 0;                  /* either multiply or snprintf is busted */
-#endif
   d = (c + b) / b;
   if (d != a+1)
     return 0;
@@ -5337,12 +5329,14 @@ main() {
   exit(! does_int64_work());
 }
 EOF
-if { (eval echo configure:5341: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5333: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
 then
-  cat >> confdefs.h <<\EOF
+  HAVE_LONG_LONG_INT_64=1
+        cat >> confdefs.h <<\EOF
 #define HAVE_LONG_LONG_INT_64 1
 EOF
- echo "$ac_t""yes" 1>&6
+
+        echo "$ac_t""yes" 1>&6
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
@@ -5352,12 +5346,65 @@ fi
 rm -fr conftest*
 fi
 
+fi
+
+
+if [ x$SNPRINTF = x -a $HAVE_LONG_LONG_INT_64 -eq 1 ] ; then
+    echo $ac_n "checking whether snprintf handles 'long long int'""... $ac_c" 1>&6
+echo "configure:5355: checking whether snprintf handles 'long long int'" >&5
+    if test "$cross_compiling" = yes; then
+  SNPRINTF='snprintf.o'
+        echo "$ac_t""assuming not on target machine" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 5361 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+typedef long long int int64;
+#define INT64_FORMAT "%lld"
+
+int64 a = 20000001;
+int64 b = 40000005;
+
+int does_int64_snprintf_work()
+{
+  int64 c;
+  char buf[100];
+
+  if (sizeof(int64) != 8)
+    return 0;                  /* doesn't look like the right size */
+
+  c = a * b;
+  snprintf(buf, 100, INT64_FORMAT, c);
+  if (strcmp(buf, "800000140000005") != 0)
+    return 0;                  /* either multiply or snprintf is busted */
+  return 1;
+}
+main() {
+  exit(! does_int64_snprintf_work());
+}
+EOF
+if { (eval echo configure:5388: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
+  echo "$ac_t""yes" 1>&6
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  SNPRINTF='snprintf.o'
+        echo "$ac_t""no" 1>&6
+fi
+rm -fr conftest*
+fi
+
+fi
+
 
 
 echo $ac_n "checking for POSIX signal interface""... $ac_c" 1>&6
-echo "configure:5359: checking for POSIX signal interface" >&5
+echo "configure:5406: checking for POSIX signal interface" >&5
 cat > conftest.$ac_ext <<EOF
-#line 5361 "configure"
+#line 5408 "configure"
 #include "confdefs.h"
 #include <signal.h>
 int main() {
@@ -5367,7 +5414,7 @@ act.sa_flags = SA_RESTART;
 sigaction(0, &act, &oact);
 ; return 0; }
 EOF
-if { (eval echo configure:5371: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5418: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define USE_POSIX_SIGNALS 1
@@ -5391,7 +5438,7 @@ then
        # Extract the first word of "tclsh", so it can be a program name with args.
 set dummy tclsh; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:5395: checking for $ac_word" >&5
+echo "configure:5442: 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
@@ -5424,7 +5471,7 @@ fi
                # Extract the first word of "tcl", so it can be a program name with args.
 set dummy tcl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:5428: checking for $ac_word" >&5
+echo "configure:5475: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_TCLSH'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5463,7 +5510,7 @@ fi
 if test "$USE_TCL" = true
 then
        echo $ac_n "checking for tclConfig.sh""... $ac_c" 1>&6
-echo "configure:5467: checking for tclConfig.sh" >&5
+echo "configure:5514: checking for tclConfig.sh" >&5
        TCL_CONFIG_SH=
        library_dirs=
        if test -z "$TCL_DIRS"
@@ -5492,7 +5539,7 @@ USE_TK=$USE_TCL           # If TCL is disabled, disable TK
 if test "$USE_TK" = true
 then
        echo $ac_n "checking for tkConfig.sh""... $ac_c" 1>&6
-echo "configure:5496: checking for tkConfig.sh" >&5
+echo "configure:5543: checking for tkConfig.sh" >&5
        TK_CONFIG_SH=
        # library_dirs are set in the check for TCL
        for dir in $library_dirs
@@ -5529,7 +5576,7 @@ if test "$USE_X" = true; then
 # 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:5533: checking for X" >&5
+echo "configure:5580: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -5591,12 +5638,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 5595 "configure"
+#line 5642 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5600: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5647: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5665,14 +5712,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5669 "configure"
+#line 5716 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:5676: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5723: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -5778,17 +5825,17 @@ else
     case "`(uname -sr) 2>/dev/null`" in
     "SunOS 5"*)
       echo $ac_n "checking whether -R must be followed by a space""... $ac_c" 1>&6
-echo "configure:5782: checking whether -R must be followed by a space" >&5
+echo "configure:5829: checking whether -R must be followed by a space" >&5
       ac_xsave_LIBS="$LIBS"; LIBS="$LIBS -R$x_libraries"
       cat > conftest.$ac_ext <<EOF
-#line 5785 "configure"
+#line 5832 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:5792: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5839: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   ac_R_nospace=yes
 else
@@ -5804,14 +5851,14 @@ rm -f conftest*
       else
        LIBS="$ac_xsave_LIBS -R $x_libraries"
        cat > conftest.$ac_ext <<EOF
-#line 5808 "configure"
+#line 5855 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:5815: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5862: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   ac_R_space=yes
 else
@@ -5843,7 +5890,7 @@ 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""... $ac_c" 1>&6
-echo "configure:5847: checking for dnet_ntoa in -ldnet" >&5
+echo "configure:5894: checking for dnet_ntoa in -ldnet" >&5
 ac_lib_var=`echo dnet'_'dnet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5851,7 +5898,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldnet  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5855 "configure"
+#line 5902 "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
@@ -5862,7 +5909,7 @@ int main() {
 dnet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:5866: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5913: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5884,7 +5931,7 @@ fi
 
     if test $ac_cv_lib_dnet_dnet_ntoa = no; then
       echo $ac_n "checking for dnet_ntoa in -ldnet_stub""... $ac_c" 1>&6
-echo "configure:5888: checking for dnet_ntoa in -ldnet_stub" >&5
+echo "configure:5935: checking for dnet_ntoa in -ldnet_stub" >&5
 ac_lib_var=`echo dnet_stub'_'dnet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5892,7 +5939,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldnet_stub  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5896 "configure"
+#line 5943 "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
@@ -5903,7 +5950,7 @@ int main() {
 dnet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:5907: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:5954: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5932,12 +5979,12 @@ 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""... $ac_c" 1>&6
-echo "configure:5936: checking for gethostbyname" >&5
+echo "configure:5983: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5941 "configure"
+#line 5988 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -5960,7 +6007,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5964: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6011: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -5981,7 +6028,7 @@ fi
 
     if test $ac_cv_func_gethostbyname = no; then
       echo $ac_n "checking for gethostbyname in -lnsl""... $ac_c" 1>&6
-echo "configure:5985: checking for gethostbyname in -lnsl" >&5
+echo "configure:6032: checking for gethostbyname in -lnsl" >&5
 ac_lib_var=`echo nsl'_'gethostbyname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5989,7 +6036,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5993 "configure"
+#line 6040 "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
@@ -6000,7 +6047,7 @@ int main() {
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:6004: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6051: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6030,12 +6077,12 @@ 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""... $ac_c" 1>&6
-echo "configure:6034: checking for connect" >&5
+echo "configure:6081: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6039 "configure"
+#line 6086 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -6058,7 +6105,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6062: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6109: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_connect=yes"
 else
@@ -6079,7 +6126,7 @@ fi
 
     if test $ac_cv_func_connect = no; then
       echo $ac_n "checking for connect in -lsocket""... $ac_c" 1>&6
-echo "configure:6083: checking for connect in -lsocket" >&5
+echo "configure:6130: checking for connect in -lsocket" >&5
 ac_lib_var=`echo socket'_'connect | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6087,7 +6134,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket $X_EXTRA_LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6091 "configure"
+#line 6138 "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
@@ -6098,7 +6145,7 @@ int main() {
 connect()
 ; return 0; }
 EOF
-if { (eval echo configure:6102: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6149: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6122,12 +6169,12 @@ fi
 
     # gomez@mi.uni-erlangen.de says -lposix is necessary on A/UX.
     echo $ac_n "checking for remove""... $ac_c" 1>&6
-echo "configure:6126: checking for remove" >&5
+echo "configure:6173: checking for remove" >&5
 if eval "test \"`echo '$''{'ac_cv_func_remove'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6131 "configure"
+#line 6178 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char remove(); below.  */
@@ -6150,7 +6197,7 @@ remove();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6154: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6201: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_remove=yes"
 else
@@ -6171,7 +6218,7 @@ fi
 
     if test $ac_cv_func_remove = no; then
       echo $ac_n "checking for remove in -lposix""... $ac_c" 1>&6
-echo "configure:6175: checking for remove in -lposix" >&5
+echo "configure:6222: checking for remove in -lposix" >&5
 ac_lib_var=`echo posix'_'remove | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6179,7 +6226,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lposix  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6183 "configure"
+#line 6230 "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
@@ -6190,7 +6237,7 @@ int main() {
 remove()
 ; return 0; }
 EOF
-if { (eval echo configure:6194: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6241: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6214,12 +6261,12 @@ fi
 
     # BSDI BSD/OS 2.1 needs -lipc for XOpenDisplay.
     echo $ac_n "checking for shmat""... $ac_c" 1>&6
-echo "configure:6218: checking for shmat" >&5
+echo "configure:6265: checking for shmat" >&5
 if eval "test \"`echo '$''{'ac_cv_func_shmat'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6223 "configure"
+#line 6270 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char shmat(); below.  */
@@ -6242,7 +6289,7 @@ shmat();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6246: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6293: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_shmat=yes"
 else
@@ -6263,7 +6310,7 @@ fi
 
     if test $ac_cv_func_shmat = no; then
       echo $ac_n "checking for shmat in -lipc""... $ac_c" 1>&6
-echo "configure:6267: checking for shmat in -lipc" >&5
+echo "configure:6314: checking for shmat in -lipc" >&5
 ac_lib_var=`echo ipc'_'shmat | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6271,7 +6318,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lipc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6275 "configure"
+#line 6322 "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
@@ -6282,7 +6329,7 @@ int main() {
 shmat()
 ; return 0; }
 EOF
-if { (eval echo configure:6286: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6333: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6315,7 +6362,7 @@ 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""... $ac_c" 1>&6
-echo "configure:6319: checking for IceConnectionNumber in -lICE" >&5
+echo "configure:6366: checking for IceConnectionNumber in -lICE" >&5
 ac_lib_var=`echo ICE'_'IceConnectionNumber | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6323,7 +6370,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lICE  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6327 "configure"
+#line 6374 "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
@@ -6334,7 +6381,7 @@ int main() {
 IceConnectionNumber()
 ; return 0; }
 EOF
-if { (eval echo configure:6338: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6385: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6367,7 +6414,7 @@ fi
        
        X11_LIBS=""
        echo $ac_n "checking for XOpenDisplay in -lX11""... $ac_c" 1>&6
-echo "configure:6371: checking for XOpenDisplay in -lX11" >&5
+echo "configure:6418: checking for XOpenDisplay in -lX11" >&5
 ac_lib_var=`echo X11'_'XOpenDisplay | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6375,7 +6422,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lX11 ${X_PRE_LIBS} $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6379 "configure"
+#line 6426 "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
@@ -6386,7 +6433,7 @@ int main() {
 XOpenDisplay()
 ; return 0; }
 EOF
-if { (eval echo configure:6390: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:6437: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6433,17 +6480,17 @@ then
        PWD_INCDIR=no
        ac_safe=`echo "pwd.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for pwd.h""... $ac_c" 1>&6
-echo "configure:6437: checking for pwd.h" >&5
+echo "configure:6484: checking for pwd.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6442 "configure"
+#line 6489 "configure"
 #include "confdefs.h"
 #include <pwd.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6447: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6494: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*

diff --git a/src/configure.in b/src/configure.in
index dfafbd4..4bb74ca 100644 (file)
--- a/src/configure.in
+++ b/src/configure.in
@@ -631,6 +631,9 @@ AC_CHECK_FUNCS(fp_class fp_class_d class)
 AC_CHECK_FUNCS(sigprocmask waitpid setsid fcvt)
 dnl We use our snprintf.c emulation if either snprintf() or vsnprintf()
 dnl is missing.  Yes, there are machines that have only one.
+dnl We may also decide to use snprintf.c if snprintf() is present but does
+dnl not have working "long long int" support -- see below.
+SNPRINTF=''
 AC_CHECK_FUNC(snprintf,
              AC_DEFINE(HAVE_SNPRINTF),
              SNPRINTF='snprintf.o')
@@ -701,38 +704,37 @@ fi
 AC_SUBST(HPUXMATHLIB)
 
 dnl Check to see if we have a working 64-bit integer type.
-dnl This has to be done after checking for snprintf, because
-dnl if the platform has snprintf then we need to know if snprintf
-dnl works with 64-bit ints.  However, if we are supplying our own
-dnl snprintf then we expect that it will work as long as the basic
-dnl 64-bit math operations work.  NOTE that we will supply our own
-dnl snprintf if either snprintf or vsnprintf is missing.
-
+dnl This breaks down into two steps:
+dnl (1) figure out if the compiler has a 64-bit int type with working
+dnl arithmetic, and if so
+dnl (2) see whether snprintf() can format the type correctly.  (Currently,
+dnl snprintf is the only library routine we really need for int8 support.)
+dnl It's entirely possible to have a compiler that handles a 64-bit type
+dnl when the C library doesn't; this is fairly likely when using gcc on
+dnl an older platform, for example.
+dnl If there is no native snprintf() or it does not handle the 64-bit type,
+dnl we force our own version of snprintf() to be used instead.
+dnl Note this test must be run after our initial check for snprintf/vsnprintf.
+
+HAVE_LONG_INT_64=0
 AC_MSG_CHECKING(whether 'long int' is 64 bits)
-AC_TRY_RUN([#include <stdio.h>
-typedef long int int64;
-#define INT64_FORMAT "%ld"
+AC_TRY_RUN([typedef long int int64;
 
+/* These are globals to discourage the compiler from folding all the
+ * arithmetic tests down to compile-time constants.
+ */
 int64 a = 20000001;
 int64 b = 40000005;
 
 int does_int64_work()
 {
   int64 c,d;
-  char buf[100];
 
   if (sizeof(int64) != 8)
     return 0;                  /* doesn't look like the right size */
 
-  /* we do perfunctory checks on multiply and divide,
-   * and also test snprintf if the platform provides snprintf.
-   */
+  /* Do perfunctory checks to see if 64-bit arithmetic seems to work */
   c = a * b;
-#if defined(HAVE_SNPRINTF) && defined(HAVE_VSNPRINTF)
-  snprintf(buf, 100, INT64_FORMAT, c);
-  if (strcmp(buf, "800000140000005") != 0)
-    return 0;                  /* either multiply or snprintf is busted */
-#endif
   d = (c + b) / b;
   if (d != a+1)
     return 0;
@@ -741,35 +743,32 @@ int does_int64_work()
 main() {
   exit(! does_int64_work());
 }],
-       [AC_DEFINE(HAVE_LONG_INT_64) AC_MSG_RESULT(yes)],
+       [HAVE_LONG_INT_64=1
+        AC_DEFINE(HAVE_LONG_INT_64)
+        AC_MSG_RESULT(yes)],
        AC_MSG_RESULT(no),
        AC_MSG_RESULT(assuming not on target machine))
 
+HAVE_LONG_LONG_INT_64=0
+if [[ $HAVE_LONG_INT_64 -eq 0 ]] ; then
 AC_MSG_CHECKING(whether 'long long int' is 64 bits)
-AC_TRY_RUN([#include <stdio.h>
-typedef long long int int64;
-#define INT64_FORMAT "%lld"
+AC_TRY_RUN([typedef long long int int64;
 
+/* These are globals to discourage the compiler from folding all the
+ * arithmetic tests down to compile-time constants.
+ */
 int64 a = 20000001;
 int64 b = 40000005;
 
 int does_int64_work()
 {
   int64 c,d;
-  char buf[100];
 
   if (sizeof(int64) != 8)
     return 0;                  /* doesn't look like the right size */
 
-  /* we do perfunctory checks on multiply and divide,
-   * and also test snprintf if the platform provides snprintf.
-   */
+  /* Do perfunctory checks to see if 64-bit arithmetic seems to work */
   c = a * b;
-#if defined(HAVE_SNPRINTF) && defined(HAVE_VSNPRINTF)
-  snprintf(buf, 100, INT64_FORMAT, c);
-  if (strcmp(buf, "800000140000005") != 0)
-    return 0;                  /* either multiply or snprintf is busted */
-#endif
   d = (c + b) / b;
   if (d != a+1)
     return 0;
@@ -778,9 +777,49 @@ int does_int64_work()
 main() {
   exit(! does_int64_work());
 }],
-       [AC_DEFINE(HAVE_LONG_LONG_INT_64) AC_MSG_RESULT(yes)],
+       [HAVE_LONG_LONG_INT_64=1
+        AC_DEFINE(HAVE_LONG_LONG_INT_64)
+        AC_MSG_RESULT(yes)],
        AC_MSG_RESULT(no),
        AC_MSG_RESULT(assuming not on target machine))
+fi
+
+dnl If we found "long int" is 64 bits, assume snprintf handles it.
+dnl If we found we need to use "long long int", better check.
+
+if [[ x$SNPRINTF = x -a $HAVE_LONG_LONG_INT_64 -eq 1 ]] ; then
+    AC_MSG_CHECKING(whether snprintf handles 'long long int')
+    AC_TRY_RUN([#include <stdio.h>
+typedef long long int int64;
+#define INT64_FORMAT "%lld"
+
+int64 a = 20000001;
+int64 b = 40000005;
+
+int does_int64_snprintf_work()
+{
+  int64 c;
+  char buf[100];
+
+  if (sizeof(int64) != 8)
+    return 0;                  /* doesn't look like the right size */
+
+  c = a * b;
+  snprintf(buf, 100, INT64_FORMAT, c);
+  if (strcmp(buf, "800000140000005") != 0)
+    return 0;                  /* either multiply or snprintf is busted */
+  return 1;
+}
+main() {
+  exit(! does_int64_snprintf_work());
+}],
+       AC_MSG_RESULT(yes),
+       [SNPRINTF='snprintf.o'
+        AC_MSG_RESULT(no)],
+       [SNPRINTF='snprintf.o'
+        AC_MSG_RESULT(assuming not on target machine)])
+fi
+
 
 dnl Check to see if platform has POSIX signal interface.
 dnl NOTE: if this test fails then POSIX signals definitely don't work.