diff --git a/src/aclocal.m4 b/src/aclocal.m4
index 49e1bb120..71cac3f87 100644
--- a/src/aclocal.m4
+++ b/src/aclocal.m4
@@ -801,21 +801,7 @@ int main() {
   int bits;
   FILE *f=fopen("conftestval", "w");
   if (!f) exit(1);
-  if (sizeof(int) >= sizeof(void*)) {
-    unsigned int t = 1;
-    signed int l = 0;
-    int_type="int";
-    for (bits=1; ((t << 1) >> 1) == t; bits++, t <<= 1);
-    l = (~l) << (bits - 3);
-#if 1
-    fprintf(f,"CL_FIXNUM_MIN='%d';",l);
-    fprintf(f,"CL_FIXNUM_MAX='%d';",-(l+1));
-#else
-    l++;
-    fprintf(f,"CL_FIXNUM_MIN='%d';",l);
-    fprintf(f,"CL_FIXNUM_MAX='%d';",-l);
-#endif
-  } else if (sizeof(long) >= sizeof(void*)) {
+  if (sizeof(long) >= sizeof(void*)) {
     unsigned long int t = 1;
     signed long int l = 0;
     int_type="long int";
diff --git a/src/configure b/src/configure
index 84ac57192..7c4f04ca6 100755
--- a/src/configure
+++ b/src/configure
@@ -9226,21 +9226,7 @@ int main() {
   int bits;
   FILE *f=fopen("conftestval", "w");
   if (!f) exit(1);
-  if (sizeof(int) >= sizeof(void*)) {
-    unsigned int t = 1;
-    signed int l = 0;
-    int_type="int";
-    for (bits=1; ((t << 1) >> 1) == t; bits++, t <<= 1);
-    l = (~l) << (bits - 3);
-#if 1
-    fprintf(f,"CL_FIXNUM_MIN='%d';",l);
-    fprintf(f,"CL_FIXNUM_MAX='%d';",-(l+1));
-#else
-    l++;
-    fprintf(f,"CL_FIXNUM_MIN='%d';",l);
-    fprintf(f,"CL_FIXNUM_MAX='%d';",-l);
-#endif
-  } else if (sizeof(long) >= sizeof(void*)) {
+  if (sizeof(long) >= sizeof(void*)) {
     unsigned long int t = 1;
     signed long int l = 0;
     int_type="long int";