Temporary debug commit: include gcc version in configure output. If this doesn't help with reproducing test_float failures then I'll create a separate branch to work on this issue.
diff --git a/configure b/configure
index d7cffff..99d9351 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in Revision: 80702 .
+# From configure.in Revision: 82141 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.65 for python 3.1.
#
@@ -1923,11 +1923,11 @@
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
$ac_includes_default
+ enum { N = $2 / 2 - 1 };
int
main ()
{
-static int test_array [1 - 2 * !(enum { N = $2 / 2 - 1 };
- 0 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1))];
+static int test_array [1 - 2 * !(0 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1))];
test_array [0] = 0
;
@@ -1938,11 +1938,11 @@
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
$ac_includes_default
+ enum { N = $2 / 2 - 1 };
int
main ()
{
-static int test_array [1 - 2 * !(enum { N = $2 / 2 - 1 };
- ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1)
+static int test_array [1 - 2 * !(($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1)
< ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 2))];
test_array [0] = 0
@@ -4126,6 +4126,15 @@
" >&2;}
fi
+# If using GCC, give result of 'gcc -v' in configure output.
+if test "$GCC" = yes; then
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking gcc version" >&5
+$as_echo_n "checking gcc version... " >&6; }
+gcc_version=`$CC -v`
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_version" >&5
+$as_echo "$gcc_version" >&6; }
+fi
+
# checks for UNIX variants that set C preprocessor variables