Issue #22980: Under Linux, C extensions now include bitness in the file name,
to make it easy to test 32-bit and 64-bit builds in the same working tree.
diff --git a/configure b/configure
index 799c6c4..d91a9c7 100755
--- a/configure
+++ b/configure
@@ -14200,7 +14200,15 @@
$as_echo "$ABIFLAGS" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking SOABI" >&5
$as_echo_n "checking SOABI... " >&6; }
-SOABI='cpython-'`echo $VERSION | tr -d .`${ABIFLAGS}
+
+case $ac_sys_system in
+ Linux*|GNU*)
+ BITNESS_SUFFIX=-$(($ac_cv_sizeof_void_p * 8))b;;
+ *)
+ BITNESS_SUFFIX=;;
+esac
+SOABI='cpython-'`echo $VERSION | tr -d .`${ABIFLAGS}${BITNESS_SUFFIX}
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $SOABI" >&5
$as_echo "$SOABI" >&6; }