[3.8] bpo-39794: Add --without-decimal-contextvar (GH-18702)
(cherry picked from commit 815280eb160af637e1347213659f9236adf78f80)
diff --git a/configure.ac b/configure.ac
index e57ef7c..d8de9d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3004,6 +3004,21 @@
AC_MSG_RESULT($with_system_libmpdec)
+# Check whether _decimal should use a coroutine-local or thread-local context
+AC_MSG_CHECKING(for --with-decimal-contextvar)
+AC_ARG_WITH(decimal_contextvar,
+ AS_HELP_STRING([--with-decimal-contextvar], [build _decimal module using a coroutine-local rather than a thread-local context (default is yes)]),
+ [],
+ [with_decimal_contextvar="yes"])
+
+if test "$with_decimal_contextvar" != "no"
+then
+ AC_DEFINE(WITH_DECIMAL_CONTEXTVAR, 1,
+ [Define if you want build the _decimal module using a coroutine-local rather than a thread-local context])
+fi
+
+AC_MSG_RESULT($with_decimal_contextvar)
+
# Check for support for loadable sqlite extensions
AC_MSG_CHECKING(for --enable-loadable-sqlite-extensions)
AC_ARG_ENABLE(loadable-sqlite-extensions,