Removed all instances of RETSIGTYPE from the source code: signal
handlers "return void", according to ANSI C.
Removed the new Py_RETURN_FROM_SIGNAL_HANDLER macro.
Left RETSIGTYPE in the config stuff, because it's not clear to
me that others aren't relying on it (e.g., extension modules).
diff --git a/README b/README
index 67f3d99..a3ee0f8 100644
--- a/README
+++ b/README
@@ -652,9 +652,8 @@
config.h.in to config.h and edit the latter to reflect the actual
configuration of your system. Most symbols must simply be defined as
1 only if the corresponding feature is present and can be left alone
-otherwise; however RETSIGTYPE must always be defined, either as int or
-as void, and the *_t type symbols must be defined as some variant of
-int if they need to be defined at all.
+otherwise; however the *_t type symbols must be defined as some variant
+of int if they need to be defined at all.