[ci skip] Document RETSIGTYPE

diff --git a/UPGRADING.INTERNALS b/UPGRADING.INTERNALS
index d5e3098641369db6018991103532ad2e28c81f7d..31b51408e480ff49690ea3171f305e8484cfb935 100644 (file)
--- a/UPGRADING.INTERNALS
+++ b/UPGRADING.INTERNALS
@@ -27,6 +27,7 @@ PHP 7.3 INTERNALS UPGRADE NOTES
   x. Class declaration opcodes (DECLARE_INHERITED_CLASS ...)
   y. zend_constant
   z. HAVE_ST_BLKSIZE and HAVE_ST_RDEV
+  aa. RETSIGTYPE
 
 2. Build system changes
   a. Unix build system changes
@@ -170,6 +171,9 @@ PHP 7.3 INTERNALS UPGRADE NOTES
  z. HAVE_ST_BLKSIZE must be replaced with HAVE_STRUCT_STAT_ST_BLKSIZE and
     HAVE_ST_RDEV must be replaced with HAVE_STRUCT_STAT_ST_RDEV.
 
+ aa. RETSIGTYPE has been removed from the generated php_config.h and should be
+    replaced with void.
+
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 2. Build system changes
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