Fix build with PHP 7.3+.
https://bugs.php.net/bug.php?id=77045
http://git.php.net/?p=pecl/mail/mailparse.git;a=commitdiff;h=13c2c425e519b22660a03d566c35e76b3d4751dc;hp=720ed5b77591922596564c414a655f3c7fcd6200
--- mailparse.c.orig
+++ mailparse.c
@@ -984,12 +984,21 @@ PHP_FUNCTION(mailparse_stream_encode)
 	buf = emalloc(bufsize);
 	RETVAL_TRUE;
 
+#if PHP_VERSION_ID >= 70300
+	conv = mbfl_convert_filter_new(mbfl_no2encoding(mbfl_no_encoding_8bit),
+			mbfl_no2encoding(enc),
+			mailparse_stream_output,
+			mailparse_stream_flush,
+			deststream
+			);
+#else
 	conv = mbfl_convert_filter_new(mbfl_no_encoding_8bit,
 			enc,
 			mailparse_stream_output,
 			mailparse_stream_flush,
 			deststream
 			);
+#endif
 
 	if (enc == mbfl_no_encoding_qprint) {
 		/* If the qp encoded section is going to be digitally signed,
@@ -1165,9 +1174,13 @@ PHP_FUNCTION(mailparse_msg_get_structure)
 
 	mailparse_fetch_mimepart_resource(part, arg);
 
+#if PHP_VERSION_ID >= 70300
+	array_init(return_value);
+#else
 	if (array_init(return_value) == FAILURE)	{
 		RETURN_FALSE;
 	}
+#endif
 	php_mimepart_enum_parts(part, &get_structure_callback, return_value);
 }
 /* }}} */
--- php_mailparse_mime.c.orig
+++ php_mailparse_mime.c
@@ -906,12 +906,21 @@ PHP_MAILPARSE_API void php_mimepart_decoder_prepare(php_mimepart *part, int do_d
 		if (from == mbfl_no_encoding_8bit || from == mbfl_no_encoding_7bit) {
 			part->extract_filter = NULL;
 		} else {
+#if PHP_VERSION_ID >= 70300
+			part->extract_filter = mbfl_convert_filter_new(
+					mbfl_no2encoding(from), mbfl_no2encoding(mbfl_no_encoding_8bit),
+					filter_into_work_buffer,
+					NULL,
+					part
+					);
+#else
 			part->extract_filter = mbfl_convert_filter_new(
 					from, mbfl_no_encoding_8bit,
 					filter_into_work_buffer,
 					NULL,
 					part
 					);
+#endif
 		}
 	}