Adapted the code to PG 13.

Author: Antonin Houska

src/Makefile

@@ -1,7 +1,7 @@
 all: walbouncer
 
 # Check for PostgrSQL 9.5 through 11
-ifeq ($(shell pg_config --version | grep -E "PostgreSQL 9.[56]|10|11"),)
+ifeq ($(shell pg_config --version | grep -E "PostgreSQL 9.[56]|10|11|12|13"),)
     $(error PostgreSQL version 9.5 through 11 required, pg_config provides $(shell pg_config --version))
 endif
 

src/include/wbpgtypes.h

@@ -67,7 +67,7 @@ typedef struct BkpBlock
  * Each page of XLOG file has a header like this:
  */
 #define XLOG_PAGE_MAGIC_MIN 0xD087	/* in WB case it's OK to use a range of versions as we're only interested in fixing the RelFileNode location */
-#define XLOG_PAGE_MAGIC_MAX 0xD098
+#define XLOG_PAGE_MAGIC_MAX 0xD106
 
 typedef struct XLogPageHeaderData
 {