Properly check that pglz is not supported

Author: za-arthur

src/archive.c

@@ -63,9 +63,10 @@ do_archive_push(char *wal_file_path, char *wal_file_name, bool overwrite)
 
 	elog(INFO, "pg_probackup archive-push from %s to %s", absolute_wal_file_path, backup_wal_file_path);
 
-#ifdef HAVE_LIBZ
 	if (compress_alg == PGLZ_COMPRESS)
 		elog(ERROR, "pglz compression is not supported");
+
+#ifdef HAVE_LIBZ
 	if (compress_alg == ZLIB_COMPRESS)
 		is_compress = IsXLogFileName(wal_file_name);
 #endif

src/pg_probackup.c

@@ -410,6 +410,12 @@ main(int argc, char *argv[])
 	if (compress_level == 0)
 		compress_alg = NOT_DEFINED_COMPRESS;
 
+#ifndef HAVE_LIBZ
+	if ((backup_subcmd == BACKUP || backup_subcmd == ARCHIVE_PUSH) &&
+		compress_alg == ZLIB_COMPRESS)
+		elog(ERROR, "This build does not support zlib compression");
+#endif
+
 	/* do actual operation */
 	switch (backup_subcmd)
 	{