From d070d39c4d88ae27270fb3b166421662554c4eae Mon Sep 17 00:00:00 2001
From: Sven Geuer <68420948@users.noreply.github.com>
Date: Sat, 6 Dec 2025 20:23:36 +0100
Subject: [PATCH] Make sure one of BUCKETS_* and one of CHECHKSUM_?B are always
 defined

To make tlsh a ready-to-use static or shared library tlsh.h must make
sure to define one of the BUCKETS_* and CHECHKSUM_?B variables in case
none is defined yet.

This PR ensures the default settings as per CMakeLists.txt.
This PR fixes https://github.com/trendmicro/tlsh/issues/114.
---
 include/tlsh.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/tlsh.h b/include/tlsh.h
index 3d7e363..e1b7d4a 100644
--- a/include/tlsh.h
+++ b/include/tlsh.h
@@ -83,6 +83,14 @@ class TlshImpl;
 
 // Define TLSH_STRING_LEN_REQ, which is the string length of "T1" + the hex value of the Tlsh hash.  
 // BUCKETS_256 & CHECKSUM_3B are compiler switches defined in CMakeLists.txt
+// Make sure BUCKETS_* and CHECHKSUM_?B are always defined, to make tlsh.h and
+// the (static or shared) library self-contained.
+#if !(defined BUCKETS_48 || defined BUCKETS_128 || defined BUCKETS_256)
+  #define BUCKETS_128
+#endif
+#if !(defined CHECKSUM_0B || defined CHECKSUM_1B || defined CHECKSUM_3B)
+  #define CHECKSUM_1B
+#endif
 #if defined BUCKETS_256
   #define TLSH_STRING_LEN_REQ 136
   // changed the minimum data length to 256 for version 3.3