add a CHANGELOG.md entry for the GTK→GDLIB change

This fix and the GD_LIBS→GDLIB_LIBS fix are both addressing problems that were
introduced in 3fcf096870bffa7d21fceecb56ba26e925073ecb.

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85644ac3255cf79228a1919cc417946d33c8fa77..015e37a563176c74886bb7f51137e0d908ae1902 100644 (file)
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - node_distinct_coloring failure due to out-of-memory now reported correctly
   instead of referring to a failure to open lab_gamut
 - Fix a typo `GD_LIBS` to `GDLIB_LIBS` in `tclpkg/tcldot/Makefile.am` !2022
+- Autotools build system sets libgd variables now instead of incorrectly setting
+  GTK variables
 
 ## [2.47.3] - 2021-06-19