Merge branch 'dev' into clean

diff --cc .github/workflows/dev-long-tests.yml
Simple merge

diff --cc tests/Makefile
index f4318ebfb6ff3388c7c8763b6d7bf259a6d567d8,5d19904d9b49bc897476fbff68e309113cafb8ea..afea6475afb36ef0754ce847ab6573a135cbd08f
--- 1/tests/Makefile
--- 2/tests/Makefile
+++ b/tests/Makefile
@@@ -185,9 -179,12 +185,14 @@@ zstreamtest_asan : CFLAGS += -fsanitize
  zstreamtest_asan : $(ZSTREAMFILES)
        $(LINK.c) $(MULTITHREAD) $^ -o $@$(EXT)
  
 +CLEAN += zstreamtest_tsan
  zstreamtest_tsan : CFLAGS += -fsanitize=thread
  zstreamtest_tsan : $(ZSTREAMFILES)
+       $(LINK.c) $(MULTITHREAD) $^ -o $@$(EXT)
+ 
++CLEAN += zstreamtest_ubsan
+ zstreamtest_ubsan : CFLAGS += -fsanitize=undefined
+ zstreamtest_ubsan : $(ZSTREAMFILES)
        $(LINK.c) $(MULTITHREAD) $^ -o $@$(EXT)
  
  # note : broken : requires symbols unavailable from dynamic library