File GNUMakefile-attribute-warning.patch of Package libs3-20200523
--- libs3-20200523/GNUmakefile.orig 2025-10-14 10:15:18.025614436 -0600 +++ libs3-20200523/GNUmakefile 2025-10-14 10:16:00.663836086 -0600 @@ -137,6 +137,7 @@ endif CFLAGS += -Wall -Werror -Wshadow -Wextra -Wno-format-truncation -Wno-stringop-overflow \ + -Werror-attribute-warning \ -Iinc \ $(CURL_CFLAGS) $(LIBXML2_CFLAGS) \ -DLIBS3_VER_MAJOR=\"$(LIBS3_VER_MAJOR)\" \