build: Annotate droppable functions for musl on next SOVERSION bump These are already provided by the musl libc, and can thus be dropped on the next SOVERSION bump.
diff --git a/configure.ac b/configure.ac
index c759d4e..93e3b36 100644
--- a/configure.ac
+++ b/configure.ac
@@ -319,6 +319,12 @@ need_fpurge=yes
need_funopen=yes
AS_CASE([$host_os],
[*-musl*], [
+ # On musl >= 0.5.0, strlcpy() and strlcat() were already implemented,
+ # so these can then be dropped on the next SOVERSION bump.
+ #need_strl=no
+ # On musl >= 0.9.7, optreset got implemented, so bsd_getopt() can then
+ # be dropped on the next SOVERSION bump.
+ #need_bsd_getopt=no
# On musl >= 1.1.19, fopencookie() got implemented, and because we were
# checking for its presence to decide whether to build funopen(), it got
# included in builds even when previously it had not been included, which