Backwards-incompatible interface change

[dmacks]

The fix for CVE-2015-5203 includes a change to jas_stream.h:

 typedef struct {
 [...]
 	/* The allocated size of the buffer for holding file data. */
-	int bufsize_;
+	size_t bufsize_;
 [...]
 } jas_stream_memobj_t;

That changes the size of a public struct, which breaks binary compatibility and therefore causes crashes. See for example: https://bugzilla.redhat.com/show_bug.cgi?id=1254242

In configure.ac, the AC_JAS_LT_* values are documented to be used for this situation (actually for every new release, but it's especially important for ABI breaks). I think changing a public interface signature is equivalent to removing an interface (you removed the old one and added a new one that is "different" but happens to have the same function-name).

[mdadams]

Based on my limited understanding of the various AC_JAS_LT* values (which I believe were contributed a long time ago by someone who knows much more about shared library versioning than I do), I would agree with your assessment that these values need updating. So, I have bumped AC_JAS_LT_CURRENT on the master branch and tagged a new release. The new version is tagged as version-1.900.24. Let me know if this does not resolve the problems on your side.