mb> Although I love configure, I don't love adding new configure mb> tests. So I asked myself if this could be done only using cpp mb> (I also love cpp!). And I think so. It can. I suggested something nearly identical in my first response to Edwin's patch. Not tested though. mb> This only requires, for complete safety, that the nas headers mb> are included last. ... and that nobody who know how to use the standard *_ENDIAN macros ever does so in this file. But audio is a field where people do check endianess. I am not able to assess the likelihood of that so I went with slightly safer code that will increase its advantage as NAS >= 1.4 becomes prevalent. If you judge that that risk is very low, you can munge the *_ENDIAN macros freely. But such a mistake cannot possibly be caught by the compiler. My code can't catch the mistake either for NAS <= 1.2p5, but code using *_ENDIAN will work as expected for NAS >= 1.4. I agree that your code is simpler, and should work. If you say you want it that way, I'll write it and test it (I can test XEmacs 21.1 and 21.2, NAS 1.2p5 and 1.4 without too much trouble), then submit patch(es). -- University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Institute of Policy and Planning Sciences Tel/fax: +81 (298) 53-5091 _________________ _________________ _________________ _________________ What are those straight lines for? "XEmacs rules."