mikael@sm.luth.se (Mikael Eriksson) (02/27/89)
We are planning to buy a license for eiffel and use it on our SUN-3 computers. Our problem is that we are in a transition from Sun-OS 3.5 to Sun-OS 4.0. Which of these versions does eiffel currently run on? (The best would of course be if it could be run on both versions since we might need to stay a while on 3.5 due to our other compilers. But when they work we would like to transit to 4.0 as fast as possible.) mikael -- Mikael Eriksson (Email: mikael@sm.luth.se) ......... You are in error. 2+2=5 Thank you for your cooperation. The Computer.
bertrand@eiffel.UUCP (Bertrand Meyer) (03/10/89)
From <228@my6.sm.luth.se>, mikael@sm.luth.se (Mikael Eriksson): > We are planning to buy a license for eiffel and > use it on our SUN-3 computers. Our problem is that > we are in a transition from Sun-OS 3.5 to Sun-OS 4.0. > > Which of these versions does eiffel currently run on? > (The best would of course be if it could be run > on both versions since we might need to stay a while > on 3.5 due to our other compilers. But when they > work we would like to transit to 4.0 as fast as possible.) On the Sun-3, Eiffel runs on both 3.x and 4.0 (or 4.0.1). Unfortunately the deliveries are not the same in both cases, because of some inconsistencies in the way signals are handled. (The *source* of the compiler and tools is the same, with the exception of one declaration for an external signal handling routine, but the compiled versions produced by Sun's C compiler are not quite compatible). On other Sun models (Sun-4 and 386i) only 4.0 is supported. The 386i is a recent machine and I don't believe 3.5 was ever available there. For the Sun-4 we ran into only one case in which a user was still running 3.5. Continuing to support 3.5 on the Sun-3 does not raise any significant technical problem, but it is a pain to maintain two versions. Since most Sun sites who have not yet adopted 4.0 seem to intend to do so soon, we are considering making Eiffel 2.2 available on SunOS 4.0 only. If this is felt unreasonable by readers of this newsgroup, I would appreciate hearing the screams now. While I am at it, a similar problem applies to Apollo users. At the moment we support only 9.7. From what we understand the next version, SR-10, is gaining momentum. This is a native implementation of Unix, not one that runs on top of Apollo's own operating system (Aegis). Here the situation is worse because it appears technically difficult for us to provide both versions. I would be glad to hear opinions from Apollo users on what they feel we should support. Thanks in advance for your suggestions. -- Bertrand Meyer bertrand@eiffel.com
heuring@boulder.Colorado.EDU (Vincent Heuring) (03/11/89)
In article <113@eiffel.UUCP> bertrand@eiffel.UUCP (Bertrand Meyer) writes: > Since most Sun sites who have not yet adopted >4.0 seem to intend to do so soon, we are considering making >Eiffel 2.2 available on SunOS 4.0 only. If this is felt >unreasonable by readers of this newsgroup, I would appreciate >hearing the screams now. > Scream, scream. Many of those who have 'upgraded' to 4.0 are unhappy. It is slower, and its compilers are buggy. Lots of us have decided to stick with our present version for the forseeable future -- at least until 4.0 gets stable. ----------------------------------------------------------------- | Vince Heuring Dep't of Electrical & Computer Engineering | | University of Colorado - Boulder heuring@colorado.EDU | -----------------------------------------------------------------