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From: | Benji Wiebe |
Subject: | Re: Port getprogname module to SCO OpenServer |
Date: | Mon, 5 Oct 2020 21:23:28 -0500 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 |
http://osr600doc.sco.com/en/man/html.CP/cc.CP.html#cc_preassertionIs where the predefined constants for the builtin cc are listed. Do we need to support a possible future port of clang to SCO OpenServer when OpenServer is dead?
Or just make it work with the current compilers available? (SCO's cc and GCC)
On 10/3/20 9:48 PM, Bruno Haible wrote:
Tim Rice wrote:Hi Bruno, On Sat, 3 Oct 2020, Bruno Haible wrote:Tim Rice wrote:+# elif defined __SCO_VERSION__ /* SCO OpenServer/UnixWare */While __SCO_VERSION__ covers Openserver 6 and UnixWare 7, what is normally used for 6 and 7 is __USLC__ for the native compiler and __sysv5__ for gcc Ie. # elif defined __USLC__ || defined __sysv5__If the code depends only on the operating system, let's use a #if for the operating system, not for the compilers (__USLC__). Because the day clang gets ported to that operating systems, the condition would not work any more. https://sourceforge.net/p/predef/wiki/OperatingSystems/ says that _SCO_DS can be used to test for SCO OpenServer. It seems that you say that __SCO_VERSION__ works as well. So let's use one of these.As to __SCO_VERSION__ vs __USLC__ for native compiler, I am fine with __SCO_VERSION__ in this case.Good._SCO_DS is only for Openserver 5 (which the proposed patch will not work for) and __SCO_VERSION__ only works for the native compiler on OpenServer 6 and UnixWare 7. Sorry I did not make that clear before. __sysv5__ works for the GCC 7.3.0 on 6 and 7. If clang is ported, chances are extremely high it will also include the __sysv5__ manifest define.OK. And what about __UNIXWARE__ and __OPENSERVER__ that I see being used [1]? On which versions are they defined? As it starts to get confusing, maybe you can clarify things by filling in this table? | OpenServer 5 | OpenServer 6 | UnixWare 7 | | | | | | native | gcc | native | gcc | native | gcc | | | | | | | | ----------------+---------+--------+---------+-------+---------+-------+ _SCO_DS | | | | | | | | | | | | | | __SCO_VERSION__ | | | | | | | | | | | | | | __UNIXWARE__ | | | | | | | | | | | | | | __OPENSERVER__ | | | | | | | | | | | | | | __sysv5__ | | | | | | | ----------------+---------+--------+---------+-------+---------+-------+ Bruno [1] https://opensource.apple.com/source/X11misc/X11misc-10.1/makedepend/makedepend-1.0.1/imakemdep.h.auto.html
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