Am Sonntag, 6. Mai 2007 schrieb Ari Johnson: > On 5/6/07, Dennis Schridde <[EMAIL PROTECTED]> wrote: > > Am Sonntag, 6. Mai 2007 schrieb Dennis Schridde: > > > Am Sonntag, 6. Mai 2007 schrieb Per Inge Mathisen: > > > > [EMAIL PROTECTED] warzone]$ svn log -r 864 > > > > --------------------------------------------------------------------- > > > >--- r864 | devurandom | 2007-03-10 20:43:02 +0100 (Sat, 10 Mar 2007) | > > > > 5 lines > > > > > > > > - New macro: WZ_OS_POSIX (if _XOPEN_SOURCE >= 500) > > > > - Added a bit more safety to WZ_DECL_UNUSED (not sure since which GCC > > > > version this exists, so choose >=3.2) > > > > - Encapsulate GLibC extensions and use rest of errorHandler for all > > > > POSIX systems (thus renamed to posixErrorHandler) > > > > - A little bit more verbosity in the gdmp > > > > > > > > This change made it stop working. The culprit is the check for > > > > _XOPEN_SOURCE, which is AFAICT supposed to be set by the user (if you > > > > want posix-y code), not something the user can read to figure out the > > > > system. > > > > > > You are right: "An XSI-conforming application should ensure that the > > > feature test macro _XOPEN_SOURCE is defined with the value 600 before > > > inclusion of any header." > > > > > > Thus we may want to define _XOPEN_SOURCE=600 in case we need the XSI > > > extension (which I think I used for the exceptionhandler) or just > > > define _POSIX_C_SOURCE=200112L in case we don't. > > > Additionaly we could check for _XOPEN_VERSION=600 (or > > > _POSIX_VERSION=200112L) or find out how to make autotools find out > > > about this. > > > > r1233 tries to do this partly. A slightly better fix might work like > > this: > > > > #ifdef WZ_OS_UNIX > > # define _XOPEN_SOURCE 500 > > # include <unistd.h> > > [...] > > // Where required: > > # if _XOPEN_VERSION >= 500 > > [...] > > # endif > > [...] > > #endif > > MacOS X compiling is now broken. SIGPOLL is undeclared in > exceptionhandler.c. SIGPOLL only gets defined on MacOS X if > _POSIX_C_SOURCE is defined. Nice. As it seems MacOSX breaks the POSIX specs:
"Since this volume of IEEE Std 1003.1-2001 is aligned with the ISO C standard, and since all functionality enabled by _POSIX_C_SOURCE set equal to 200112L is enabled by _XOPEN_SOURCE set equal to 600, there should be no need to define _POSIX_C_SOURCE if _XOPEN_SOURCE is so defined. Therefore, if _XOPEN_SOURCE is set equal to 600 and _POSIX_C_SOURCE is set equal to 200112L, the behavior is the same as if only _XOPEN_SOURCE is defined and set equal to 600. However, should _POSIX_C_SOURCE be set to a value greater than 200112L, the behavior is unspecified."
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