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Re: octave configure on cygwin snapshot
Eric Blake <ebb9 <at> byu.net> writes:
> As your testcase shows, the inclusion of <sys/time.h> manages to define
> timezone, but then subsequent includes trigger the macro that changes the
> spelling to _timezone, and your declarations all end up referring to the
> incomplete type struct _timezone, hence the compiler error. So something in
> cygwin's headers needs to change in order to make sure struct timezone is not
> hidden by the macro in <cygwin/time.h>.
At first, I thought the solution might be as simple as having <cygwin/time.h>
declare struct _timezone which is identical in layout to <time.h>'s struct
timezone. But then I realized there is another clash to also fix - if the user
then how do they refer to struct timeb.timezone? Maybe the correct fix is a
cygwin-specific newlib patch to both sys/timeb.h and sys/time.h that moves the
#include <cygwin/time.h> earlier in the file, so that timezone is redefined to
_timezone before any other declaration that tries to use the name timezone.
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