I ran into a problem with gnulib on Solaris 8 with Sun Studio 11,
which resulted from the combination of the double-include patch of
<http://lists.gnu.org/archive/html/bug-gnulib/2007-05/msg00186.html>
and the recent #include_next patch of
<http://lists.gnu.org/archive/html/bug-gnulib/2007-06/msg00157.html>.
The problem is that Solaris 8 <time.h> eventually includes itself
recursively. But the recursive inclusion resolves to gnulib time.h.
Gnulib assumes that #include "/usr/include/time.h" will define
struct timespec, but in this inner context that's not true, since
/usr/include/time.h does nothing if it is already in the process of
being included.
I installed the following patch, which fixes the problem for Solaris
8. I don't have easy access to mingw, but if this idea also works on
mingw then perhaps we should use a similar solution for the other .h
files, as it is a bit simpler.
2007-06-23 Paul Eggert <[EMAIL PROTECTED]>
* lib/time_.h: Port to Solaris 8 with Sun Studio 11, using a
method that I hope also handles the double-include problem noted
by Bruno Haible in
<http://lists.gnu.org/archive/html/bug-gnulib/2007-05/msg00186.html>.
This diff is computed with 'diff -w' to avoid changes due only to
space-changes.
*** time_.h.~1.7.~ Wed Jun 20 10:00:43 2007
--- time_.h.~1.8~ Sat Jun 23 12:53:19 2007
***************
*** 18,39 ****
/* Don't get in the way of glibc when it includes time.h merely to
declare a few standard symbols, rather than to declare all the
! symbols. */
! #if defined __need_time_t || defined __need_clock_t || defined __need_timespec
# @INCLUDE_NEXT@ @NEXT_TIME_H@
#else
- /* Normal invocation convention. */
! # if ! defined _GL_TIME_H
- /* The include_next requires a split double-inclusion guard. */
# @INCLUDE_NEXT@ @NEXT_TIME_H@
- # if ! defined _GL_TIME_H
- # define _GL_TIME_H
-
# ifdef __cplusplus
extern "C" {
# endif
--- 18,38 ----
/* Don't get in the way of glibc when it includes time.h merely to
declare a few standard symbols, rather than to declare all the
! symbols. Also, Solaris 8 <time.h> eventually includes itself
! recursively; if that is happening, just include the system <time.h>
! without adding our own declarations. */
! #if (defined __need_time_t || defined __need_clock_t \
! || defined __need_timespec \
! || defined _GL_TIME_H)
# @INCLUDE_NEXT@ @NEXT_TIME_H@
#else
! # define _GL_TIME_H
# @INCLUDE_NEXT@ @NEXT_TIME_H@
# ifdef __cplusplus
extern "C" {
# endif
*************** time_t timegm (struct tm *__tm);
*** 112,117 ****
}
# endif
- # endif /* _GL_TIME_H */
- # endif /* _GL_TIME_H */
#endif
--- 111,114 ----
