OpenBSD: gettimeofday and sys/time.h errors

[Mike Miller]

Hi, continuing on the OpenBSD theme, I am seeing a couple of compilation
failures with sys/time.h, gettimeofday, and timeval very similar to one
reported recently for cygwin [1] (coincidentally I am also investigating on
behalf of Octave).

In a barebones project using gnulib-tool --with-tests --with-tests-c++
and including the gettimeofday and select modules:

$ cd tests
$ gmake -k test-sys_select test-sys_time test-sys_time-c++ 
  CC       test-sys_select.o
test-sys_select.c:44: error: size of array 'verify_tv_sec_type' is negative
gmake: *** [test-sys_select.o] Error 1
gmake: Target `test-sys_select' not remade because of errors.
  CC       test-sys_time.o
test-sys_time.c:27: error: size of array 'verify_tv_sec_type' is negative
gmake: *** [test-sys_time.o] Error 1
gmake: Target `test-sys_time' not remade because of errors.
  CXX      test-sys_time-c++.o
In file included from ../libgnu/sys/select.h:86,
                 from /usr/include/sys/types.h:221,
                 from ../libgnu/sys/types.h:27,
                 from /usr/include/sys/time.h:38,
                 from ../libgnu/sys/time.h:38,
                 from test-sys_time-c++.cc:22:
../libgnu/sys/time.h:419: error: '::gettimeofday' has not been declared
In file included from /usr/include/sys/types.h:221,
                 from ../libgnu/sys/types.h:27,
                 from /usr/include/sys/time.h:38,
                 from ../libgnu/sys/time.h:38,
                 from test-sys_time-c++.cc:22:
../libgnu/sys/select.h:597: error: invalid conversion from 'int (*)(int, 
fd_set*, fd_set*, fd_set*, timeval*)' to 'int (*)(int, fd_set*, fd_set*, 
fd_set*, gnulib::timeval*)'
test-sys_time-c++.cc:28: error: invalid conversion from 'int 
(*)(gnulib::timeval*, void*)' to 'int (*)(timeval*, void*)'
gmake: *** [test-sys_time-c++.o] Error 1
gmake: Target `test-sys_time-c++' not remade because of errors.

There is a circular inclusion loop between sys/select.h and sys/time.h
in the system headers.

[1] https://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html

-- 
mike