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#serial 8
dnl From Jim Meyering
AC_DEFUN([gl_TIMESPEC],
[
dnl Prerequisites of lib/timespec.h.
AC_REQUIRE([AC_HEADER_TIME])
AC_CHECK_HEADERS_ONCE(sys/time.h)
gl_CHECK_TYPE_STRUCT_TIMESPEC
AC_STRUCT_ST_MTIM_NSEC
dnl Persuade glibc <time.h> to declare nanosleep().
AC_REQUIRE([AC_GNU_SOURCE])
AC_CHECK_DECLS(nanosleep, , , [#include <time.h>])
])
dnl Define HAVE_STRUCT_TIMESPEC if `struct timespec' is declared
dnl in time.h or sys/time.h.
AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC],
[
dnl Persuade pedantic Solaris to declare struct timespec.
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_REQUIRE([AC_HEADER_TIME])
AC_CHECK_HEADERS_ONCE(sys/time.h)
AC_CACHE_CHECK([for struct timespec], fu_cv_sys_struct_timespec,
[AC_TRY_COMPILE(
[
# if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
# else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
# endif
],
[static struct timespec x; x.tv_sec = x.tv_nsec;],
fu_cv_sys_struct_timespec=yes,
fu_cv_sys_struct_timespec=no)
])
if test $fu_cv_sys_struct_timespec = yes; then
AC_DEFINE(HAVE_STRUCT_TIMESPEC, 1,
[Define if struct timespec is declared in <time.h>. ])
fi
])
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