dnl checks for header files
AC_CHECK_HEADERS_ONCE(
sys/systeminfo.h
+ sys/sysinfo.h
coff.h pty.h
sys/resource.h
sys/utsname.h pwd.h utmp.h util.h)
[Define to 1 if personality LINUX32 can be set.])
fi
+if test "$ac_cv_header_sys_sysinfo_h" = yes; then
+ AC_MSG_CHECKING([if Linux sysinfo may be used])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
+ [[struct sysinfo si; sysinfo (&si)]])],
+ emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
+ AC_MSG_RESULT($emacs_cv_linux_sysinfo)
+ if test $emacs_cv_linux_sysinfo = yes; then
+ AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
+ [[struct sysinfo si; return si.mem_unit]])],
+ AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
+ [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
+ fi
+fi
+
dnl On Solaris 8 there's a compilation warning for term.h because
dnl it doesn't define `bool'.
AC_CHECK_HEADERS(term.h, , , -)
deps_frag=autodeps.mk
fi
fi
+lwlib_deps_frag=$srcdir/lwlib/$deps_frag
+oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
deps_frag=$srcdir/src/$deps_frag
AC_SUBST(MKDEPDIR)
AC_SUBST(DEPFLAGS)
AC_SUBST_FILE(deps_frag)
-
+AC_SUBST_FILE(lwlib_deps_frag)
+AC_SUBST_FILE(oldxmenu_deps_frag)
lisp_frag=$srcdir/src/lisp.mk
AC_SUBST_FILE(lisp_frag)
AC_SUBST(LIBS_TERMCAP)
AC_SUBST(TERMCAP_OBJ)
+# GNU/Linux-specific timer functions.
+AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
+ ]],
+ [[timerfd_create (CLOCK_REALTIME,
+ TFD_CLOEXEC | TFD_NONBLOCK);
+ timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
+ [emacs_cv_have_timerfd=yes],
+ [emacs_cv_have_timerfd=no])])
+if test "$emacs_cv_have_timerfd" = yes; then
+ AC_DEFINE([HAVE_TIMERFD], 1,
+ [Define to 1 if timerfd functions are supported as in GNU/Linux.])
+fi
# Do we have res_init, for detecting changes in /etc/resolv.conf?
# On Darwin, res_init appears not to be useful: see bug#562 and