dnl ** check for specific header (.h) files that we are interested in
AC_CHECK_HEADERS(Files.h arpa/inet.h assert.h console.h ctype.h dirent.h errno.h fcntl.h float.h ftw.h grp.h ieee754.h inttypes.h limits.h malloc.h memory.h nlist.h pascal.h pwd.h sgtty.h siginfo.h signal.h stat.h stdint.h stdlib.h stddef.h stdarg.h string.h sys/fault.h sys/file.h sys/ioctl.h sys/limits.h sys/mman.h sys/param.h sys/procfs.h sys/resource.h sys/signal.h sys/socket.h netdb.h netinet/in.h netinet/tcp.h sys/stat.h sys/syscall.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/types.h sys/un.h sys/utsname.h sys/vadvise.h sys/wait.h termio.h termios.h time.h types.h unistd.h utime.h values.h vfork.h bfd.h winsock.h pthread.h sys/uio.h)
+AC_CHECK_HEADER(unistd.h,AC_CHECK_FUNC(lchown))
AC_CHECK_HEADER(readline/readline.h, HaveReadlineReadlineH=YES, HaveReadlineReadlineH=NO)
AC_CHECK_HEADER(readline/history.h, HaveReadlineHistoryH=YES, HaveReadlineHistoryH=NO)
FPTOOLS_CHECK_LIB_NOWARN(m, atan)
+dnl ---------- usleep ----------
+dnl --- stolen from guile configure ---
+dnl --- FIXME: /usr/include/unistd.h can't be right?
+
+### On some systems usleep has no return value. If it does have one,
+### we'd like to return it; otherwise, we'll fake it.
+AC_CACHE_CHECK([return type of usleep], cv_func_usleep_return_type,
+ [AC_EGREP_HEADER(changequote(<, >)<void[ ]+usleep>changequote([, ]),
+ /usr/include/unistd.h,
+ [cv_func_usleep_return_type=void],
+ [cv_func_usleep_return_type=int])])
+case "$cv_func_usleep_return_type" in
+ "void" )
+ AC_DEFINE(USLEEP_RETURNS_VOID, 1,
+ [Define if the system headers declare usleep to return void.])
+ ;;
+esac
+
dnl --------------------------------------------------
dnl * test for GTK+
dnl --------------------------------------------------
AC_SUBST(LdCmd)
FPTOOLS_LD_X
+AC_MSG_CHECKING([for SIGPOLL])
+AC_EGREP_CPP(we_have_sigpoll,
+[#include <signal.h>
+#ifdef SIGPOLL
+we_have_sigpoll
+#endif
+], AC_DEFINE(HAVE_SIGPOLL) haveSIGPOLL=yes, haveSIGPOLL=no)
+AC_MSG_RESULT([$haveSIGPOLL])
AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )