-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 in_addr_t
-dnl --------------------------------------------------
-AC_MSG_CHECKING(for in_addr_t in netinet/in.h)
-AC_EGREP_HEADER(in_addr_t, netinet/in.h,
- [ AC_DEFINE([HAVE_IN_ADDR_T], [1], [Define to 1 if in_addr_t is available.]) AC_MSG_RESULT(yes) ],
- AC_MSG_RESULT(no))
-
-dnl --------------------------------------------------
-dnl * test for Linux sendfile(2)
-dnl --------------------------------------------------
-AC_MSG_CHECKING(for sendfile in sys/sendfile.h)
-AC_EGREP_HEADER(sendfile, sys/sendfile.h,
- [ AC_DEFINE([HAVE_LINUX_SENDFILE], [1], [Define to 1 if you have a Linux sendfile(2) implementation.]) AC_MSG_RESULT(yes) ],
- AC_MSG_RESULT(no))
-
-dnl --------------------------------------------------
-dnl * test for BSD sendfile(2)
-dnl --------------------------------------------------
-AC_MSG_CHECKING(for sendfile in sys/socket.h)
-AC_EGREP_HEADER(sendfile, sys/socket.h,
- [ AC_DEFINE([HAVE_BSD_SENDFILE], [1], [Define to 1 if you have a BSDish sendfile(2) implementation.]) AC_MSG_RESULT(yes) ],
- AC_MSG_RESULT(no))
-