* configure: Added check to detect POSIX sleep function.

* eval.c (eval_init): Register new open_tail function as intrinsic.

* match.c (complex_snarf, complex_stream): Update calls to
make_stdio_stream and make_pipe_stream to take fewer arguments.
(match_files): Support a stream object as a data source specification
in place of a string.

* parser.l (parse_reset): Update call to make_stdio_stream to take
fewer arguments.

* stream.c: Inclusion of <unistd.h> made properly conditional.
(struct stdio_handle): pid member defined as pid_t only if we have fork
functionality, otherwise defined as int.
(tail_get_line, tail_get_char, tail_get_byte): New static functions.
(tail_ops): New static structure.
(make_stdio_stream_common): New static structure.
(make_stdio_stream, make_pipe_stream): These functions lose the input
and output parameters, which ended up never used. Reimplemented
in terms of new common function.
(make_tail_stream): New function.
(make_pipevp_stream): Reimplemented in terms of new common function.
(open_file, open_command): Simplified by removal of useless local
variables and their computation, which used to be extra arguments to
make_stdio_stream and make_pipe_stream.
(open_tail): New function.
(stream_init): Calls to make_stdio_stream updated.

* stream.h (make_stdio_stream, make_pipe_stream): Declarations updated.
(make_tail_stream, open_tail): Declared.

* txr.c (txr_main): Calls to make_stdio_stream updated.

1 files changed, 2 insertions, 2 deletions

diff --git a/txr.c b/txr.c
index 2edfb80d..5f423b03 100644
--- a/txr.c
+++ b/txr.c
@@ -389,7 +389,7 @@ int txr_main(int argc, char **argv)
       FILE *in = w_fopen(c_str(spec_file_str), L"r");
       if (in == 0)
         uw_throwf(file_error_s, lit("unable to open ~a"), spec_file_str, nao);
-      yyin_stream = make_stdio_stream(in, spec_file_str, t, nil);
+      yyin_stream = make_stdio_stream(in, spec_file_str);
     } else {
       spec_file = L"stdin";
     }
@@ -404,7 +404,7 @@ int txr_main(int argc, char **argv)
       val name = string_utf8(*argv);
       if (in == 0)
         uw_throwf(file_error_s, lit("unable to open ~a"), name, nao);
-      yyin_stream = make_stdio_stream(in, name, t, nil);
+      yyin_stream = make_stdio_stream(in, name);
       spec_file = utf8_dup_from(*argv);
     } else {
       spec_file = L"stdin";