altos/lisp: Clean up OS integration bits, add defun

Provide an abstraction for the OS interface so that it
can build more cleanly on Linux and AltOS. Add defun macro.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 1 insertions, 13 deletions

diff --git a/src/lisp/ao_lisp_read.c b/src/lisp/ao_lisp_read.c
index bc1eb36b..3a2ef7f1 100644
--- a/src/lisp/ao_lisp_read.c
+++ b/src/lisp/ao_lisp_read.c
@@ -156,19 +156,7 @@ lex_get()
 		c = lex_unget_c;
 		lex_unget_c = 0;
 	} else {
-#if AO_LISP_ALTOS
-		static uint8_t	at_eol;
-
-		if (at_eol) {
-			ao_cmd_readline();
-			at_eol = 0;
-		}
-		c = ao_cmd_lex();
-		if (c == '\n')
-			at_eol = 1;
-#else
-		c = getchar();
-#endif
+		c = ao_lisp_getc();
 	}
 	return c;
 }