The board build compiles again: pty status and run read no prompt marks where there are no terminals

pty.zig reached into a terminal's stream handler, which is void on esp32p4, so the board build stopped at readStatus and writeRun. Both now know at comptime that such a build has no marks.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/ninep/pty.zig b/src/ninep/pty.zig
index a2a40811..3599b612 100644
--- a/src/ninep/pty.zig
+++ b/src/ninep/pty.zig
@@ -92,7 +92,8 @@ pub fn readStatus(p: *Pardes, req: Req, id: usize, pane: *Pane) Reply {
     // Busy is what a run written now would be told: a command is running
     // or a line is typed at the prompt. Before the shell's first prompt a
     // run waits for it rather than answer busy, so that is not busy.
-    const marks = if (pane.terminal) |state| &state.stream.handler else null;
+    // A build with no terminal panes (the board) has no marks to read.
+    const marks = if (comptime !pardes.panes.Terminal.enabled) null else if (pane.terminal) |state| &state.stream.handler else null;
     const busy = p.hostTtyTaken(id) or (!pane.fs.unmarked and (waitingRun(p, pane) != null or
         (if (marks) |m| m.prompts > 0 and (m.phase != .input or !pardes.panes.Terminal.promptInputEmpty(pane)) else false)));
     const out = p.fs.stage(p.gpa);
@@ -162,6 +163,7 @@ pub fn writeRun(p: *Pardes, req: Req, id: usize, pane: *Pane) Reply {
     if (std.mem.trim(u8, line, " \t").len == 0) return tree.failText(req.tag, E.INVAL, e_bad_line);
     if (line.len == 0) return tree.failText(req.tag, E.INVAL, e_bad_line);
     for (line) |c| if (c < ' ' and c != '\t') return tree.failText(req.tag, E.INVAL, e_bad_line);
+    if (comptime !pardes.panes.Terminal.enabled) return tree.failText(req.tag, E.INVAL, e_bad_line);
     const pf = &pane.fs;
     const state = pane.terminal orelse return tree.failText(req.tag, E.INVAL, e_bad_line);
     const marks = &state.stream.handler;