From 9db4e9e756c436b624b45ca8c32ca1526122ef46 Mon Sep 17 00:00:00 2001
From: guberathome <84842184+guberathome@users.noreply.github.com>
Date: Tue, 21 Jan 2025 00:54:43 +0100
Subject: [PATCH] fix fallback/stdio build (#196)

Provide stub for sdSleepMillis() in pf_io_stdio.c

Makefile: correct comment regarding IO_SOURCE for stdio builds
---
 csrc/stdio/pf_io_stdio.c | 4 ++++
 platforms/unix/Makefile  | 5 +++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/csrc/stdio/pf_io_stdio.c b/csrc/stdio/pf_io_stdio.c
index 7fe6ef0..11856c6 100644
--- a/csrc/stdio/pf_io_stdio.c
+++ b/csrc/stdio/pf_io_stdio.c
@@ -58,3 +58,7 @@ void sdTerminalTerm( void )
 {
 }
 
+cell_t sdSleepMillis(cell_t msec)
+{
+    return PF_ERR_NOT_SUPPORTED;
+}
diff --git a/platforms/unix/Makefile b/platforms/unix/Makefile
index 0e4eacb..f4dfa9d 100644
--- a/platforms/unix/Makefile
+++ b/platforms/unix/Makefile
@@ -29,9 +29,10 @@ ifndef WIDTHOPT
   WIDTHOPT=
 endif
 ifndef IO_SOURCE
+  # for POSIX systems:
   IO_SOURCE = pf_io_posix.c pf_fileio_stdio.c
-  #IO_SOURCE = pf_io_stdio.c
-  #            TODO: add demo what else is needed for this to work
+  # for generic / any system supporting stdio:
+  #   IO_SOURCE = pf_io_stdio.c pf_fileio_stdio.c
 endif
 
 SRCDIR       = ../..