https://bugs.gentoo.org/943788
https://github.com/bcl/digitemp/commit/fa56b0f78d12f97ac44e0a367d413a9e88611d1c

From fa56b0f78d12f97ac44e0a367d413a9e88611d1c Mon Sep 17 00:00:00 2001
From: Robert Scheck <robert-scheck@users.noreply.github.com>
Date: Thu, 16 Jan 2025 21:24:41 +0100
Subject: [PATCH] Fix conflicting prototype
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src/digitemp.c:171:6: error: conflicting types for ‘free_coupler’; have ‘void(int)’
  171 | void free_coupler( int free_only )
      |      ^~~~~~~~~~~~
In file included from src/digitemp.c:78:
src/digitemp.h:90:6: note: previous declaration of ‘free_coupler’ with type ‘void(void)’
   90 | void free_coupler();
      |      ^~~~~~~~~~~~
---
 src/digitemp.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/digitemp.h b/src/digitemp.h
index 06d50e9..e81a7be 100644
--- a/src/digitemp.h
+++ b/src/digitemp.h
@@ -87,7 +87,7 @@ struct _coupler {
 
 /* Prototypes */
 void usage();
-void free_coupler();
+void free_coupler( int free_only );
 float c2f( float temp );
 int build_tf( char *time_format, char *format, int sensor, 
               float temp_c, int humidity, unsigned char *sn );