From ddd6f3b61f57666bcfc882fd67540de16d3bd3be Mon Sep 17 00:00:00 2001
From: Emil Lerch <emil@lerch.org>
Date: Tue, 6 Jan 2026 19:34:08 -0800
Subject: [PATCH] patch sunriset.c so we can avoid main function

---
 libs/sunriset/sunriset.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libs/sunriset/sunriset.c b/libs/sunriset/sunriset.c
index 16afbdd..34feb78 100644
--- a/libs/sunriset/sunriset.c
+++ b/libs/sunriset/sunriset.c
@@ -128,7 +128,10 @@ double GMST0( double d );
 
 /* A small test program */
 
-main()
+#ifdef SUNRISET_NO_MAIN
+int sunriset_test_main(void) { return 0; }
+#else
+int main(void)
 {
       int year,month,day;
       double lon, lat;
@@ -234,6 +237,7 @@ main()
       return 0;
       }
 }
+#endif
 
 
 /* The "workhorse" function for sun rise/set times */