https://git.ruby-lang.org/ruby.git/commit/?id=bc7f59957f

From bc7f59957f0c8b4378b8fe29deeb9f641e82db20 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Mon, 23 May 2022 22:32:50 +0900
Subject: Make internal function `rb_main` static

---
 main.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/main.c b/main.c
index 03dd5a4443..5cffa24cc8 100644
--- a/main.c
+++ b/main.c
@@ -30,7 +30,7 @@ https://github.com/ruby/ruby/blob/trunk/main.c#L30
 # undef RUBY_DEBUG_ENV
 #endif
 
-int
+static int
 rb_main(int argc, char **argv)
 {
 #ifdef RUBY_DEBUG_ENV
@@ -48,11 +48,13 @@ rb_main(int argc, char **argv) https://github.com/ruby/ruby/blob/trunk/main.c#L48
     }
 }
 
-int main(int argc, char **argv) {
+int
+main(int argc, char **argv)
+{
 #if defined(__wasm__) && !defined(__EMSCRIPTEN__)
-  int rb_wasm_rt_start(int (main)(int argc, char **argv), int argc, char **argv);
-  return rb_wasm_rt_start(rb_main, argc, argv);
+    int rb_wasm_rt_start(int (main)(int argc, char **argv), int argc, char **argv);
+    return rb_wasm_rt_start(rb_main, argc, argv);
 #else
-  return rb_main(argc, argv);
+    return rb_main(argc, argv);
 #endif
 }
-- 
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