File 0185-Fix-proc_lib-documentation-of-spawn-1-and-similar-fu.patch of Package erlang

From 537a5086bf7e5a557de537f9b46da9ca26c8a180 Mon Sep 17 00:00:00 2001
From: Paul Guyot <pguyot@kallisys.net>
Date: Mon, 10 Nov 2025 23:51:05 +0100
Subject: [PATCH] Fix `proc_lib` documentation of spawn/1 and similar functions

The documentation mentioned an equivalence of `erlang:apply(Fun)` but
this should read `erlang:apply(Fun, [])`.

This is not a strict equivalence as spawn/1 and similar functions do not
exactly set `initial_call/1` as if spawn/3 and similar functions would have
been called with `erlang, apply, [Fun, []]`, but the actual output of
`initial_call/1` is not entirely specified.

Signed-off-by: Paul Guyot <pguyot@kallisys.net>
---
 lib/stdlib/src/proc_lib.erl | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/stdlib/src/proc_lib.erl b/lib/stdlib/src/proc_lib.erl
index 041db1ee1d..1c7faf8f9e 100644
--- a/lib/stdlib/src/proc_lib.erl
+++ b/lib/stdlib/src/proc_lib.erl
@@ -144,7 +144,7 @@ of `Class`, `Reason` and `Stacktrace`.
 
 %%-----------------------------------------------------------------------------
 
--doc(#{equiv => spawn(erlang, apply, [Fun])}).
+-doc(#{equiv => spawn(erlang, apply, [Fun, []])}).
 -spec spawn(Fun) -> pid() when
       Fun :: function().
 
@@ -164,7 +164,7 @@ spawn(M,F,A) when is_atom(M), is_atom(F), is_list(A) ->
     Ancestors = get_ancestors(),
     erlang:spawn(?MODULE, init_p, [Parent,Ancestors,M,F,A]).
 
--doc(#{equiv => spawn_link(erlang, apply, [Fun])}).
+-doc(#{equiv => spawn_link(erlang, apply, [Fun, []])}).
 -spec spawn_link(Fun) -> pid() when
       Fun :: function().
 
@@ -184,7 +184,7 @@ spawn_link(M,F,A) when is_atom(M), is_atom(F), is_list(A) ->
     Ancestors = get_ancestors(),
     erlang:spawn_link(?MODULE, init_p, [Parent,Ancestors,M,F,A]).
 
--doc(#{equiv => spawn(Node, apply, erlang, [Fun])}).
+-doc(#{equiv => spawn(Node, erlang, apply, [Fun, []])}).
 -spec spawn(Node, Fun) -> pid() when
       Node :: node(),
       Fun :: function().
@@ -209,7 +209,7 @@ spawn(Node, M, F, A) when is_atom(M), is_atom(F), is_list(A) ->
     Ancestors = get_ancestors(),
     erlang:spawn(Node, ?MODULE, init_p, [Parent,Ancestors,M,F,A]).
 
--doc(#{equiv => spawn_link(Node, erlang, apply, [Fun])}).
+-doc(#{equiv => spawn_link(Node, erlang, apply, [Fun, []])}).
 -spec spawn_link(Node, Fun) -> pid() when
       Node :: node(),
       Fun :: function().
@@ -235,7 +235,7 @@ spawn_link(Node, M, F, A) when is_atom(M), is_atom(F), is_list(A) ->
     Ancestors = get_ancestors(),
     erlang:spawn_link(Node, ?MODULE, init_p, [Parent,Ancestors,M,F,A]).
 
--doc(#{equiv => spawn_opt(erlang, apply, [Fun], SpawnOpts)}).
+-doc(#{equiv => spawn_opt(erlang, apply, [Fun, []], SpawnOpts)}).
 -spec spawn_opt(Fun, SpawnOpts) -> pid() | {pid(), reference()} when
       Fun :: function(),
       SpawnOpts :: [erlang:spawn_opt_option()].
@@ -245,7 +245,7 @@ spawn_opt(F, Opts) when is_function(F) ->
     Ancestors = get_ancestors(),
     erlang:spawn_opt(?MODULE, init_p, [Parent,Ancestors,F],Opts).
 
--doc(#{equiv => spawn_opt(Node, erlang, apply, [Fun], SpawnOpts)}).
+-doc(#{equiv => spawn_opt(Node, erlang, apply, [Fun, []], SpawnOpts)}).
 -spec spawn_opt(Node, Fun, SpawnOpts) -> pid() | {pid(), reference()} when
       Node :: node(),
       Fun :: function(),
-- 
2.51.0