File 3271-Fix-compiler-warning.patch of Package erlang

From 84b3c1c7ad97bfd03d346a601f3af8177027614e Mon Sep 17 00:00:00 2001
From: Dan Gudmundsson <dgud@erlang.org>
Date: Tue, 2 Jun 2020 11:57:28 +0200
Subject: [PATCH 1/5] Fix compiler warning

And enable warning as errors
---
 lib/eunit/src/Makefile      | 3 ++-
 lib/eunit/src/eunit_tty.erl | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/eunit/src/Makefile b/lib/eunit/src/Makefile
index 3510d3cc93..32f75202a0 100644
--- a/lib/eunit/src/Makefile
+++ b/lib/eunit/src/Makefile
@@ -24,7 +24,8 @@ RELSYSDIR = $(RELEASE_PATH)/lib/eunit-$(VSN)
 EBIN = ../ebin
 INCLUDE=../include
 
-ERL_COMPILE_FLAGS += -pa $(EBIN) -pa ../../stdlib/ebin -I$(INCLUDE) +nowarn_shadow_vars +warn_unused_import
+ERL_COMPILE_FLAGS += -pa $(EBIN) -pa ../../stdlib/ebin -I$(INCLUDE) \
+	+nowarn_shadow_vars +warn_unused_import -Werror
 
 PARSE_TRANSFORM = eunit_autoexport.erl
 
diff --git a/lib/eunit/src/eunit_tty.erl b/lib/eunit/src/eunit_tty.erl
index ca6aa3b525..fd5245c971 100644
--- a/lib/eunit/src/eunit_tty.erl
+++ b/lib/eunit/src/eunit_tty.erl
@@ -232,7 +232,7 @@ print_test_error({error, Exception}, Data, #state{print_depth = Depth}) ->
 	_ ->
 	    fwrite("  output:<<\"~ts\">>\n\n", [Output])
     end;
-print_test_error({skipped, Reason}, _, St) ->
+print_test_error({skipped, Reason}, _, _St) ->
     fwrite("*did not run*\n::~ts\n", [format_skipped(Reason)]).
 
 format_skipped({module_not_found, M}) ->
-- 
2.26.2