File 0890-docgen-Print-edoc-generate-error-reason-on-crash.patch of Package erlang

From 2b503bc964403fb413d0c035a5cfa4fdc6df0dd1 Mon Sep 17 00:00:00 2001
From: Lukas Larsson <lukas@erlang.org>
Date: Thu, 2 Apr 2020 11:24:17 +0200
Subject: [PATCH 08/29] docgen: Print edoc generate error reason on crash

---
 lib/erl_docgen/priv/bin/specs_gen.escript | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/erl_docgen/priv/bin/specs_gen.escript b/lib/erl_docgen/priv/bin/specs_gen.escript
index 96b63aa667..5b75a83a7e 100644
--- a/lib/erl_docgen/priv/bin/specs_gen.escript
+++ b/lib/erl_docgen/priv/bin/specs_gen.escript
@@ -89,8 +89,10 @@ call_edoc(FileSpec, InclFs, Dir) ->
         ok = write_text(Text, File, Dir),
         rename(Dir, File)
     catch
-        _:_ ->
+        E:R ->
+            ST = erlang:get_stacktrace(),
             io:format("EDoc could not process file '~s'\n", [File]),
+            io:format("~p:~p ~p\n", [E,R,ST]),
             clean_up(Dir),
             halt(3)
     end.
-- 
2.16.4