Author: Sergei Golovan
Description: Patch fixes FTBFS when using pbuilder.

--- a/make/ex_doc_wrapper.in
+++ b/make/ex_doc_wrapper.in
@@ -35,11 +35,14 @@
 
 ## Running the command where we redirect stderr to fd 1 and stdout to fd 3.
 ## We then use tee on the stderr (which is now fd 1) to print that to fd 4
-OUTPUT="$( { escript@EXEEXT@ "${EX_DOC}" "${ARGS[@]}"; } 2>&1 1>&3 | tee /dev/fd/4 )"
+export ERL_LIBS=/usr/lib/elixir/lib
+OUTPUT="$( { "${EX_DOC}" "${ARGS[@]}"; } 2>&1 1>&3 )"
 
 ## Close fd 3 and 4
 exec 3>&- 4>&-
 
+echo "${OUTPUT}"
+
 ## If EX_DOC_WARNINGS_AS_ERRORS is not explicitly turned on
 ## and any .app file is missing, we turn off warnings as errors
 if [ "${EX_DOC_WARNINGS_AS_ERRORS}" != "true" ]; then
--- a/make/ex_doc.exs
+++ b/make/ex_doc.exs
@@ -185,6 +185,7 @@
     |> Enum.uniq(),
   extras: extras,
   skip_undefined_reference_warnings_on: ["notes.md"],
+  skip_code_autolink_to: ["t:fun/0"],
   groups_for_docs:
     (Access.get(local_config, :groups_for_docs, []) ++ groups_for_docs) |> Enum.uniq(),
   deps:
--- a/lib/kernel/doc/docs.exs
+++ b/lib/kernel/doc/docs.exs
@@ -39,7 +39,7 @@
       :trace
     ]
   ],
-  skip_code_autolink_to: ["t:file_descriptor/0"],
+  skip_code_autolink_to: ["t:file_descriptor/0","t:fun/0"],
   ## The order of these items determine
   ## how they are listed in the docs
   extras: [
--- a/lib/tools/doc/docs.exs
+++ b/lib/tools/doc/docs.exs
@@ -11,6 +11,7 @@
     "references/erlang.el.md"
   ],
   skip_code_autolink_to: [
+    "t:fun/0",
     "fprof:apply_start_stop/4",
     "prim_file:drv_command/4",
     "prim_file:drv_command/2",
--- a/lib/xmerl/doc/docs.exs
+++ b/lib/xmerl/doc/docs.exs
@@ -1,5 +1,5 @@
 [
-  skip_code_autolink_to: ["t:xmerl_scanner/0", "t:xsd_state/0"],
+  skip_code_autolink_to: ["t:xmerl_scanner/0", "t:xsd_state/0", "t:fun/0"],
 
   ## The order of these items determine
   ## how they are listed in the docs
--- a/lib/diameter/doc/docs.exs
+++ b/lib/diameter/doc/docs.exs
@@ -9,5 +9,5 @@
     "references/diameterc_cmd.md",
     "references/diameter_dict.md"
   ],
-  skip_code_autolink_to: ["diameter_traffic:request/1"]
+  skip_code_autolink_to: ["diameter_traffic:request/1","t:fun/0"]
 ]
--- a/erts/doc/docs.exs
+++ b/erts/doc/docs.exs
@@ -106,6 +106,7 @@
       "references/werl_cmd.md"
     ] ++ Path.wildcard("../emulator/internal_doc/*.md"),
   skip_code_autolink_to: [
+    "t:fun/0",
     "dist_util:net_ticker_spawn_options/0",
     "dist_util:handshake_we_started/1",
     "dist_util:handshake_other_started/1",