From 7a710f3f12114d6a5729673860acb8936ed3b13d Mon Sep 17 00:00:00 2001
From: Louis Pilfold <louis@lpil.uk>
Date: Mon, 28 Oct 2024 14:30:14 +0000
Subject: Emit helpful error on unsupported Erlang versions

Closes https://github.com/gleam-lang/stdlib/issues/714
---
 src/gleam_stdlib.erl | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/gleam_stdlib.erl b/src/gleam_stdlib.erl
index 1fc15b2..562ef23 100644
--- a/src/gleam_stdlib.erl
+++ b/src/gleam_stdlib.erl
@@ -206,8 +206,13 @@ string_pop_grapheme(String) ->
 bit_array_concat(BitArrays) ->
     list_to_bitstring(BitArrays).
 
+-if(?OTP_RELEASE >= 26).
 bit_array_base64_encode(Bin, Padding) ->
     base64:encode(Bin, #{padding => Padding}).
+-else.
+bit_array_base64_encode(_Bin, _Padding) ->
+    erlang:error(<<"Erlang OTP/26 or higher is required to use base64:encode">>).
+-endif.
 
 bit_array_slice(Bin, Pos, Len) ->
     try {ok, binary:part(Bin, Pos, Len)}
-- 
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