From 4574198553c93f963768d52e1734d6865bf27f72 Mon Sep 17 00:00:00 2001
From: William S Fulton <wsf@fultondesigns.co.uk>
Date: Mon, 21 Apr 2025 12:41:29 +0100
Subject: [PATCH] Javascript jsc c++20 testing quirk fix

---
 .github/workflows/linux.yml                    | 6 ++++++
 Examples/test-suite/typemap_array_qualifiers.i | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 2dd2a4ad5..62a785885 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -329,6 +329,12 @@ jobs:
           CPPSTD: c++20
           GCC: 13
           os: ubuntu-22.04
+        - SWIGLANG: javascript
+          ENGINE: jsc
+          CPPSTD: c++20
+          VER: '4.1'
+          GCC: 13
+          os: ubuntu-22.04
         - SWIGLANG: javascript
           ENGINE: napi
           VER: '22'
diff --git a/Examples/test-suite/typemap_array_qualifiers.i b/Examples/test-suite/typemap_array_qualifiers.i
index f7cce3c86..625c2ef1b 100644
--- a/Examples/test-suite/typemap_array_qualifiers.i
+++ b/Examples/test-suite/typemap_array_qualifiers.i
@@ -1,5 +1,10 @@
 %module typemap_array_qualifiers
 
+// Including this fragment ensures math.h is included before the '#define volatile' below,
+// without which gave peculiar partial specialization errors for javascript jsc and -std=c++20
+// - volatile is used in the template parameters of numeric_limits on Linux.
+%fragment("<math.h>");
+
 %define CLEAR_SWIGTYPE_TYPEMAPS
 %typemap(in)
    SWIGTYPE,