From 3ac0377835e2d18cef6cfa6814be10f1eb1aadf9 Mon Sep 17 00:00:00 2001
From: Victoria Mitchell <victoria_m@apple.com>
Date: Wed, 9 Mar 2022 16:00:34 -0700
Subject: [PATCH 1/2] link to pthreads on linux

---
 Package.swift | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Package.swift b/Package.swift
index bb10f18db..eac4647dd 100644
--- a/Package.swift
+++ b/Package.swift
@@ -47,7 +47,10 @@ let package = Package(
             "case_fold_switch.inc",
             "entities.inc",
           ],
-          cSettings: cSettings
+          cSettings: cSettings,
+          linkerSettings: [
+              .linkedLibrary("pthread", .when(platforms: [.linux])),
+          ]
         ),
         .target(name: "cmark-gfm-extensions",
           dependencies: [

From b8fcc01dc19849cad10050b824a293ea563bd3d6 Mon Sep 17 00:00:00 2001
From: Victoria Mitchell <victoria_m@apple.com>
Date: Wed, 9 Mar 2022 16:47:48 -0700
Subject: [PATCH 2/2] mark cmark-gfm module as `extern_c`

---
 src/include/module.modulemap | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/include/module.modulemap b/src/include/module.modulemap
index 1fc033abb..e59f0c196 100644
--- a/src/include/module.modulemap
+++ b/src/include/module.modulemap
@@ -1,4 +1,4 @@
-module cmark_gfm {
+module cmark_gfm [extern_c] {
     umbrella header "cmark-gfm.h"
     header "cmark-gfm_config.h"
     header "cmark-gfm-extension_api.h"