From bda441991252b42dc09504b87379108cfe24f1fb Mon Sep 17 00:00:00 2001
From: Seth Flynn <getchoo@tuta.io>
Date: Wed, 5 Mar 2025 16:43:57 -0500
Subject: [PATCH 3/6] build: allow linking against system libffi

Adapted from https://cgit.freebsd.org/ports/commit/?id=680dc7bb031d0f708c2dd38f055ec8d63ee68b8a
---
 config/linux/build.xml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/config/linux/build.xml b/config/linux/build.xml
index 11e4743ab..4500d23c0 100644
--- a/config/linux/build.xml
+++ b/config/linux/build.xml
@@ -194,16 +194,18 @@
                     <include name="${module.lwjgl}/jawt/src/generated/c/*.c" if:true="${binding.jawt}"/>
                 </fileset>
             </source>
-            <beforeLink>
+            <beforeLink unless:true="${use.libffi.so}">
                 <parallel threadsPerProcessor="2" failonany="true" unless:set="lib-dependencies-uptodate">
                     <update-dependency module="core" artifact="core/libffi.a"/>
                 </parallel>
             </beforeLink>
             <link>
-                <fileset dir="${lib.native}/org/lwjgl">
+                <fileset dir="${lib.native}/org/lwjgl" unless:true="${use.libffi.so}">
                     <include name="libffi.a"/>
                 </fileset>
                 <arg value="-ldl"/>
+                <arg value="-lffi" if:true="${use.libffi.so}"/>
+                <arg value="-L${libffi.path}" if:set="libffi.path"/>
             </link>
         </build>
 
-- 
2.48.1