From ad3a765dbddf067f2c788eb5ab01c3578ac7f0dc Mon Sep 17 00:00:00 2001
From: aymanhab <ahabib@stanford.edu>
Date: Tue, 22 Oct 2024 15:07:15 -0700
Subject: [PATCH] Modify configure script to handle API distribution.

---
 Bindings/Java/Matlab/configureOpenSim.m.in | 25 +++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/Bindings/Java/Matlab/configureOpenSim.m.in b/Bindings/Java/Matlab/configureOpenSim.m.in
index bf082979c9..b92d77426c 100644
--- a/Bindings/Java/Matlab/configureOpenSim.m.in
+++ b/Bindings/Java/Matlab/configureOpenSim.m.in
@@ -95,6 +95,10 @@ function [openSimFolder] = uiGetOpenSimFolder()
         appDir = fullfile(openSimFolder, [name ext '.app']);
         if exist(appDir, 'dir')
             openSimFolder = fullfile(appDir, 'Contents', 'Resources', 'OpenSim');
+        else 
+            % This could be an API install
+            api_distro = true
+            showMessage('Application not found, assuming API distribution.', 'Info', false);
         end
     end
 end
@@ -120,8 +124,13 @@ try
         while ~correctFolder
             openSimFolder = uiGetOpenSimFolder();
             % Check if the user selected a valid folder.
+            if api_distro
+                subfoldername = 'etc';
+            else
+                subfoldername = '@CMAKE_INSTALL_SYSCONFDIR@';
+            end
             buildInfoFile = fullfile(openSimFolder, ...
-                    '@CMAKE_INSTALL_SYSCONFDIR@', 'OpenSim_buildinfo.txt');
+                    subfoldername, 'OpenSim_buildinfo.txt');
             if exist(buildInfoFile)
                 correctFolder = true;
             else
@@ -137,8 +146,13 @@ try
 %% Edit the Java class path (need full path for print)
     toolboxLocal = fullfile(matlabroot, 'toolbox', 'local');
     % Create the string names used
+    if api_distro
+        jarPath = 'share/java'
+    else
+        jarPath = '@OPENSIM_INSTALL_JAVAJARDIR@'
+    end
     OpenSimJarPath =  fullfile(openSimFolder, ...
-            '@OPENSIM_INSTALL_JAVAJARDIR@', '@SWIG_JAVA_JAR_NAME@');
+            jarPath, '@SWIG_JAVA_JAR_NAME@');
     classFileTool = fullfile(toolboxLocal, 'classpath.txt');
     % Keep track of if (1) we detected existing OpenSim
     % and (2) if we had issues removing existing OpenSim entries.
@@ -162,8 +176,13 @@ try
     end
 
 %% Edit the Java library path.
+    if api_distro
+        libPath = 'lib'
+    else
+        libPath = '@OPENSIM_INSTALL_SHAREDLIBDIR@'
+    end
     % Create the string names used
-    OpenSimLibPath  = fullfile(openSimFolder, '@OPENSIM_INSTALL_SHAREDLIBDIR@');
+    OpenSimLibPath  = fullfile(openSimFolder, libPath);
     libraryFileTool = fullfile(toolboxLocal, 'librarypath.txt');
     if matlabOlderThan2012b
         rmPrev = rmPrev | editPathTxtFile(libraryFileTool, OpenSimLibPath);