diff --git a/src/ModelTree.cc b/src/ModelTree.cc
index 23c513d6cf51f97f9d6a2f9e6a3ab0a9cc11fc6d..cc27315018044c69f432e0d144d507123962b24c 100644
--- a/src/ModelTree.cc
+++ b/src/ModelTree.cc
@@ -1851,11 +1851,12 @@ ModelTree::initializeMEXCompilationWorkers(int numworkers, const filesystem::pat
       unique_lock<mutex> lk {mex_compilation_mut};
       filesystem::path output;
       string cmd;
-
+  */
       /* Look for an object to compile, whose prerequisites are already
          compiled. If found, remove it from the queue, save the output path and
          the compilation command, and return true. Must be run under the lock. */
-      auto pick_job = [&cmd, &output]
+  /*
+    auto pick_job = [&cmd, &output]
       {
         for (auto it {mex_compilation_queue.begin()}; it != mex_compilation_queue.end(); ++it)
           if (const auto &prerequisites {get<1>(*it)}; // Will become dangling after erase
@@ -1882,27 +1883,32 @@ ModelTree::initializeMEXCompilationWorkers(int numworkers, const filesystem::pat
               mex_compilation_failed.insert(output);
             else
               mex_compilation_done.insert(output);
+  */
             /* The object just compiled may be a prerequisite for several
                other objects, so notify all waiting workers. Also needed to
                notify the main thread when in
                ModelTree::waitForMEXCompilationWorkers().*/
-            mex_compilation_cv.notify_all();
+  /*
+    mex_compilation_cv.notify_all();
           }
     });
-
+  */
   /* Set some environment variables needed for compilation on Windows/MATLAB
      and macOS/Octave.
      For Windows/MATLAB, this should be done only once, because otherwise
      the PATH variable can become too long and GCC will not be found. */
+  /*
   if (mexext == "mexw64")
     {
       // Put the MinGW environment shipped with Dynare in the path
       auto mingwpath = dynareroot / "mingw64" / "bin";
       string newpath = "PATH=" + mingwpath.string() + ';' + getenv("PATH");
+  */
       /* We can’t use setenv() since it is not available on MinGW. Note that
          putenv() seems to make an internal copy of the string on MinGW,
          contrary to what is done on GNU/Linux and macOS. */
-      if (putenv(const_cast<char *>(newpath.c_str())) != 0)
+  /*
+    if (putenv(const_cast<char *>(newpath.c_str())) != 0)
         {
           cerr << "Can't set PATH" << endl;
           exit(EXIT_FAILURE);
@@ -1911,9 +1917,11 @@ ModelTree::initializeMEXCompilationWorkers(int numworkers, const filesystem::pat
 #ifdef __APPLE__
   else if (mexext == "mex")
     {
+  */
       /* On macOS, with Octave, enforce GCC, otherwise Clang will be used, and
          it does not accept our custom optimization flags (see dynare#1797) */
-      filesystem::path gcc_path {findGccOnMacos(mexext)};
+  /*
+    filesystem::path gcc_path {findGccOnMacos(mexext)};
       if (setenv("CC", gcc_path.c_str(), 1) != 0)
         {
           cerr << "Can't set CC environment variable" << endl;
@@ -1926,7 +1934,7 @@ ModelTree::initializeMEXCompilationWorkers(int numworkers, const filesystem::pat
           exit(EXIT_FAILURE);
         }
     }
-*/
+  */
 }
 
 void