# HG changeset patch
# User Pantxo Diribarne <pantxo.diribarne@gmail.com>
# Date 1661719489 -7200
# Node ID 9ad55d2e1bbf35d9aacda4dd493c8c297124413a
# Parent  1c40fc2344f4ec1537b79ce0a74d777cf4f12a39
Make sure we don't pass short 8.3 path to latex on Windows (bug #62779).

* latex-text-renderer.cc (latex_renderer::write_tex_file): On Windows, use
canonicalized path of temporary directory.

diff -r 1c40fc2344f4 -r 9ad55d2e1bbf libinterp/corefcn/latex-text-renderer.cc
--- a/libinterp/corefcn/latex-text-renderer.cc	Sun Aug 28 14:19:43 2022 -0700
+++ b/libinterp/corefcn/latex-text-renderer.cc	Sun Aug 28 22:44:49 2022 +0200
@@ -215,7 +215,24 @@
     if (m_tmp_dir.empty ())
       {
         //Create the temporary directory
+#if defined (OCTAVE_USE_WINDOWS_API)
+        static std::string base_tmp_dir;
+
+        if (base_tmp_dir.empty ())
+          {
+            base_tmp_dir = sys::env::get_temp_directory ();
+
+            // Make sure we don't get short 8.3 path on Windows since some
+            // versions of latex on that platform don't support them
+            // (see bug #62779)
+            if (base_tmp_dir.find ('~') != std::string::npos)
+              base_tmp_dir = sys::canonicalize_file_name (base_tmp_dir);
+          }
+
+        m_tmp_dir = sys::tempnam (base_tmp_dir, "latex");
+#else
         m_tmp_dir = sys::tempnam ("", "latex");
+#endif
 
         if (sys::mkdir (m_tmp_dir, 0700) != 0)
           {