commit 930f49cf0bd099755a761e590d97b4727bb48f53
Author: David Sorber <david.sorber@gmail.com>
Date:   Sat Jul 14 21:21:35 2018 -0400

    Fix pasto.

diff --git a/software/packJPG_library/lib_src/bin/packjpg_simple.cc b/software/packJPG_library/lib_src/bin/packjpg_simple.cc
index c53f605..483a920 100644
--- a/software/packJPG_library/lib_src/bin/packjpg_simple.cc
+++ b/software/packJPG_library/lib_src/bin/packjpg_simple.cc
@@ -93,7 +93,7 @@ int main(int argc, char** argv)
     
     // Write output file
     std::ofstream output_stream(out_path.string(), std::ios::binary | std::ios::out);
-    if (! input_stream)
+    if (! output_stream)
     {
         std::cerr << "ERROR: unable to read from \"" << file_path << "\"" 
                   << std::endl;