1. Right-click on a C/C++ project and select "Properties".

2. Click on the "Make" category.

There is a field labeled "Build Result".  This name is very misleading.  The real purpose of this field is to specify
the executable to run when the user selects the "Run" command.  For example, if your project produces a library, you
will probably want to specify an executable that uses the library (such as a test case), not the library itself.  I
suggest moving this field to the "Run" category and renaming it to "Executable" or "Program to Run".