Pre_Post_Lib
(Project Properties window)
*.prj\BUILD_LIB\Pre_Post_Lib
The Pre_Post_Lib group enables you to run specific commands just before the librarian, or immediately after. You can insert OS commands, for example DOS/Windows, or UNIX shell commands, and any program on the local workstation. You can also use this group to insert $(macro_name) make commands.
If you are working in Windows, you must precede a shell command with a plus sign, for example, +echo this is a message. Examine the makefile to see what macros are available for these commands.