CCS4 open old CCS3 DSP/BIOS project

Problem:

after opening old DSP/BIOS project CCS4 fails to link due to several errors like:

run placement fails for object ".abc"
absolute symbol "XYZ" being redefined

Solution:

CCS4 already uses all defined sections from database without generating a linker command file. Old DSP/BIOS projects contain automatically generated linker command files. These *.cmd files are imported by CCS4 to the current project and linked again to the current executable. Exclude these files from build for proper link process.