How to include clean target in Makefile

Question

I have a Makefile that looks like this  CXX   g   -O2 -Wall  all  code1 code2  code1  code1 cc utilities cc      CXX     -o     code2  code2 cc utilities cc      CXX     -o      What I want to do next is to include clean target so that every time I run make it will automatically delete the existing binary files of code1 and code2 before creating the new ones   I tried to put these lines at the very end of the makefile  but it doesn t work  clean       rm -f        echo Clean done   What s the right way to do it

User · Accepted Answer

In makefile language    means  name of the target   so rm -f    translates to rm -f clean   You need to specify to rm what exactly you want to delete  like rm -f   o code1 code2

User · Answer

By the way it is written  clean rule is invoked only if it is explicitly called   make clean  I think it is better  than make clean every time  If you want to do this by your way  try this    CXX   g   -O2 -Wall  all  clean code1 code2  code1  code1 cc utilities cc      CXX     -o     code2  code2 cc utilities cc      CXX     -o     clean       rm         echo Clean done

User · Answer

The best thing is probably to create a variable that holds your binaries   binaries code1 code2   Then use that in the all-target  to avoid repeating   all  clean   binaries    Now  you can use this with the clean-target  too  and just add some globs to catch object files and stuff    PHONY  clean  clean      rm -f   binaries    o   Note use of the  PHONY to make clean a pseudo-target  This is a GNU make feature  so if you need to be portable to other make implementations  don t use it

[unix] How to include clean target in Makefile?

Examples related to unix

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