Hello,

Could you explain me, why Makefile rule:

clean:
    rm -f foo.{bar1,bar2,bar3}

does not result in removing files: foo.bar1 foo.bar2 and foo.bar3? I believe I saw pattern like that many times in various Makefiles, but I'm currently writing my own Makefile and can't make that rule work correctly (no files are removed).

I'm using:

• gnu make 3.81
• gnu bash 4.1.5

Bash evals that pattern as I suspect:

$ echo test.{a,b,c}
test.a test.b test.c

Thanks!