Use the result of a shell command in a conditional in a makefile -


I am trying to execute a conditional command in a makefile.

I open this work: 

  if [-z "$ (ls-a mydir)"]; Then \ echo "empty dir"; \ Else \ echo "Non empty Dear"; \ Fi

But if I try it in MessFile, "$ (ls-a mydir)" nothing spreads, if asdf is empty: 

  all: if [-z "$ (ls-A mydir)"]; Then \ echo "empty dir"; \ Else \ echo "Non empty Dear";   
  ls  does not expect the command extension: 
 
  $ mkdir mydir $ make if [-z ""]; Then \ echo "empty dir"; \ Else \ echo "Non empty Dear"; \ Fi Lower $ Touch mydir / myfile $ make if [-z ""]; Then \ echo "empty dir"; \ Else \ echo "Non empty Dear"; \ Fi $ decrease $ ls-a mydir myfile  
 
 How do I work within the conditional command?

I have little experience in writing the makefile though I think you can add two dollar sign Should use: 

  all: if [-z "$$ (ls-A mydir)"]; So if you want to show a dollar sign in your recipe, you have to double it ('$$').   
 This will change your makeup file and  $$ (ls-A mydir) : 
 
  $ ls mydir / 1 $ Make [["$ (LS-A MDIIR)"]; Then \ echo "empty dir"; \ Else \ echo "Non empty Dear"; \ Fi non-empty Dear $ rm mydir / 1 $ if [-z "$ (ls-A mydir)"]; Then \ echo "empty dir"; \ Else \ echo "Non empty Dear"; \ Fi blank Dior

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