osx - Pkg-config script could not be found -


I'm trying to install some software, but I get the error: 

 < Code> configure: error: pkg-config script is not found or is too old. Make sure it is in your path or set the PKG_CONFIG ambient variable in the full path of pkg-config.   
 I just installed the  brew  command, and tried to use it to install pkg-config. It says that it is already established.  
 I've ensured that it is in the path through the  export PATH = $ PATH: / usr / bin / pkg-config .  
 In addition to this, install glib, it says that I'm missing I used the  brew install libfft  to install this missing package, however, The message is that it is not there. This is a new Mac, so maybe things are not running in the proper directory?  
 Any help would be appreciated, because I lost.   
 
 
 I do not know which formula you are trying to install, but the real problem is It may be that whatever you are trying to install is "dependent" pkg-config. This line may be required in:  
  depend_on "pkg-config" = & gt; : Build

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