--- a/fftw.conf
+++ b/fftw.conf
@@ -5,10 +5,10 @@
 
 %FFTW_CONFIG = (
 
-  # Location to search for the FFTW libs
+  # Location to search for the FFTW libs, overrides default if defined
   FFTW_LIBS => undef,    # [ '/lib','/usr/lib','/usr/local/lib'],
 
-  # Location to find FFTW includes:
+  # Location to find FFTW includes, overrides default if defined
   FFTW_INC => undef,     # ['/usr/include/','/usr/local/include'],
 
   # FFTW Numeric Precision Type to link in: (double or single precision)