diff --git a/README b/README
--- a/README
+++ b/README
@@ -1,3 +1,5 @@
-You may need to edit the cabal file to get the right libraries linked in. In
-particular, you may need to change "cblas" to "gslcblas". Or, if you are using
-ATLAS, you may need to add atlas at the end of the library list.
+If you care at all about performance, make sure you configure the library
+to use the best CBLAS installed on your system.  See the cabal file for
+details. To use atlas, run
+
+    runhaskell Setup.lhs configure -fatlas
diff --git a/gsl-random.cabal b/gsl-random.cabal
--- a/gsl-random.cabal
+++ b/gsl-random.cabal
@@ -1,5 +1,5 @@
 name:            gsl-random
-version:         0.1
+version:         0.1.1
 homepage:        http://stat.stanford.edu/~patperry/code/gsl-random
 synopsis:        Bindings the the GSL random number generation facilities.
 description:
@@ -18,6 +18,33 @@
 
 extra-source-files:     README
 
+-- Below are the flags for specifying which CBLAS to link with.  If no flag
+-- is specified, the default is to use the unoptimized CBLAS that comes with 
+-- the GSL.  To use the "custom" flag, you must edit the section at the end of
+-- the file with the name and location of the CBLAS library you want to use.
+
+flag atlas
+    description:    Link with ATLAS.
+    default:        False
+
+flag gsl
+    description:    Link with GSL unoptimized CBLAS.
+    default:        False
+
+flag mkl
+    description:    Link with Intel MKL.
+    default:        False
+
+flag veclib
+    description:    Link with Mac OS X vecLib.
+    default:        False
+    
+flag custom
+    description:    Link with a custom CBLAS.  
+    default:        False
+    -- You must edit this file below to use this option.  
+
+
 library
     exposed-modules:    GSL.Random.Gen
                         GSL.Random.Dist
@@ -27,6 +54,29 @@
     extensions:         ForeignFunctionInterface
     build-depends:      base
 
-    extra-libraries:    gsl cblas
-    extra-lib-dirs:     /opt/local/lib
+    if flag(atlas)
+        extra-libraries:    gsl cblas atlas m
+      
+    if flag(gsl)
+        extra-libraries:    gsl gslcblas m
+
+    if flag(mkl)
+      if arch(x86_64)
+        extra-libraries:    gsl mkl_lapack mkl_intel_lp64 mkl_sequential mkl_core m
+      else
+        extra-libraries:    gsl mkl_lapack mkl_intel mkl_sequential mkl_core m
+
+    if flag(veclib)
+        extra-libraries:    gsl cblas m
+
+    if flag(custom)
+        -- CUSTOM CBLAS LIBS GO HERE
+        extra-libraries:    
+        
+        -- PATH TO CUSTOM LIB DIR GOES HERE 
+        extra-lib-dirs:     
+    
+    -- fall back to gsl cblas if no flag is specified
+    if !flag(atlas) && !flag(gsl) && !flag(mkl) && !flag(veclib) && !flag(custom)
+        extra-libraries:    gsl gslcblas m