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diff --git a/INSTALL.md b/INSTALL.md
index 157036e..014d614 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -55,6 +55,32 @@ using this method.
 
 [winpack]: https://github.com/downloads/AlbertoRuiz/hmatrix/gsl-lapack-windows.zip
 
+### Alternative Windows build
+
+1) 
+
+        > cabal update
+
+2) Download and unzip somewhere OpenBLAS http://www.openblas.net/
+
+3) In a normal Windows cmd:
+
+    > cabal install --flags=openblas --extra-lib-dirs=C:\...\OpenBLAS\lib --extra-include-dir=C:\...\OpenBLAS\include
+
+### Stack-based Windows build
+
+Similar should be build under other OSes, like Linux and OSX.
+
+1) 
+
+        > stack setup
+
+2) Download and unzip somewhere OpenBLAS http://www.openblas.net/
+
+3) Example in a normal Windows cmd for building hmatrix base lib:
+
+     > stack install hmatrix --flag hmatrix:openblas --extra-lib-dirs=C:\...\OpenBLAS\lib --extra-include-dir=C:\...\OpenBLAS\include
+         
 ## Tests ###############################################
 
 After installation we can verify that the library works as expected: