safe-cheap flag

1 files changed, 11 insertions, 1 deletions

diff --git a/hmatrix.cabal b/hmatrix.cabal
index 3d58fa2..4f10e34 100644
--- a/hmatrix.cabal
+++ b/hmatrix.cabal
@@ -1,5 +1,5 @@
 Name:               hmatrix
-Version:            0.8.3.1
+Version:            0.8.3.2
 License:            GPL
 License-file:       LICENSE
 Author:             Alberto Ruiz
@@ -56,6 +56,11 @@ flag unsafe
     description:    Compile the library with bound checking disabled.
     default:        False
 
+flag safe-cheap
+    description:    use slower non-blocking "safe" foreign calls
+                    to GSL special functions.
+    default:        False
+
 library
 
     Build-Depends:      base >= 3 && < 5,
@@ -143,6 +148,11 @@ library
     if flag(unsafe)
         cpp-options: -DUNSAFE
 
+    if flag(safe-cheap)
+        cpp-options: -DSAFE_CHEAP=safe
+    else
+        cpp-options: -DSAFE_CHEAP=unsafe
+
     if impl(ghc < 6.10.2)
         cpp-options: -DFINIT