2 files changed, 10 insertions, 3 deletions

diff --git a/packages/glpk/hmatrix-glpk.cabal b/packages/glpk/hmatrix-glpk.cabal
index ea6d0ce..3231ef7 100644
--- a/packages/glpk/hmatrix-glpk.cabal
+++ b/packages/glpk/hmatrix-glpk.cabal
@@ -30,7 +30,10 @@ library
 
     c-sources:          lib/Numeric/LinearProgramming/glpk.c
 
-    ghc-options:        -Wall
+    if impl(ghc < 7.4)
+        ghc-options:  -Wall -fno-warn-dodgy-imports
+    else 
+        ghc-options:  -Wall
 
     extra-libraries:    glpk
 
diff --git a/packages/special/hmatrix-special.cabal b/packages/special/hmatrix-special.cabal
index 4dd884b..25880a9 100644
--- a/packages/special/hmatrix-special.cabal
+++ b/packages/special/hmatrix-special.cabal
@@ -66,8 +66,12 @@ library
 
     other-modules:      Numeric.GSL.Special.Internal
 
-    ghc-options:        -Wall -fno-warn-unused-binds
-
+    if impl(ghc < 7.4)
+        ghc-options:  -Wall -fno-warn-unused-binds
+                            -fno-warn-dodgy-imports
+    else 
+        ghc-options:  -Wall -fno-warn-orphans
+                            
     if flag(safe-cheap)
         cpp-options: -DSAFE_CHEAP=safe
     else