diff --git a/leksah-server.cabal b/leksah-server.cabal
--- a/leksah-server.cabal
+++ b/leksah-server.cabal
@@ -1,5 +1,5 @@
 name: leksah-server
-version: 0.15.0.3
+version: 0.15.0.4
 cabal-version: >= 1.10.2
 build-type: Simple
 license: GPL
@@ -195,7 +195,7 @@
     hs-source-dirs: tests
     main-is:    TestTool.hs
     build-depends: base >= 4.0.0.0 && <4.9,  hslogger >= 1.0.7 && <1.3,
-               leksah-server == 0.15.0.3,
+               leksah-server == 0.15.0.4,
                HUnit >=1.2 && <1.3, transformers >=0.2.2.0 && <0.5, conduit >= 1.0.8 && <1.3,
                conduit-extra >=1.0.0.1 && <1.2, resourcet
 
diff --git a/src/IDE/Metainfo/PackageCollector.hs b/src/IDE/Metainfo/PackageCollector.hs
--- a/src/IDE/Metainfo/PackageCollector.hs
+++ b/src/IDE/Metainfo/PackageCollector.hs
@@ -39,7 +39,7 @@
 import IDE.Utils.Utils
        (leksahMetadataPathFileExtension,
         leksahMetadataSystemFileExtension)
-import System.FilePath (dropFileName, (<.>), (</>))
+import System.FilePath (dropFileName, takeBaseName, (<.>), (</>))
 import Data.Binary.Shared (encodeFileSer)
 import qualified Data.Map as Map
        (fromListWith, fromList, keys, lookup)
@@ -172,12 +172,16 @@
             liftIO $ writeExtractedPackage writeAscii packageDescr
             liftIO $ writePackagePath (dropFileName fpSource) packageName
         runCabalConfigure fpSource = do
-            let dirPath      = dropFileName fpSource
+            let dirPath         = dropFileName fpSource
+                packageName     = takeBaseName fpSource
+                flagsFor "base" = ["-finteger-gmp2"]
+                flagsFor _      = []
+                flags           = flagsFor packageName
             distExists <- doesDirectoryExist $ dirPath </> "dist"
             unless distExists $ do
                 setCurrentDirectory dirPath
                 E.catch (do runTool' "cabal" ["clean"] Nothing
-                            runTool' "cabal" ["configure","--user"] Nothing
+                            runTool' "cabal" ("configure":"--user":flags) Nothing
                             return ())
                         (\ (_e :: E.SomeException) -> do
                             debugM "leksah-server" "Can't configure"