[commit: ghc] wip/nfs-locking: Attempt to fix the 'unknown symbol stat' issue on Travis Linux (116e64d)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/nfs-locking
Link       : http://ghc.haskell.org/trac/ghc/changeset/116e64d5596233dcacff48ce7e5e0531f730e6bd/ghc

>---------------------------------------------------------------

commit 116e64d5596233dcacff48ce7e5e0531f730e6bd
Author: Andrey Mokhov <andrey.mokhov at gmail.com>
Date:   Sun Jul 17 00:52:00 2016 +0100

    Attempt to fix the 'unknown symbol stat' issue on Travis Linux
    
    See #259.


>---------------------------------------------------------------

116e64d5596233dcacff48ce7e5e0531f730e6bd
 src/Settings/Packages/Base.hs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Settings/Packages/Base.hs b/src/Settings/Packages/Base.hs
index 261c2bb..dce49e7 100644
--- a/src/Settings/Packages/Base.hs
+++ b/src/Settings/Packages/Base.hs
@@ -6,5 +6,6 @@ import Predicate
 import UserSettings
 
 basePackageArgs :: Args
-basePackageArgs = package base ?
-    builder GhcCabal ? arg ("--flags=" ++ takeFileName (pkgPath integerLibrary))
+basePackageArgs = package base ? mconcat
+    [ builder GhcCabal ? arg ("--flags=" ++ takeFileName (pkgPath integerLibrary))
+    , builder Cc ? arg "-O2" ] -- Fix the 'unknown symbol stat' issue, see #259.