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authorBen Gamari <ben@smart-cactus.org>2020-03-23 14:55:14 -0400
committerBen Gamari <ben@smart-cactus.org>2020-03-23 14:56:10 -0400
commit16cdad330e2760210aec3582fdcbe518ecba84b9 (patch)
tree999da055961969f98887f61145aa5802d2c95b8a
parentabc02b4036c2d8efe50b720d8c8103c4f1b8899a (diff)
downloadhaskell-wip/T17950.tar.gz
base: Enable large file support for OFD locking impl.wip/T17950
Not only is this a good idea in general but this should also avoid issue #17950 by ensuring that off_t is 64-bits.
-rw-r--r--libraries/base/GHC/IO/Handle/Lock/LinuxOFD.hsc3
1 files changed, 3 insertions, 0 deletions
diff --git a/libraries/base/GHC/IO/Handle/Lock/LinuxOFD.hsc b/libraries/base/GHC/IO/Handle/Lock/LinuxOFD.hsc
index 5e4e642009..826656c936 100644
--- a/libraries/base/GHC/IO/Handle/Lock/LinuxOFD.hsc
+++ b/libraries/base/GHC/IO/Handle/Lock/LinuxOFD.hsc
@@ -12,6 +12,9 @@ module GHC.IO.Handle.Lock.LinuxOFD where
import GHC.Base () -- Make implicit dependency known to build system
#else
+-- Not only is this a good idea but it also works around #17950.
+#define _FILE_OFFSET_BITS 64
+
#include <unistd.h>
#include <fcntl.h>