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Description: Add allow-bsd flag for Debian GNU/kFreeBSD
On Debian GNU/kFreeBSD (FreeBSD kernel plus glibc), the BSD flavour of
sendfile is not usable (struct sf_hdtr is declared with -D_BSD_SOURCE=1,
but has no definition), and the Linux flavour doesn't work either since
MSG_MORE is absent. However, the fallback version works fine.
.
Unfortunately, Cabal treats kfreebsdgnu as os(freebsd), and os(kfreebsdgnu)
doesn't work. So, to make it possible to select the fallback
implementation on GNU/kFreeBSD, I believe a flag is necessary.
Author: Colin Watson <cjwatson@debian.org>
Forwarded: https://github.com/kazu-yamamoto/simple-sendfile/pull/13
Last-Update: 2013-06-14
Index: b/simple-sendfile.cabal
===================================================================
--- a/simple-sendfile.cabal
+++ b/simple-sendfile.cabal
@@ -12,6 +12,10 @@
Cabal-Version: >= 1.10
Build-Type: Simple
+Flag allow-bsd
+ Description: Allow use of BSD sendfile (disable on GNU/kFreeBSD)
+ Default: True
+
Library
Default-Language: Haskell2010
GHC-Options: -Wall
@@ -21,7 +25,7 @@
, network
, bytestring
-- NetBSD and OpenBSD don't have sendfile
- if os(freebsd)
+ if os(freebsd) && flag(allow-bsd)
CPP-Options: -DOS_BSD
Other-Modules: Network.Sendfile.BSD
Network.Sendfile.IOVec
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