Add patch from 3.7 trunk to fix kfreebsd build failure

debian/changelog

@@ -9,12 +9,17 @@ llvm-toolchain-snapshot (1:3.8~svn245286-2) UNRELEASED; urgency=medium
     (Closes: #796811, #796843)
   * Remove an obsolete declaration about dragonegg
     (cherry-pick from 3.7 branch)
+  * debian/patches/kfreebsd-build-fix.patch:
+    - fix kfreebsd-* build failures by workarounding
+      missing F_DUPFD_CLOEXEC (rebased patch from gnome-terminal
+      10_kfreebsd-f_dupfd_cloexec.patch)
 
   [ James Price ]
   * d/p/fix-cmake-config-prefix.diff: fix cmake path,
     needs a change after upstream revision r241080
     (Addresses: #794905)
 
+
  -- Gianfranco Costamagna <locutusofborg@debian.org>  Tue, 18 Aug 2015 18:37:46 +0200
 
 llvm-toolchain-snapshot (1:3.8~svn245286-1) unstable; urgency=medium

debian/patches/kfreebsd-build-fix.patch

@@ -0,0 +1,41 @@
+## Description: add some description
+## Origin/Author: add some origin or author
+## Bug: bug URL
+Description: Avoid usage of F_DUPFD_CLOEXEC where not available (e.g. kfreebsd*)
+  The patch is mostly taken from 10_kfreebsd-f_dupfd_cloexec.patch (gnome-terminal)
+  Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=711529
+  Description: Fix build on kfreebsd
+  
+  kfreebsd doesn't have F_DUPFD_CLOEXEC, so use it conditionally.
+  As mentioned in the bug report, it will have support for it in
+  jessie, so we can drop it in jessie+1
+  Author: Emilio Pozuelo Monfort <pochu@debian.org>
+  Author: Petr Salinger <Petr.Salinger@seznam.cz>
+
+Author: Gianfranco Costamagna <locutusofborg@debian.org>
+--- llvm-toolchain-3.7-3.7~+rc3.orig/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
++++ llvm-toolchain-3.7-3.7~+rc3/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
+@@ -462,11 +462,24 @@ ProcessPOSIX::DoLaunch (Module *module,
+     int terminal = m_monitor->GetTerminalFD();
+     if (terminal >= 0) {
+         // The reader thread will close the file descriptor when done, so we pass it a copy.
++#ifdef F_DUPFD_CLOEXEC
+         int stdio = fcntl(terminal, F_DUPFD_CLOEXEC, 0);
+         if (stdio == -1) {
+             error.SetErrorToErrno();
+             return error;
+         }
++#else
++        int stdio = fcntl(terminal, F_DUPFD, 0);
++        if (stdio == -1) {
++            error.SetErrorToErrno();
++            return error;
++        }
++        stdio = fcntl(terminal, F_SETFD, FD_CLOEXEC);
++        if (stdio == -1) {
++            error.SetErrorToErrno();
++            return error;
++        }
++#endif
+         SetSTDIOFileDescriptor(stdio);
+     }

debian/patches/series

@@ -42,3 +42,4 @@ locale-issue-ld.diff
 CVE-2015-2305.patch
 bug783205.patch
 fix-cmake-config-prefix.diff
+kfreebsd-build-fix.patch