From 26f1a337495c1b434defc7f7d144824c46450941 Mon Sep 17 00:00:00 2001
From: Steven Chamberlain <steven@pyro.eu.org>
Date: Tue, 5 Apr 2016 01:34:34 +0100
Subject: [PATCH] Building on GNU/kFreeBSD and possibly Hurd

* Only use ENOSR and ENOPKG if defined

ENOSR and ENOPKG are part of the POSIX optional STREAMS extension, and
are not available on most other platforms than GNU/Linux.

* Support building on other GNU platforms than Linux

Build for other GNU platforms the same way as Linux:  this includes
CMAKE_SYSTEM_NAME "GNU" (GNU/Hurd) and "GNU/kFreeBSD" (GNU/kFreeBSD).
---
 Sources/CMakeLists.txt                            | 2 +-
 Sources/Engine/Network/CommunicationInterface.cpp | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Sources/CMakeLists.txt b/Sources/CMakeLists.txt
index 9c3e655..6f6727d 100644
--- a/Sources/CMakeLists.txt
+++ b/Sources/CMakeLists.txt
@@ -8,7 +8,7 @@ project(SeriousEngine)
 find_package(SDL REQUIRED)
 
 # Set up some sanity stuff...
-if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+if(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME MATCHES "GNU|kFreeBSD")
     SET(LINUX TRUE)
 endif()
 if(APPLE)
diff --git a/Sources/Engine/Network/CommunicationInterface.cpp b/Sources/Engine/Network/CommunicationInterface.cpp
index bb7b6e5..6f35a92 100644
--- a/Sources/Engine/Network/CommunicationInterface.cpp
+++ b/Sources/Engine/Network/CommunicationInterface.cpp
@@ -134,8 +134,10 @@ static struct ErrorCode ErrorCodes[] = {
   ERRORCODE(ENODEV            , "ENODEV"),
   ERRORCODE(ECONNRESET        , "ECONNRESET"),
   ERRORCODE(ENOTCONN          , "ENOTCONN"),
-  #if !PLATFORM_MACOSX
+  #ifdef ENOSR
   ERRORCODE(ENOSR             , "ENOSR"),
+  #endif
+  #ifdef ENOPKG
   ERRORCODE(ENOPKG            , "ENOPKG"),
   #endif
 #endif