From b792162113e08e32b9f3bc4d536dabcf5d9487cd Mon Sep 17 00:00:00 2001
From: "Nicholas J. Kain" <nicholas@kain.us>
Date: Thu, 12 Feb 2015 13:35:50 -0500
Subject: [PATCH] Add CROSSCOMPILE_MACHINENAME environment variable for CMake
 that will allow the host machine type detection to be skipped and the target
 MACHINENAME to be manually defined.

---
 CMakeLists.txt | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2399099..acaa451 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -120,12 +120,17 @@ else()
   message("Could not detect glibc version.")
 endif()
 
-execute_process(
-  COMMAND uname -m
-  COMMAND tr "\n" " "
-  COMMAND sed "s/ //"
-  OUTPUT_VARIABLE MACHINENAME
-  )
+if ("$ENV{CROSSCOMPILE_MACHINENAME}" STREQUAL "")
+  execute_process(
+    COMMAND uname -m
+    COMMAND tr "\n" " "
+    COMMAND sed "s/ //"
+    OUTPUT_VARIABLE MACHINENAME
+    )
+else()
+  message("skipped machine detection; MACHINENAME is '$ENV{CROSSCOMPILE_MACHINENAME}'")
+  set(MACHINENAME $ENV{CROSSCOMPILE_MACHINENAME})
+endif()
 
 if (${MACHINENAME} STREQUAL "x86_64")
   message("Detected that the current host is x86_64.  Enabling seccomp-filter.")