1From 89f6c846f02ad6d30b9ebb7eaaaa4fb6f9cec054 Mon Sep 17 00:00:00 2001
2From: Cody P Schafer <dev@codyps.com>
3Date: Thu, 27 Apr 2017 11:35:05 -0400
4Subject: [PATCH] CMakeDetermineSystem: use oe environment vars to load default
5 toolchain file in sdk
6
7Passing the toolchain by:
8
9 - shell aliases does not work if cmake is called by a script
10 - unconditionally by a wrapper script causes cmake to believe it is
11   configuring things when it is not (for example, `cmake --build` breaks).
12
13The OE_CMAKE_TOOLCHAIN_FILE variable is only used as a default if no
14toolchain is explicitly specified.
15
16Setting the CMAKE_TOOLCHAIN_FILE cmake variable is marked as cached
17because '-D' options are cache entries themselves.
18
19Upstream-Status: Inappropriate [oe-core specific]
20Signed-off-by: Cody P Schafer <dev@codyps.com>
21Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
22
23---
24 Modules/CMakeDetermineSystem.cmake | 7 +++++++
25 1 file changed, 7 insertions(+)
26
27diff --git a/Modules/CMakeDetermineSystem.cmake b/Modules/CMakeDetermineSystem.cmake
28index 8c7af067..ade2b189 100644
29--- a/Modules/CMakeDetermineSystem.cmake
30+++ b/Modules/CMakeDetermineSystem.cmake
31@@ -112,6 +112,13 @@ else()
32   endif()
33 endif()
34
35+if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
36+  if(DEFINED ENV{OE_CMAKE_TOOLCHAIN_FILE})
37+    set(CMAKE_TOOLCHAIN_FILE "$ENV{OE_CMAKE_TOOLCHAIN_FILE}" CACHE FILEPATH "toolchain file")
38+    message(STATUS "Toolchain file defaulted to '${CMAKE_TOOLCHAIN_FILE}'")
39+  endif()
40+endif()
41+
42 # if a toolchain file is used, the user wants to cross compile.
43 # in this case read the toolchain file and keep the CMAKE_HOST_SYSTEM_*
44 # variables around so they can be used in CMakeLists.txt.
45