[Qemu-devel] [RFC PATCH] travis: Test out-of-tree builds

[Philippe Mathieu-Daudé]

Force one config to build 'out-of-tree' (object files and executables
are created in a tree outside the project source code).

Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
I noticed various out-of-tree issue in the last 2 merge windows.

Pseudo-randomly picked a build from the matrix which covers system + user.

 .travis.yml | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index fabfe9ec34..02e096f6a9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -50,6 +50,8 @@ notifications:
     on_failure: always
 env:
   global:
+    - SRC_DIR="."
+    - BUILD_DIR="."
     - TEST_CMD="make check"
     - MAKEFLAGS="-j3"
   matrix:
@@ -69,11 +71,15 @@ before_install:
   - wget -O - 
http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
   - git submodule update --init --recursive
 before_script:
-  - ./configure ${CONFIG} || { cat config.log && exit 1; }
+  - mkdir -p ${BUILD_DIR} && cd ${BUILD_DIR}
+  - ${SRC_DIR}/configure ${CONFIG} || { cat config.log && exit 1; }
 script:
   - make ${MAKEFLAGS} && ${TEST_CMD}
 matrix:
   include:
+    # Test out-of-tree builds
+    - env: CONFIG="--enable-debug --enable-debug-tcg"
+           BUILD_DIR="out-of-tree/build/dir" SRC_DIR="../../.."
     # Test with Clang for compile portability (Travis uses clang-5.0)
     - env: CONFIG="--disable-system"
       compiler: clang
-- 
2.18.0.rc2