[xen master] automation: update documentation about how to build a container

[patchbot@xxxxxxx]

commit 816d2797468dbcc8a3d23f67592b06929f67b2ab
Author:     Olaf Hering <olaf@xxxxxxxxx>
AuthorDate: Tue May 16 15:41:27 2023 +0000
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxx>
CommitDate: Wed May 17 16:14:11 2023 -0700

    automation: update documentation about how to build a container
    
    The command used in the example is different from the command used in
    the Gitlab CI pipelines. Adjust it to simulate what will be used by CI.
    This is essentially the build script, which is invoked with a number of
    expected environment variables such as CC, CXX and debug.
    
    In addition the input should not be a tty, which disables colors from
    meson and interactive questions from kconfig.
    
    Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 automation/build/README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/automation/build/README.md b/automation/build/README.md
index 2d07cafe0e..1c040533fd 100644
--- a/automation/build/README.md
+++ b/automation/build/README.md
@@ -96,7 +96,8 @@ docker login registry.gitlab.com/xen-project/xen
 make -C automation/build suse/opensuse-tumbleweed
 env CONTAINER_NO_PULL=1 \
   CONTAINER=tumbleweed \
-  automation/scripts/containerize bash -exc './configure && make'
+  CONTAINER_ARGS='-e CC=gcc -e CXX=g++ -e debug=y' \
+  automation/scripts/containerize automation/scripts/build < /dev/null
 make -C automation/build suse/opensuse-tumbleweed PUSH=1
 ```
 
--
generated by git-patchbot for /home/xen/git/xen.git#master