tests/docker: use debian-legacy-test-cross for alpha

Maintaining two sets of containers for test building is silly. While
it makes sense for the QEMU cross-compile targets to have their own
fat containers built by lcitool we might as well merge the other
random debian based compilers into the same one used on gitlab.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-7-alex.bennee@linaro.org>
diff --git a/.gitlab-ci.d/container-cross.yml b/.gitlab-ci.d/container-cross.yml
index d200f3e..0de1929 100644
--- a/.gitlab-ci.d/container-cross.yml
+++ b/.gitlab-ci.d/container-cross.yml
@@ -1,9 +1,3 @@
-alpha-debian-cross-container:
-  extends: .container_job_template
-  stage: containers
-  variables:
-    NAME: debian-alpha-cross
-
 amd64-debian-cross-container:
   extends: .container_job_template
   stage: containers
diff --git a/configure b/configure
index b4ea78c..c8d0d4f 100755
--- a/configure
+++ b/configure
@@ -1281,6 +1281,11 @@
         container_cross_prefix=aarch64-linux-gnu-
         container_cross_cc=${container_cross_prefix}gcc
         ;;
+      alpha)
+        container_image=debian-legacy-test-cross
+        container_cross_prefix=alpha-linux-gnu-
+        container_cross_cc=${container_cross_prefix}gcc
+        ;;
       arm)
         # We don't have any bigendian build tools so we only use this for ARM
         container_image=debian-armhf-cross
diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
index 5635d15..8270bdf 100644
--- a/tests/docker/Makefile.include
+++ b/tests/docker/Makefile.include
@@ -122,7 +122,6 @@
 	$(call debian-toolchain, $@)
 
 # These images may be good enough for building tests but not for test builds
-DOCKER_PARTIAL_IMAGES += debian-alpha-cross
 DOCKER_PARTIAL_IMAGES += debian-powerpc-test-cross
 DOCKER_PARTIAL_IMAGES += debian-hppa-cross
 DOCKER_PARTIAL_IMAGES += debian-m68k-cross debian-mips64-cross
diff --git a/tests/docker/dockerfiles/debian-alpha-cross.docker b/tests/docker/dockerfiles/debian-alpha-cross.docker
deleted file mode 100644
index 7fa7bf1..0000000
--- a/tests/docker/dockerfiles/debian-alpha-cross.docker
+++ /dev/null
@@ -1,19 +0,0 @@
-#
-# Docker cross-compiler target
-#
-# This docker target builds on the Debian Bullseye base image.
-#
-FROM docker.io/library/debian:11-slim
-
-RUN export DEBIAN_FRONTEND=noninteractive && \
-    apt-get update && \
-    apt-get install -y eatmydata && \
-    eatmydata apt-get dist-upgrade -y && \
-    eatmydata apt-get install --no-install-recommends -y \
-        gcc-alpha-linux-gnu \
-        libc6.1-dev-alpha-cross
-# As a final step configure the user (if env is defined)
-ARG USER
-ARG UID
-RUN if [ "${USER}" ]; then \
-  id ${USER} 2>/dev/null || useradd -u ${UID} -U ${USER}; fi