Fix CI Debian Stretch build (#678)

The cmake package in debian-stretch has recently been updated: https://packages.debian.org/stretch-backports/cmake

This new version of cmake depends on a version of libarchive13 that is only available in stretch-backports-sloppy.

To allow libarchive13 to be installed from stretch-backports-sloppy I've added the debian-stretch-sloppy "suite" and changed -t stretch-backports to -t 'stretch-backports*'.

.circleci/config.yml

@@ -6,9 +6,10 @@ jobs:
     working_directory: ~/repo
     steps:
       - checkout
+      - run: echo deb http://deb.debian.org/debian stretch-backports-sloppy main >> /etc/apt/sources.list.d/debian-backports.list
       - run: apt-get update -y
       - run: apt-get install -y g++ libsdl2-dev libsdl2-mixer-dev libsdl2-ttf-dev git
-      - run: apt-get install -y -t stretch-backports cmake libsodium-dev
+      - run: apt-get install -y -t 'stretch-backports*' cmake libsodium-dev
       - run: cd build && cmake .. -DNIGHTLY_BUILD=ON
       - run: cd build && cmake --build . -j $(nproc)
       - store_artifacts: {path: ./build/devilutionx, destination: devilutionx_linux_x86_64}
@@ -30,9 +31,10 @@ jobs:
     working_directory: ~/repo
     steps:
       - checkout
+      - run: echo deb http://deb.debian.org/debian stretch-backports-sloppy main >> /etc/apt/sources.list.d/debian-backports.list
       - run: apt-get update -y
       - run: apt-get install -y g++ libsdl-dev libsdl-mixer1.2-dev libsdl-ttf2.0-dev git
-      - run: apt-get install -y -t stretch-backports cmake libsodium-dev
+      - run: apt-get install -y -t 'stretch-backports*' cmake libsodium-dev
       - run: cd build && cmake .. -DNIGHTLY_BUILD=ON -DUSE_SDL1=ON
       - run: cd build && cmake --build . -j $(nproc)
       - store_artifacts: {path: ./build/devilutionx, destination: devilutionx_linux_x86_64_sdl1}
@@ -42,10 +44,11 @@ jobs:
     working_directory: ~/repo
     steps:
       - checkout
+      - run: echo deb http://deb.debian.org/debian stretch-backports-sloppy main >> /etc/apt/sources.list.d/debian-backports.list
       - run: dpkg --add-architecture i386
       - run: apt-get update -y
       - run: apt-get install -y g++-multilib libsdl2-dev:i386 libsdl2-mixer-dev:i386 libsdl2-ttf-dev:i386 libsodium-dev git
-      - run: apt-get install -y -t stretch-backports cmake libsodium-dev:i386
+      - run: apt-get install -y -t 'stretch-backports*' cmake libsodium-dev:i386
       - run: cd build && cmake -DNIGHTLY_BUILD=ON -DCMAKE_TOOLCHAIN_FILE=../CMake/32bit.cmake ..
       - run: cd build && cmake --build . -j $(nproc)
       - store_artifacts: {path: ./build/devilutionx, destination: devilutionx_linux_x86}
@@ -77,7 +80,8 @@ jobs:
     steps:
       - checkout
       - run: echo deb http://deb.debian.org/debian stretch-backports main > /etc/apt/sources.list.d/debian-backports.list
-      - run: apt-get update && apt-get install -y -t stretch-backports cmake
+      - run: echo deb http://deb.debian.org/debian stretch-backports-sloppy main >> /etc/apt/sources.list.d/debian-backports.list
+      - run: apt-get update && apt-get install -y -t 'stretch-backports*' cmake
       - run: dkp-pacman -Syu --noconfirm
       # Install cmake files (https://github.com/devkitPro/docker/issues/3)
       - run: dkp-pacman -S --needed --noconfirm --quiet devkitpro-pkgbuild-helpers