Add autotools build to localbuild docker images.

other/docker/autotools/Dockerfile

@@ -0,0 +1,23 @@
+################################################
+# autotools-linux
+FROM localbuild/travis
+
+USER root
+RUN apt-get update && apt-get install --no-install-recommends -y \
+ autoconf \
+ automake \
+ libtool \
+ && apt-get clean \
+ && rm -rf /var/lib/apt/lists/*
+USER travis
+
+# Copy minimal files to run "autotools-linux install", so we can avoid
+# rebuilding nacl and other things when only source files change.
+RUN mkdir -p /home/travis/build/c-toxcore /home/travis/cache
+WORKDIR /home/travis/build/c-toxcore
+COPY --chown=travis:travis c-toxcore/.travis/ /home/travis/build/c-toxcore/.travis/
+RUN .travis/autotools-linux install
+
+# Now copy the rest of the sources and run the build.
+COPY --chown=travis:travis . /home/travis/build/
+RUN .travis/autotools-linux script

other/docker/cmake/Dockerfile

@@ -0,0 +1,38 @@
+################################################
+# cmake-linux
+FROM localbuild/travis
+
+# Copy minimal files to run "cmake-linux install", so we can avoid rebuilding
+# astyle and other things when only source files change.
+RUN mkdir -p /home/travis/build/c-toxcore /home/travis/cache
+WORKDIR /home/travis/build/c-toxcore
+COPY --chown=travis:travis c-toxcore/.travis/ /home/travis/build/c-toxcore/.travis/
+RUN .travis/cmake-linux install
+
+# Now copy the rest of the sources and run the build.
+COPY --chown=travis:travis . /home/travis/build/
+RUN .travis/cmake-linux script
+
+################################################
+# autotools-linux
+FROM travis AS autotools
+
+USER root
+RUN apt-get update && apt-get install --no-install-recommends -y \
+ autoconf \
+ automake \
+ libtool \
+ && apt-get clean \
+ && rm -rf /var/lib/apt/lists/*
+USER travis
+
+# Copy minimal files to run "cmake-linux install", so we can avoid rebuilding
+# astyle and other things when only source files change.
+RUN mkdir -p /home/travis/build/c-toxcore /home/travis/cache
+WORKDIR /home/travis/build/c-toxcore
+COPY --chown=travis:travis c-toxcore/.travis/ /home/travis/build/c-toxcore/.travis/
+RUN .travis/autotools-linux install
+
+# Now copy the rest of the sources and run the build.
+COPY --chown=travis:travis . /home/travis/build/
+RUN .travis/autotools-linux script

other/docker/run-ci

@@ -1,15 +1,21 @@
 #!/bin/bash
 
-set -eu
+set -eux
+
+STAGE="${1-cmake}"
 
 readarray -t FILES <<<"$(git ls-files | sed -e 's,^,c-toxcore/,')"
 
+FILES+=(c-toxcore/.git)
+
 if [ -f .git ]; then
-  cd ..
-  tar -c "${FILES[@]}" "c-toxcore/.git" ".git/modules/c-toxcore" |
-    docker build -f c-toxcore/other/docker/Dockerfile.ci -
-else
-  cd ..
-  tar -c "${FILES[@]}" "c-toxcore/.git" |
-    docker build -f c-toxcore/other/docker/Dockerfile.ci -
+  FILES+=(.git/modules/c-toxcore)
 fi
+
+cd ..
+tar -c "${FILES[@]}" |
+  docker build -f "c-toxcore/other/docker/travis/Dockerfile" \
+    -t localbuild/travis -
+tar -c "${FILES[@]}" |
+  docker build -f "c-toxcore/other/docker/$STAGE/Dockerfile" \
+    -t "localbuild/$STAGE" -

other/docker/Dockerfile.ci → other/docker/travis/Dockerfile

@@ -62,14 +62,3 @@ USER travis
 ENV CC=gcc CXX=g++ \
 PATH=/home/travis/.local/bin:$PATH \
 TRAVIS_REPO_SLUG=TokTok/c-toxcore
-
-# Copy minimal files to run "cmake-linux install", so we can avoid rebuilding
-# astyle and other things when only source files change.
-RUN mkdir -p /home/travis/build/c-toxcore /home/travis/cache
-WORKDIR /home/travis/build/c-toxcore
-COPY --chown=travis:travis c-toxcore/.travis/ /home/travis/build/c-toxcore/.travis/
-RUN .travis/cmake-linux install
-
-# Now copy the rest of the sources and run the build.
-COPY --chown=travis:travis . /home/travis/build/
-RUN .travis/cmake-linux script