Add Dockerfile

Dockerfile

+FROM gcc:latest
+
+RUN apt-get update && apt-get install -y build-essential
+RUN apt-get install -y libfftw3-dev
+RUN apt-get install -y libsndfile1-dev
+RUN apt-get install -y automake
+RUN apt-get install -y autoconf
+RUN apt-get install -y libtool
+RUN apt-get install -y autoconf-archive
+
+ADD . /audiowmark
+WORKDIR /audiowmark
+
+RUN ./autogen.sh
+RUN make
+RUN make install
+
+ENTRYPOINT ["/usr/local/bin/audiowmark"]

Makefile.am

 SUBDIRS = src
+ACLOCAL_AMFLAGS = -I m4

README

@@ -20,3 +20,11 @@ or, when building from git
 	./bootstrap.sh --enable-shared --enable-sse --enable-float && \
 	make && \
 	sudo make install
+
+Docker Build
+
+You should be able to execute audiowmark via Docker.
+Example that outputs the usage message:
+
+  docker build -t audiowmark .
+  docker run -it audiowmark -h

autogen.sh

@@ -34,4 +34,4 @@ fi
 test "0$DIE" -gt 0 && exit 1
 
 echo "Running: autoreconf -i && ./configure $@"
-autoreconf -i -Wno-portability && ./configure "$@"
+autoreconf -f -i -Wno-portability && ./configure "$@"