Simpler static build

Use an ubuntu image to obtain a static libfuse without compiling.

Remove the need for sharing /dev/fuse with the build container.

Simpler build instructions.

Dockerfile.simpler

@@ -0,0 +1,11 @@
+FROM docker.io/ubuntu:rolling
+WORKDIR /build
+RUN apt-get update && \
+    apt-get install --no-install-recommends -y \
+        libc6-dev gcc g++ make automake autoconf clang pkgconf libfuse3-dev
+
+RUN cd fuse-overlayfs && \
+    sh autogen.sh && \
+    LIBS="-ldl" LDFLAGS="-static" ./configure --prefix /usr && \
+    make
+

README.md

@@ -47,19 +47,12 @@ the install script will usually create the device automatically; or
 
 4. Launch the build with the command (note the single dot `.` at the end): 
 ```
-buildah bud --device /dev/fuse -t fuse-overlayfs -f ./Dockerfile.static .
+buildah bud -v $PWD:/build/fuse-overlayfs -t fuse-overlayfs -f ./Dockerfile.simpler .
 ```
 
 5. Copy the resulting binary to your host:
 
-  * if you have `podman` installed:
 ```
-podman run --rm --entrypoint="[]" fuse-overlayfs cat /usr/bin/fuse-overlayfs | sudo tee /usr/bin/fuse-overlayfs > /dev/null
-```
-  * or, if you only have `buildah` installed:
-```
-container="$(buildah from fuse-overlayfs)"
-buildah run "$container" cat /usr/bin/fuse-overlayfs | sudo tee /usr/bin/fuse-overlayfs > /dev/null
-buildah rm "$container"
+sudo cp fuse-overlayfs /usr/bin/
 ```