fuse-rs does not compile on systems with libfuse3

[liamnaddell]

I'm coming from the redox-os project which relies on fuse to build redoxfs.

Steps to reproduce:

install fuse3, clone fuse-rs, run cargo build.

error: failed to run custom build command for `fuse v0.3.1`

Caused by:
  process didn't exit successfully: `/home/liam/repos/redoxfs/target/debug/build/fuse-af7cecec4946dbaf/build-script-build` (exit status: 101)
  --- stdout
  cargo:rerun-if-env-changed=FUSE_NO_PKG_CONFIG
  cargo:rerun-if-env-changed=PKG_CONFIG
  cargo:rerun-if-env-changed=FUSE_STATIC
  cargo:rerun-if-env-changed=FUSE_DYNAMIC
  cargo:rerun-if-env-changed=PKG_CONFIG_ALL_STATIC
  cargo:rerun-if-env-changed=PKG_CONFIG_ALL_DYNAMIC
  cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG_PATH
  cargo:rerun-if-env-changed=PKG_CONFIG_PATH
  cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG_LIBDIR
  cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG_SYSROOT_DIR
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR

  --- stderr
  thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Failure { command: "\"pkg-config\" \"--libs\" \"--cflags\" \"fuse\" \"fuse >= 2.6.0\"", output: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "Package fuse was not found in the pkg-config search path.\nPerhaps you should add the directory containing `fuse.pc'\nto the PKG_CONFIG_PATH environment variable\nPackage 'fuse', required by 'virtual:world', not found\nPackage 'fuse', required by 'virtual:world', not found\n" } }', /home/liam/.cargo/registry/src/github.com-1ecc6299db9ec823/fuse-0.3.1/build.rs:10:76
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

how to fix:
When I switch the build.rs to search for fuse3 instead of fuse, the package compiles perfectly.

[adamcavendish]

Seems this project is not actively maintained and forked by cberner with https://github.com/cberner/fuser .