chore(gpu): fix gpu package for publication

Makefile

@@ -144,7 +144,7 @@ fmt: install_rs_check_toolchain
 .PHONY: fmt_gpu # Format rust and cuda code
 fmt_gpu: install_rs_check_toolchain
 	cargo "$(CARGO_RS_CHECK_TOOLCHAIN)" fmt
-	cd backends/tfhe-cuda-backend/implementation/ && ./format_tfhe_cuda_backend.sh
+	cd "$(TFHECUDA_SRC)" && ./format_tfhe_cuda_backend.sh
 
 .PHONY: check_fmt # Check rust code format
 check_fmt: install_rs_check_toolchain

backends/tfhe-cuda-backend/LICENSE

@@ -1,6 +1,6 @@
 BSD 3-Clause Clear License
 
-Copyright © 2023 ZAMA.
+Copyright © 2024 ZAMA.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification,

backends/tfhe-cuda-backend/build.rs

@@ -12,7 +12,7 @@ fn main() {
                 Only Ubuntu is supported by tfhe-cuda-backend at this time. Build may fail\n"
             );
         }
-        let dest = cmake::build("../implementation");
+        let dest = cmake::build("cuda");
         println!("cargo:rustc-link-search=native={}", dest.display());
         println!("cargo:rustc-link-lib=static=tfhe_cuda_backend");
         println!("cargo:rustc-link-search=native=/usr/local/cuda/lib64");

tfhe/Cargo.toml

@@ -62,7 +62,7 @@ rayon = { version = "1.5.0" }
 bincode = "1.3.3"
 concrete-fft = { version = "0.3.0", features = ["serde", "fft128"] }
 pulp = "0.13"
-tfhe-cuda-backend = {path = "../backends/tfhe-cuda-backend/rust_api", optional = true}
+tfhe-cuda-backend = {path = "../backends/tfhe-cuda-backend", optional = true}
 aligned-vec = { version = "0.5", features = ["serde"] }
 dyn-stack = { version = "0.9" }
 paste = "1.0.7"