rust: build fixes and nom update

Update nom to ~3.0.

Prefix dependencies with ~, which will allow for newer patch
versions only. Minor version updates should get a test before
using.

Remove Cargo.lock from the repo, but still generate as part
of the vendoring process for release builds. This will ensure
that all users of a particular distribution tarball will be
linking against the same Rust dependencies.

rust/.gitignore

@@ -1,6 +1,7 @@
 !Cargo.toml.in
 /.cargo/config
 /Cargo.toml
+/Cargo.lock
 /target
 /vendor
 /gen

rust/Cargo.lock

@@ -1,21 +0,0 @@
-[root]
-name = "suricata"
-version = "4.0.0-dev"
-dependencies = [
- "libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "nom 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "libc"
-version = "0.2.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "nom"
-version = "2.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[metadata]
-"checksum libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)" = "88ee81885f9f04bff991e306fea7c1c60a5f0f9e409e99f6b40e3311a3363135"
-"checksum nom 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e5d4598834859fedb9a0a69d5b862a970e77982a92f544d547257a4d49469067"

rust/Cargo.toml.in

@@ -12,5 +12,5 @@ debug = true
 lua = []
 
 [dependencies]
-nom = "2.1.0"
+nom = "~3.0"
-libc = "0.2.0"
+libc = "~0.2.0"

rust/Makefile.am

@@ -1,12 +1,12 @@
 EXTRA_DIST = 	Cargo.toml \
-		Cargo.lock \
 		src \
 		.cargo/config.in \
 		gen-c-headers.py \
 		gen/c-headers
 
 if HAVE_RUST
-EXTRA_DIST +=	vendor
+EXTRA_DIST +=	Cargo.lock \
+		vendor
 endif
 
 if HAVE_RUST_VENDOR
@@ -53,6 +53,9 @@ distclean-local:
 check:
 	cd $(top_srcdir)/rust && CARGO_TARGET_DIR=$(abs_builddir)/target \
 		cargo test
+
+Cargo.lock: Cargo.toml
+	cargo update
 else
 all-local clean-local check:
 endif