Remove vendored-protoc from the default feature set.

This implies the use of a preinstalled protobuf compiler, instead of attempting to build the
protobuf-src crate, which causes many build failures on less common platforms.

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.1.9] - 2024-07-28
+
+- Change the default configuration to use a preinstalled protobuf compiler, instead of attempting to
+  build the `protobuf-src` crate, which causes many headaches on less common platforms. This means
+  that the `vendored-protoc` feature is no longer included in the default features.
+
+
 ## [0.1.8] - 2024-07-26
 
 - New method `contains()` on `PsshBoxVec`.

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "pssh-box"
 description = "Parsing and serialization support for PSSH boxes used in DRM systems"
-version = "0.1.8"
+version = "0.1.9"
 authors = ["Eric Marsden <eric.marsden@risk-engineering.org>"]
 readme = "README.md"
 repository = "https://github.com/emarsden/pssh-box-rs/"
@@ -27,7 +27,7 @@ byteorder = "1.5.0"
 hex = "0.4.3"
 hex-literal = "0.4.1"
 hxdmp = "0.2.1"
-bstr = "1.9.1"
+bstr = "1.10.0"
 num_enum = "0.7.2"
 base64 = "0.22.1"
 tracing = { version = "0.1.40", features = ["attributes"] }
@@ -36,13 +36,12 @@ anyhow = "1.0.86"
 [dev-dependencies]
 clap = { version = "=4.3.24", features = ["cargo", "unicode", "wrap_help"] }
 reqwest = { version = "0.12.5", features = ["blocking"] }
-tokio = { version = "1.39.1", features = ["rt-multi-thread", "time", "macros"] }
+tokio = { version = "1.39.2", features = ["rt-multi-thread", "time", "macros"] }
 tracing-subscriber = { version = "0.3", features = ["env-filter", "time"] }
 test-log = { version = "0.2.16", features = ["trace"] }
 pretty_assertions = "1.4.0"
 
 [features]
-default = ["vendored-protoc"]
 vendored-protoc = ["dep:protobuf-src"]
 
 [build-dependencies]

README.md

@@ -79,14 +79,16 @@ if let PsshData::Widevine(ref pd) = pssh.pssh_data {
 ## Build
 
 The protoc compiler is used during the build process to translate the protobuf interface definition
-for Widevine PSSH data into Rust structs. This happens in the `build.rs` file.
-
-The default configuration of this crate depends on the `protobuf-src` crate to build a vendored
-version of the protoc compiler. This requires a working C++ compiler and autoconf support. To build
-on Windows, the simplest solution seems to be the UCRT64 environment of
-[MSYS2](https://www.msys2.org/); see our GitHub continuous integration workflow for one recipe that
-works. Disable the default feature `vendored-protoc` to use a locally installed protoc compiler
-instead (from Debian package `protobuf-compiler`, for example).
+for Widevine PSSH data into Rust structs. This happens in the `build.rs` file. The default
+configuration uses a **prebuilt protobuf compiler**, which must be locally installed (from Debian
+package `protobuf-compiler`, for example).
+
+As an alternative if the `vendored-protoc` feature is enabled, the `protobuf-src` crate is used to
+build a vendored version of the protoc compiler. This requires a working C++ compiler and cmake
+support, and tends to be rather unreliable (in particular, the abseil-cpp component of protobuf
+often causes build failures on any mildly unusual platform). To build on Windows, the simplest
+solution seems to be the UCRT64 environment of [MSYS2](https://www.msys2.org/); see our GitHub
+continuous integration workflow for one recipe that works.
 
 
 ## License