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build: add support for rustc_wrapper

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Fixes #690.
This commit is contained in:
Bert Belder 2018-09-25 18:45:09 -07:00
parent f10012facf
commit 47e8242b29
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1 changed files with 11 additions and 1 deletions
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12
build_extra/rust/rust.gni
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@ -2,6 +2,10 @@ declare_args() {
# Absolute path of rust build files. # Absolute path of rust build files.
rust_build = "//build_extra/rust/" rust_build = "//build_extra/rust/"
# Wrapper executable for rustc invocations. This can be used for a caching
# utility, e.g. sccache.
rustc_wrapper = ""
# treat the warnings in rust files as errors # treat the warnings in rust files as errors
rust_treat_warnings_as_errors = true rust_treat_warnings_as_errors = true
} }
@ -114,7 +118,13 @@ template("run_rustc") {
] ]
depfile = "$out_dir/$crate_name$crate_suffix.d" depfile = "$out_dir/$crate_name$crate_suffix.d"
args = [ if (rustc_wrapper != "") {
args = [ rustc_wrapper ]
} else {
args = []
}
args += [
"rustc", "rustc",
rebase_path(source_root, root_build_dir), rebase_path(source_root, root_build_dir),
"--crate-name=$crate_name", "--crate-name=$crate_name",