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Ensure that static_crt is set in the bootstrapper whenever using cc-rs to get a compiler command line. #98434

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merged 1 commit into from
Jun 29, 2022
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Ensure that static_crt is set in the bootstrapper whenever using cc-rs to get a compiler command line. #98434

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57 changes: 27 additions & 30 deletions src/bootstrap/cc_detect.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,30 @@ fn cc2ar(cc: &Path, target: TargetSelection) -> Option<PathBuf> {
}
}

fn new_cc_build(build: &Build, target: TargetSelection) -> cc::Build {
let mut cfg = cc::Build::new();
cfg.cargo_metadata(false)
.opt_level(2)
.warnings(false)
.debug(false)
.target(&target.triple)
.host(&build.build.triple);
match build.crt_static(target) {
Some(a) => {
cfg.static_crt(a);
}
None => {
if target.contains("msvc") {
cfg.static_crt(true);
}
if target.contains("musl") {
cfg.static_flag(true);
}
}
}
cfg
}

pub fn find(build: &mut Build) {
// For all targets we're going to need a C compiler for building some shims
// and such as well as for being a linker for Rust code.
Expand All @@ -72,27 +96,7 @@ pub fn find(build: &mut Build) {
.chain(iter::once(build.build))
.collect::<HashSet<_>>();
for target in targets.into_iter() {
let mut cfg = cc::Build::new();
cfg.cargo_metadata(false)
.opt_level(2)
.warnings(false)
.debug(false)
.target(&target.triple)
.host(&build.build.triple);
match build.crt_static(target) {
Some(a) => {
cfg.static_crt(a);
}
None => {
if target.contains("msvc") {
cfg.static_crt(true);
}
if target.contains("musl") {
cfg.static_flag(true);
}
}
}

let mut cfg = new_cc_build(build, target);
let config = build.config.target_config.get(&target);
if let Some(cc) = config.and_then(|c| c.cc.as_ref()) {
cfg.compiler(cc);
Expand All @@ -112,15 +116,8 @@ pub fn find(build: &mut Build) {

// If we use llvm-libunwind, we will need a C++ compiler as well for all targets
// We'll need one anyways if the target triple is also a host triple
let mut cfg = cc::Build::new();
cfg.cargo_metadata(false)
.opt_level(2)
.warnings(false)
.debug(false)
.cpp(true)
.target(&target.triple)
.host(&build.build.triple);

let mut cfg = new_cc_build(build, target);
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cfg.cpp(true);
let cxx_configured = if let Some(cxx) = config.and_then(|c| c.cxx.as_ref()) {
cfg.compiler(cxx);
true
Expand Down