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bootstrap: -static-libstdc++ is a linker flag

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Fixes #70468. Closes #89983.
This commit is contained in:
Jon Gjengset 2022-02-11 12:03:51 -08:00
parent 07dae5a97b
commit 36692741a2
1 changed files with 8 additions and 14 deletions
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22
src/bootstrap/native.rs
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@ -262,18 +262,19 @@ impl Step for Llvm {
cfg.define("LLVM_LINK_LLVM_DYLIB", "ON");
}
// For distribution we want the LLVM tools to be *statically* linked to libstdc++
if builder.config.llvm_tools_enabled {
if !target.contains("msvc") {
// For distribution we want the LLVM tools to be *statically* linked to libstdc++.
// We also do this if the user explicitly requested static libstdc++.
if builder.config.llvm_tools_enabled || builder.config.llvm_static_stdcpp {
if !target.contains("msvc") && !target.contains("netbsd") {
if target.contains("apple") {
ldflags.exe.push(" -static-libstdc++");
ldflags.push_all("-static-libstdc++");
} else {
ldflags.exe.push(" -Wl,-Bsymbolic -static-libstdc++");
ldflags.push_all("-Wl,-Bsymbolic -static-libstdc++");
}
}
}
if !target.contains("freebsd") && target.starts_with("riscv") {
if target.starts_with("riscv") && !target.contains("freebsd") {
// RISC-V GCC erroneously requires linking against
// `libatomic` when using 1-byte and 2-byte C++
// atomics but the LLVM build system check cannot
@ -281,11 +282,7 @@ impl Step for Llvm {
// FreeBSD uses Clang as its system compiler and
// provides no libatomic in its base system so does
// not want this.
if !builder.config.llvm_tools_enabled {
ldflags.exe.push(" -latomic");
} else {
ldflags.exe.push(" -latomic -static-libstdc++");
}
ldflags.exe.push(" -latomic");
ldflags.shared.push(" -latomic");
}
@ -554,9 +551,6 @@ fn configure_cmake(
}
cfg.define("CMAKE_C_FLAGS", cflags);
let mut cxxflags: OsString = builder.cflags(target, GitRepo::Llvm).join(" ").into();
if builder.config.llvm_static_stdcpp && !target.contains("msvc") && !target.contains("netbsd") {
cxxflags.push(" -static-libstdc++");
}
if let Some(ref s) = builder.config.llvm_cxxflags {
cxxflags.push(" ");
cxxflags.push(s);