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build(windows): add support for gnullvm targets

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This commit is contained in:
Maksim Bondarenkov 2024-07-14 07:50:32 +03:00 committed by Jack O'Connor
parent 84a4ec319a
commit d94882d66d
1 changed files with 6 additions and 2 deletions
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8
build.rs
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@ -74,7 +74,7 @@ fn is_big_endian() -> bool {
endianness() == "big" endianness() == "big"
} }
// Windows targets may be using the MSVC toolchain or the GNU toolchain. The // Windows targets may be using the MSVC toolchain or the MinGW toolchain. The
// right compiler flags to use depend on the toolchain. (And we don't want to // right compiler flags to use depend on the toolchain. (And we don't want to
// use flag_if_supported, because we don't want features to be silently // use flag_if_supported, because we don't want features to be silently
// disabled by old compilers.) // disabled by old compilers.)
@ -85,11 +85,15 @@ fn is_windows_msvc() -> bool {
&& target_components()[3] == "msvc" && target_components()[3] == "msvc"
} }
// MinGW toolchain uses 2 different targets depending on the main compiler.
// Target for a general MinGW toolchain ends with `-gnu` (GCC is used as C
// compiler). Target for a LLVM-MinGW toolchain (Clang is used as C compiler)
// ends with `-gnullvm`.
fn is_windows_gnu() -> bool { fn is_windows_gnu() -> bool {
// Some targets are only two components long, so check in steps. // Some targets are only two components long, so check in steps.
target_components()[1] == "pc" target_components()[1] == "pc"
&& target_components()[2] == "windows" && target_components()[2] == "windows"
&& target_components()[3] == "gnu" && target_components()[3] != "msvc"
} }
fn new_build() -> cc::Build { fn new_build() -> cc::Build {