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author | Nathan Froyd <froydnj@gmail.com> | 2017-05-15 17:08:24 -0400 |
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committer | Nathan Froyd <froydnj@gmail.com> | 2017-05-17 10:17:40 -0400 |
commit | 536154475cd7508744efc20388c8b3619fe9747f (patch) | |
tree | 6b0f69ea5ebe222f488352dc3b0b1cac197f54c1 /components | |
parent | abb2985ffe96485b58f6b9e5f8b2dd3641d987b7 (diff) | |
download | servo-536154475cd7508744efc20388c8b3619fe9747f.tar.gz servo-536154475cd7508744efc20388c8b3619fe9747f.zip |
fix linux cross-compilation, take 2
We were using `cfg!(target_arch)` checks, which are not correct, as
those check the architecture of the compiled build script, not the clang
target.
Diffstat (limited to 'components')
-rw-r--r-- | components/style/build_gecko.rs | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/components/style/build_gecko.rs b/components/style/build_gecko.rs index 6da76e25f42..37b8caaf851 100644 --- a/components/style/build_gecko.rs +++ b/components/style/build_gecko.rs @@ -153,14 +153,16 @@ mod bindings { } if cfg!(target_os = "linux") { builder = builder.clang_arg("-DOS_LINUX=1"); - // We may be cross-compiling with a clang that defaults to - // a different architecture, so we should explicitly specify - // the bitness being used here. Specifying --target instead - // leads to difficulties with LLVM search paths. - if cfg!(target_arch = "x86") { - builder = builder.clang_arg("-m32") - } else if cfg!(target_arch = "x86_64") { - builder = builder.clang_arg("-m64") + // cfg!(target_arch) will tell us the architecture that this .rs + // file is being compiled for. We want the architecture that + // the clang we're going to invoking is compiling for, which + // isn't necessarily the same thing. Cargo provides the + // (undocumented) CARGO_CFG_TARGET_ARCH for this purpose + let target_arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap(); + if target_arch == "x86" { + builder = builder.clang_arg("-m32"); + } else if target_arch == "x86_64" { + builder = builder.clang_arg("-m64"); } } else if cfg!(target_os = "solaris") { builder = builder.clang_arg("-DOS_SOLARIS=1"); |