python3Packages.orjson: fix cross compilation patch (#515894)

Now uses CARGO_CFG_TARGET_ARCH environment variable to correctly

detect the target architecture during cross-compilation.

---

 build.rs | 10 ++++++----

 1 file changed, 6 insertions(+), 4 deletions(-)

 build.rs | 7 ++++++--

 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/build.rs b/build.rs

index 42788623..28e006a9 100644

index 49a9a9a4..0a99698d 100644

--- a/build.rs

+++ b/build.rs

@@ -38,8 +38,11 @@ fn main() {

@@ -11,6 +11,9 @@ fn main() {

     #[allow(unused_variables)]

     let is_64_bit_python = matches!(python_config.pointer_width, Some(64));

-    #[cfg(all(target_arch = "x86_64", not(target_os = "macos")))]

-    if version_check::is_min_version("1.89.0").unwrap_or(false) && is_64_bit_python {

+    let target_arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap_or_default();

+    let target_os = env::var("CARGO_CFG_TARGET_OS").unwrap_or_default();

+    let target_arch = std::env::var("CARGO_CFG_TARGET_ARCH").unwrap_or_default();

+    let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap_or_default();

+

+    if target_arch == "x86_64" && target_os != "macos"

+        && version_check::is_min_version("1.89.0").unwrap_or(false) && is_64_bit_python {

         println!("cargo:rustc-cfg=feature=\"avx512\"");

     }

@@ -51,8 +54,7 @@ fn main() {

         println!("cargo:rustc-cfg=feature=\"optimize\"");

     }

-    #[cfg(any(target_arch = "x86_64", target_arch = "aarch64"))]

     match python_config.implementation {

         pyo3_build_config::PythonImplementation::CPython => {

             println!("cargo:rustc-cfg=CPython");

@@ -18,7 +21,7 @@ fn main() {

             println!("cargo:rustc-cfg=CPython");

             #[cfg(any(target_arch = "x86_64", target_arch = "aarch64"))]

-            if is_64_bit_python {

+            if (target_arch == "x86_64" || target_arch == "aarch64") && is_64_bit_python {

                 println!("cargo:rustc-cfg=feature=\"inline_int\"");

                 #[cfg(target_endian = "little")]

                 println!("cargo:rustc-cfg=feature=\"inline_str\"");

             }

@@ -50,7 +53,7 @@ fn main() {

     println!("cargo:rustc-check-cfg=cfg(PyPy)");

     #[cfg(all(target_arch = "x86_64", not(target_os = "macos")))]

-    if is_64_bit_python {

+    if target_arch == "x86_64" && target_os != "macos" && is_64_bit_python {

         println!("cargo:rustc-cfg=feature=\"avx512\"");

     }