Add -Zjson-target-spec

Author: jarovo

build.rs

@@ -81,7 +81,8 @@ fn build_uefi_bootloader() -> PathBuf {
     cmd.arg("--locked");
     cmd.arg("--target").arg("x86_64-unknown-uefi");
     cmd.arg("-Zbuild-std=core")
-        .arg("-Zbuild-std-features=compiler-builtins-mem");
+        .arg("-Zbuild-std-features=compiler-builtins-mem")
+        .arg("-Zjson-target-spec");
     cmd.arg("--root").arg(&out_dir);
     cmd.arg("-vv");
     cmd.env_remove("RUSTFLAGS");
@@ -145,7 +146,8 @@ fn build_bios_boot_sector() -> PathBuf {
         .arg("-Zjson-target-spec");
     cmd.arg("--profile").arg("stage-1");
     cmd.arg("-Zbuild-std=core")
-        .arg("-Zbuild-std-features=compiler-builtins-mem");
+        .arg("-Zbuild-std-features=compiler-builtins-mem")
+        .arg("-Zjson-target-spec");
     cmd.arg("--root").arg(&out_dir);
     cmd.env_remove("RUSTFLAGS");
     cmd.env_remove("CARGO_ENCODED_RUSTFLAGS");
@@ -216,7 +218,8 @@ fn build_bios_stage_2() -> PathBuf {
         .arg("-Zjson-target-spec");
     cmd.arg("--profile").arg("stage-2");
     cmd.arg("-Zbuild-std=core")
-        .arg("-Zbuild-std-features=compiler-builtins-mem");
+        .arg("-Zbuild-std-features=compiler-builtins-mem")
+        .arg("-Zjson-target-spec");
     cmd.arg("--root").arg(&out_dir);
     cmd.env_remove("RUSTFLAGS");
     cmd.env_remove("CARGO_ENCODED_RUSTFLAGS");
@@ -281,7 +284,8 @@ fn build_bios_stage_3() -> PathBuf {
         .arg("-Zjson-target-spec");
     cmd.arg("--profile").arg("stage-3");
     cmd.arg("-Zbuild-std=core")
-        .arg("-Zbuild-std-features=compiler-builtins-mem");
+        .arg("-Zbuild-std-features=compiler-builtins-mem")
+        .arg("-Zjson-target-spec");
     cmd.arg("--root").arg(&out_dir);
     cmd.env_remove("RUSTFLAGS");
     cmd.env_remove("CARGO_ENCODED_RUSTFLAGS");
@@ -346,7 +350,8 @@ fn build_bios_stage_4() -> PathBuf {
         .arg("-Zjson-target-spec");
     cmd.arg("--profile").arg("stage-4");
     cmd.arg("-Zbuild-std=core")
-        .arg("-Zbuild-std-features=compiler-builtins-mem");
+        .arg("-Zbuild-std-features=compiler-builtins-mem")
+        .arg("-Zjson-target-spec");
     cmd.arg("--root").arg(&out_dir);
     cmd.env_remove("RUSTFLAGS");
     cmd.env_remove("CARGO_ENCODED_RUSTFLAGS");