darwin: remove syscall usage (without -no-crt) to comply to Apple guidelines

1 files changed, 18 insertions, 5 deletions

diff --git a/base/runtime/os_specific_darwin.odin b/base/runtime/os_specific_darwin.odin
index 61c17a597..1bf29e785 100644
--- a/base/runtime/os_specific_darwin.odin
+++ b/base/runtime/os_specific_darwin.odin
@@ -5,11 +5,24 @@ package runtime
 import "base:intrinsics"
 
 _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
-	WRITE  :: 0x2000004
 	STDERR :: 2
-	ret := intrinsics.syscall(WRITE, STDERR, uintptr(raw_data(data)), uintptr(len(data)))
-	if ret < 0 {
-		return 0, _OS_Errno(-ret)
+	when ODIN_NO_CRT {
+		WRITE  :: 0x2000004
+		ret := intrinsics.syscall(WRITE, STDERR, uintptr(raw_data(data)), uintptr(len(data)))
+		if ret < 0 {
+			return 0, _OS_Errno(-ret)
+		}
+		return int(ret), 0
+	} else {
+		foreign {
+			write   :: proc(handle: i32, buffer: [^]byte, count: uint) -> int ---
+			__error :: proc() -> ^i32 ---
+		}
+
+		if ret := write(STDERR, raw_data(data), len(data)); ret >= 0 {
+			return int(ret), 0
+		}
+
+		return 0, _OS_Errno(__error()^)
 	}
-	return int(ret), 0
 }