diff --git a/lib/std/os/posix/process.c3 b/lib/std/os/posix/process.c3
index 969ffd4e7..23bb591a5 100644
--- a/lib/std/os/posix/process.c3
+++ b/lib/std/os/posix/process.c3
@@ -55,9 +55,7 @@ const CInt __W_CONTINUED = 0xffff;
 const CInt WNOHANG = 1;
 const CInt WUNTRACES = 2;
 
-extern fn CInt backtrace(void** buffer, CInt size) @if(env::DARWIN);
-
-fn CInt backtrace(void** buffer, CInt size) @if(!env::DARWIN)
+fn CInt backtrace(void** buffer, CInt size) @weak @extern("backtrace")
 {
 	if (size < 1) return 0;
 	void*[128] buffer_first;
diff --git a/src/version.h b/src/version.h
index 5f71dec58..f6421e595 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define COMPILER_VERSION "0.4.707"
+#define COMPILER_VERSION "0.4.708"