coru_fix_for_macos.diff

diff --git a/extlib/coru/coru_platform.c b/extlib/coru/coru_platform.c
index fb64002..bab7041 100644
--- a/extlib/coru/coru_platform.c
+++ b/extlib/coru/coru_platform.c
@@ -68,8 +68,8 @@ __asm__ (
 // we startup a coroutine.
 void coru_plat_prologue(void);
 __asm__ (
-    ".globl coru_plat_prologue \n"
-    "coru_plat_prologue: \n"
+    ".globl _coru_plat_prologue \n"
+    "_coru_plat_prologue: \n"
     "\t mov %r13, %rdi \n"  // tail call cb(data)
     "\t jmp *%r12 \n"
 );
@@ -101,8 +101,8 @@ int coru_plat_init(void **psp, uintptr_t **pcanary,
 // Swap stacks
 uintptr_t coru_plat_yield(void **sp, uintptr_t arg);
 __asm__ (
-    ".globl coru_plat_yield \n"
-    "coru_plat_yield: \n"
+    ".globl _coru_plat_yield \n"
+    "_coru_plat_yield: \n"
     "\t push %r15 \n"           // push callee saved registers
     "\t push %r14 \n"
     "\t push %r13 \n"