add extern "C" to __errno_location's definition if in __cplusplus file

2020-03-09 03:10:59 -04:00 · 2020-03-09 03:10:59 -04:00 · 129c8b8081
parent bdcbdb4848
commit 129c8b8081
1 changed files with 3 additions and 0 deletions
--- a/libc/config/linux/api.td
+++ b/libc/config/linux/api.td
@ -27,6 +27,9 @@ def NullMacro : MacroDef<"NULL"> {

 def ErrnoMacro : MacroDef<"errno"> {
  let Defn = [{
+    #ifdef __cplusplus
+    extern "C"
+    #endif
    int *__errno_location();
    #define errno (*__errno_location())
  }];