[libc-commits] [libc] 129c8b8 - add extern "C" to __errno_location's definition if in __cplusplus file

[Alex Brachet via libc-commits]

Author: Alex Brachet
Date: 2020-03-09T03:10:59-04:00
New Revision: 129c8b8081f43b79b3ac0442f1706e11b5dd5708

URL: https://github.com/llvm/llvm-project/commit/129c8b8081f43b79b3ac0442f1706e11b5dd5708
DIFF: https://github.com/llvm/llvm-project/commit/129c8b8081f43b79b3ac0442f1706e11b5dd5708.diff

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

Added: 
    

Modified: 
    libc/config/linux/api.td

Removed: 
    


################################################################################
diff  --git a/libc/config/linux/api.td b/libc/config/linux/api.td
index 1c9fa8a36c2e..673521f4eff9 100644
--- 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())
   }];