From 59b5ae806fddfbda5d916ec0fb2a7f15e0361b01 Mon Sep 17 00:00:00 2001
From: Siva Chandra <sivachandra@gmail.com>
Date: Wed, 13 Sep 2023 22:52:20 -0700
Subject: [PATCH] [libc][NFC] Make the dummy header target under overlay build
 a library. (#66329)

This fixes the broken overlay builders.
---
 libc/cmake/modules/LLVMLibCHeaderRules.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libc/cmake/modules/LLVMLibCHeaderRules.cmake b/libc/cmake/modules/LLVMLibCHeaderRules.cmake
index e259a512ea760..1027a55946d5f 100644
--- a/libc/cmake/modules/LLVMLibCHeaderRules.cmake
+++ b/libc/cmake/modules/LLVMLibCHeaderRules.cmake
@@ -86,7 +86,7 @@ function(add_gen_header target_name)
   get_fq_target_name(${target_name} fq_target_name)
   if(NOT LLVM_LIBC_FULL_BUILD)
     # We don't want to use generated headers if we are doing a non-full-build.
-    add_custom_target(${fq_target_name})
+    add_library(${fq_target_name} INTERFACE)
     return()
   endif()
   if(NOT ADD_GEN_HDR_DEF_FILE)