[compiler-rt] [Profile][Windows] Drop extern for __buildid. (PR #80700)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-pgo

Author: Zequan Wu (ZequanWu)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/80700.diff


1 Files Affected:

- (modified) compiler-rt/lib/profile/InstrProfilingPlatformWindows.c (+1-1) 


``````````diff
diff --git a/compiler-rt/lib/profile/InstrProfilingPlatformWindows.c b/compiler-rt/lib/profile/InstrProfilingPlatformWindows.c
index c976776ae59e9..0751b28f81d0a 100644
--- a/compiler-rt/lib/profile/InstrProfilingPlatformWindows.c
+++ b/compiler-rt/lib/profile/InstrProfilingPlatformWindows.c
@@ -77,7 +77,7 @@ ValueProfNode *EndVNode = &VNodesEnd;
 /* lld-link provides __buildid symbol which ponits to the 16 bytes build id when
  * using /build-id flag. https://lld.llvm.org/windows_support.html#lld-flags */
 #define BUILD_ID_LEN 16
-COMPILER_RT_WEAK extern uint8_t __buildid[BUILD_ID_LEN];
+COMPILER_RT_WEAK uint8_t __buildid[BUILD_ID_LEN];
 COMPILER_RT_VISIBILITY int __llvm_write_binary_ids(ProfDataWriter *Writer) {
   if (*__buildid) {
     if (Writer &&

``````````

</details>


https://github.com/llvm/llvm-project/pull/80700