From: hriztam <hritamstark05@gmail.com>
Date: Thu, 26 Feb 2026 13:19:20 +0000 (+0530)
Subject: gccrs: rust: Explicitly instantiate FFIVec<Piece> for C-linkage
X-Git-Tag: basepoints/gcc-17~185
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=cbbe85776d7572d8dc116a17b73c161fb3af6779;p=thirdparty%2Fgcc.git

gccrs: rust: Explicitly instantiate FFIVec<Piece> for C-linkage

gcc/rust/ChangeLog:

	* ast/rust-fmt.h: Explicitly instantiate FFIVec<Piece>.

Signed-off-by: Hritam Shrivastava <hritamstark05@gmail.com>
---

diff --git a/gcc/rust/ast/rust-fmt.h b/gcc/rust/ast/rust-fmt.h
index 4577665dc93..a7741981f53 100644
--- a/gcc/rust/ast/rust-fmt.h
+++ b/gcc/rust/ast/rust-fmt.h
@@ -398,6 +398,10 @@ enum ParseMode
   InlineAsm,
 };
 
+// Required to avoid Clang warning about returning an incomplete FFIVec<Piece>
+// from extern "C" functions.
+template class FFIVec<Piece>;
+
 extern "C" {
 
 FFIVec<Piece> collect_pieces (RustHamster input, bool append_newline,