[gcc/devel/rust/master] Add an explicit value to proc macro enum kind

[Thomas Schwinge via Gcc-cvs]

https://gcc.gnu.org/g:5afa8b58b73d46091117867aff6f22703c2cb67f

commit 5afa8b58b73d46091117867aff6f22703c2cb67f
Author: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>
Date:   Wed Sep 27 16:21:25 2023 +0200

    Add an explicit value to proc macro enum kind
    
    We'll need this value in the final binary, it should therefore be kept
    explicit.
    
    ChangeLog:
    
            * libgrust/libproc_macro_internal/proc_macro.h (enum ProcmacroTag): 
Add
            explicit value for proc macro tag enum.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>

Diff:
---
 libgrust/libproc_macro_internal/proc_macro.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libgrust/libproc_macro_internal/proc_macro.h 
b/libgrust/libproc_macro_internal/proc_macro.h
index 457ec4693f64..9e142ffa79ff 100644
--- a/libgrust/libproc_macro_internal/proc_macro.h
+++ b/libgrust/libproc_macro_internal/proc_macro.h
@@ -66,7 +66,7 @@ struct Bang
 
 enum ProcmacroTag
 {
-  CUSTOM_DERIVE,
+  CUSTOM_DERIVE = 0,
   ATTR,
   BANG,
 };