From 7a29b634218a2c0519cd6fb408bc2d663e6619e2 Mon Sep 17 00:00:00 2001
From: Jakob Lykke Andersen <Jakob@caput.dk>
Date: Sun, 15 Mar 2020 20:46:01 +0100
Subject: [PATCH] C, prepare for multiline rendering

---
 sphinx/domains/c.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/sphinx/domains/c.py b/sphinx/domains/c.py
index 85380525f..243f57488 100644
--- a/sphinx/domains/c.py
+++ b/sphinx/domains/c.py
@@ -1215,8 +1215,14 @@ class ASTDeclaration(ASTBase):
                            env: "BuildEnvironment", options: Dict) -> None:
         verify_description_mode(mode)
         assert self.symbol
-
-        mainDeclNode = signode
+        # The caller of the domain added a desc_signature node.
+        # Always enable multiline:
+        signode['is_multiline'] = True
+        # Put each line in a desc_signature_line node.
+        mainDeclNode = addnodes.desc_signature_line()
+        mainDeclNode.sphinx_c_tagname = 'declarator'
+        mainDeclNode['add_permalink'] = not self.symbol.isRedeclaration
+        signode += mainDeclNode
 
         if self.objectType == 'member':
             pass