From 30396fe34392dfd150bd9bd9814394e01baf0e22 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Fri, 29 May 2020 21:35:01 +0100
Subject: [PATCH] nailing-cargo: Provide a dummy build.rs

Without this, cargo might do this:

    package `<crate> <version> (/home/....)` specifies that it links
    to `<some library>` but does not have a custom build script

When generating a lockfile it doesn't actually need to look at the
build.rs so an empty one will do fine to placate it.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 nailing-cargo | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/nailing-cargo b/nailing-cargo
index d6f0a5b..4cc9eac 100755
--- a/nailing-cargo
+++ b/nailing-cargo
@@ -547,10 +547,10 @@ ENDLK
 ENDCP
     $pre .= <<'ENDPRE';
         shift;
-        mkdir -p src; >src/lib.rs;
+        mkdir -p src; >src/lib.rs; >build.rs
 ENDPRE
     $post = <<'ENDPOST';
-        rm -r src Cargo.toml;
+        rm -r src Cargo.toml build.rs;
 ENDPOST
   }
   my $addpath = (cfg_uc qw(oot path_add)) //
-- 
2.30.2