From e516a5dffe902093af7c3c16c8ad6f950d4cd247 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Sun, 1 May 2022 14:18:27 +0930
Subject: [PATCH] external/Makefile: fix `submodcheck` for sudo make install
 and modern git.

We can't run refresh-submodules without a working git, either:

```
$ sudo make install
mkdir -p /usr/local/bin
mkdir -p /usr/local/libexec/c-lightning
mkdir -p /usr/local/libexec/c-lightning/plugins
mkdir -p /usr/local/share/man/man1
mkdir -p /usr/local/share/man/man5
mkdir -p /usr/local/share/man/man7
mkdir -p /usr/local/share/man/man8
mkdir -p /usr/local/share/doc/c-lightning
fatal: unsafe repository ('/home/rusty/lightning' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /home/rusty/lightning
Reinitializing submodules external/libsodium external/libwally-core external/gheap external/jsmn external/libbacktrace external/lnprototest ...
fatal: unsafe repository ('/home/rusty/lightning' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /home/rusty/lightning
fatal: unsafe repository ('/home/rusty/lightning' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /home/rusty/lightning
make: *** [external/Makefile:52: submodcheck] Error 128
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 external/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/external/Makefile b/external/Makefile
index 975d4d259..92e976092 100644
--- a/external/Makefile
+++ b/external/Makefile
@@ -49,8 +49,10 @@ endif
 EXTERNAL_LDLIBS := -L${TARGET_DIR} $(patsubst lib%.a,-l%,$(notdir $(EXTERNAL_LIBS)))
 
 submodcheck: $(FORCE)
+ifneq ($(VERSION),)
 	@tools/refresh-submodules.sh $(SUBMODULES)
 	@cd external/libwally-core && ../../tools/refresh-submodules.sh src/secp256k1
+endif
 
 $(EXTERNAL_HEADERS): submodcheck