From ea24b44b54ce69c459d1954c99d597cf18b66ab2 Mon Sep 17 00:00:00 2001
From: vulcandth <vulcandth@gmail.com>
Date: Fri, 13 May 2022 18:07:23 +0000
Subject: [PATCH] MD5 to SHA1

---
 Makefile  | 8 ++++++--
 README.md | 2 +-
 rom.md5   | 1 -
 rom.sha1  | 1 +
 4 files changed, 8 insertions(+), 4 deletions(-)
 delete mode 100644 rom.md5
 create mode 100644 rom.sha1

diff --git a/Makefile b/Makefile
index f1a100ed..6eb05b58 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,11 @@
 ROM := pokepinball.gbc
 OBJS := main.o wram.o sram.o
 
-MD5 := md5sum -c
+ifeq (,$(shell which sha1sum))
+SHA1 := shasum
+else
+SHA1 := sha1sum
+endif
 
 all: $(ROM) compare
 
@@ -26,7 +30,7 @@ $(ROM): $(OBJS) contents/contents.link
 
 # For contributors to make sure a change didn't affect the contents of the rom.
 compare: $(ROM)
-	@$(MD5) rom.md5
+	@$(SHA1) -c rom.sha1
 
 tools:
 	$(MAKE) -C tools
diff --git a/README.md b/README.md
index 50058bd5..9ef2c38c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ This is a disassembly of Pokémon Pinball (Game Boy Color).
 
 It builds the following rom:
 
-* Pokemon Pinball (U) [C][!].gb  `md5: fbe20570c2e52c937a9395024069ba3c`
+* Pokemon Pinball (U) [C][!].gb  `sha1: 9402014d14969432142abfde728c6f1a10ee4dac`
 
 To set up the repository, see [**INSTALL.md**](INSTALL.md).
 
diff --git a/rom.md5 b/rom.md5
deleted file mode 100644
index ec8f61d9..00000000
--- a/rom.md5
+++ /dev/null
@@ -1 +0,0 @@
-fbe20570c2e52c937a9395024069ba3c  pokepinball.gbc
diff --git a/rom.sha1 b/rom.sha1
new file mode 100644
index 00000000..1746859b
--- /dev/null
+++ b/rom.sha1
@@ -0,0 +1 @@
+9402014d14969432142abfde728c6f1a10ee4dac *pokepinball.gbc