From 9b46e151b9fdaf5684618482e69ef4a307c0d47c Mon Sep 17 00:00:00 2001
From: annalee <150648636+a-n-n-a-l-e-e@users.noreply.github.com>
Date: Sun, 18 Feb 2024 19:54:21 +0000
Subject: [PATCH] darwin build fixes

---
 compat.h    | 14 ++++++++++++++
 dev.c       |  1 +
 error.c     |  1 +
 io.c        |  1 +
 mergebad.c  |  1 +
 recoverdm.c |  1 +
 utils.c     |  1 +
 utils.h     |  1 +
 8 files changed, 21 insertions(+)
 create mode 100644 src/compat.h

diff --git a/compat.h b/compat.h
new file mode 100644
index 0000000..181c8ea
--- /dev/null
+++ b/compat.h
@@ -0,0 +1,14 @@
+#pragma once
+#ifdef __APPLE__
+#include <unistd.h>
+_Static_assert(sizeof(off_t) == 8, "off_t must be 8 bytes");
+typedef off_t off64_t;
+#define stat64 stat
+#define lseek64 lseek
+#define open64 open
+#define POSIX_FADV_SEQUENTIAL 1
+static inline int posix_fadvise(int fd, off_t offset, off_t len, int advice)
+{
+    return 0;
+}
+#endif
diff --git a/dev.c b/dev.c
index c1ce748..ae3ce2c 100644
--- a/dev.c
+++ b/dev.c
@@ -18,6 +18,7 @@
 	#include <scsi/scsi_ioctl.h>
 	#include <linux/cdrom.h>
 #endif
+#include "compat.h"
 
 #include "dev.h"
 
diff --git a/error.c b/error.c
index d2f8acf..550e1af 100644
--- a/error.c
+++ b/error.c
@@ -4,6 +4,7 @@
 #include <stdlib.h>
 #include <sys/types.h>
 #include <signal.h>
+#include "compat.h"
 
 void error_exit(char *format, ...)
 {
diff --git a/io.c b/io.c
index 9d66534..e784d75 100644
--- a/io.c
+++ b/io.c
@@ -7,6 +7,7 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include "compat.h"
 
 #include "io.h"
 #include "error.h"
diff --git a/mergebad.c b/mergebad.c
index 34a6ef7..580c3bc 100644
--- a/mergebad.c
+++ b/mergebad.c
@@ -7,6 +7,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include "compat.h"
 
 #include "io.h"
 #include "dev.h"
diff --git a/recoverdm.c b/recoverdm.c
index 8b71ae1..5dddeb3 100644
--- a/recoverdm.c
+++ b/recoverdm.c
@@ -7,6 +7,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include "compat.h"
 
 #include "io.h"
 #include "dev.h"
diff --git a/utils.c b/utils.c
index 5791404..ee42a0a 100644
--- a/utils.c
+++ b/utils.c
@@ -7,6 +7,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include "compat.h"
 
 #include "io.h"
 #include "dev.h"
diff --git a/utils.h b/utils.h
index c749c2e..acb0888 100644
--- a/utils.h
+++ b/utils.h
@@ -1,3 +1,4 @@
+#include "compat.h"
 void * mymalloc(size_t size, char *what);
 void * myrealloc(void *oldp, size_t newsize, char *what);
 off64_t get_filesize(char *filename);
-- 
2.43.0