Patch to build ddar on BSD / OS X

ddar-bsd.patch

--- scan.c.orig	2011-04-28 08:28:05.000000000 +0100
+++ scan.c	2011-04-28 09:01:10.000000000 +0100
@@ -38,6 +38,14 @@
 #define likely(x) __builtin_expect(x, 1)
 #define unlikely(x) __builtin_expect(x, 0)
 
+#ifndef __linux__
+#define TEMP_FAILURE_RETRY(expr) \
+    ({ long int _res; \
+        do _res = (long int) (expr); \
+        while (_res == -1L && errno == EINTR); \
+        _res; })
+#endif
+
 struct scan_ctx {
     /* The main read buffer itself */
     unsigned char *buffer[3];
@@ -97,7 +105,9 @@
     int bytes_read;
 
     bytes_read = retry_read(scan, scan->io_destination, scan->buffer_size / 3);
+#ifdef  __linux__
     posix_fadvise(scan->fd, scan->source_offset, bytes_read, POSIX_FADV_DONTNEED);
+#endif
     scan->source_offset += bytes_read;
     scan->bytes_left += bytes_read;
 }
@@ -147,7 +157,9 @@
 	    longjmp(scan->jmp_env, 1);
     }
 
+#ifdef  __linux__
     posix_fadvise(scan->fd, scan->source_offset, bytes_read, POSIX_FADV_DONTNEED);
+#endif
     scan->source_offset += bytes_read;
     scan->bytes_left += bytes_read;
 }
--- setup.py.orig       2011-04-28 08:32:45.000000000 +0100
+++ setup.py    2011-04-28 08:33:31.000000000 +0100
@@ -12,7 +12,7 @@
       ext_modules=[ Extension('synctus._dds', ['scan.c', 'rabin.c',
                                            'synctus/ddsmodule.c'],
                               include_dirs=['.'],
-                              libraries=['rt']) ],
+                              ) ],
       install_requires=['protobuf'])
 
 # vim: set ts=8 sts=4 sw=4 ai et :
--- Makefile.orig       2011-04-28 09:27:25.000000000 +0100
+++ Makefile    2011-04-28 09:27:31.000000000 +0100
@@ -1,4 +1,4 @@
-pydist: ddar.1 synctus/ddar_pb2.py
+pydist: synctus/ddar_pb2.py
 
 sdist: pydist
        python setup.py sdist