diff -Naur cramfs-1.1/GNUmakefile cramfs-1.1.netbsd/GNUmakefile
--- cramfs-1.1/GNUmakefile	2002-02-23 01:52:41.000000000 +0100
+++ cramfs-1.1.netbsd/GNUmakefile	1970-01-01 01:00:00.000000000 +0100
@@ -1,12 +0,0 @@
-CC = gcc
-CFLAGS = -W -Wall -O2 -g
-CPPFLAGS = -I.
-LDLIBS = -lz
-PROGS = mkcramfs cramfsck
-
-all: $(PROGS)
-
-distclean clean:
-	rm -f $(PROGS)
-
-.PHONY: all clean
diff -Naur cramfs-1.1/Makefile cramfs-1.1.netbsd/Makefile
--- cramfs-1.1/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ cramfs-1.1.netbsd/Makefile	2002-02-23 01:52:41.000000000 +0100
@@ -0,0 +1,12 @@
+CC = gcc
+CFLAGS = -W -Wall -O2 -g
+CPPFLAGS = -I.
+LDLIBS = -lz
+PROGS = mkcramfs cramfsck
+
+all: $(PROGS)
+
+distclean clean:
+	rm -f $(PROGS)
+
+.PHONY: all clean
diff -Naur cramfs-1.1/cramfsck.c cramfs-1.1.netbsd/cramfsck.c
--- cramfs-1.1/cramfsck.c	2002-02-23 01:00:42.000000000 +0100
+++ cramfs-1.1.netbsd/cramfsck.c	2007-01-04 14:45:13.000000000 +0100
@@ -218,7 +218,7 @@
 
 	buf = mmap(NULL, super.size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
 	if (buf == MAP_FAILED) {
-		buf = mmap(NULL, super.size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+		buf = mmap(NULL, super.size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
 		if (buf != MAP_FAILED) {
 			lseek(fd, 0, SEEK_SET);
 			read(fd, buf, super.size);
diff -Naur cramfs-1.1/mkcramfs.c cramfs-1.1.netbsd/mkcramfs.c
--- cramfs-1.1/mkcramfs.c	2002-02-20 09:03:32.000000000 +0100
+++ cramfs-1.1.netbsd/mkcramfs.c	2007-01-04 14:47:54.000000000 +0100
@@ -71,6 +71,9 @@
 		  + (1 << CRAMFS_SIZE_WIDTH) - 1 /* filesize */ \
 		  + (1 << CRAMFS_SIZE_WIDTH) * 4 / PAGE_CACHE_SIZE /* block pointers */ )
 
+/* TODO find a way to define this portably */
+typedef off_t loff_t;
+
 static const char *progname = "mkcramfs";
 static unsigned int blksize = PAGE_CACHE_SIZE;
 static long total_blocks = 0, total_nodes = 1; /* pre-count the root node */
@@ -787,7 +790,7 @@
 	   RAM free.  If the reason is to be able to write to
 	   un-mmappable block devices, then we could try shared mmap
 	   and revert to anonymous mmap if the shared mmap fails. */
-	rom_image = mmap(NULL, fslen_ub?fslen_ub:1, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	rom_image = mmap(NULL, fslen_ub?fslen_ub:1, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
 
 	if (rom_image == MAP_FAILED) {
 		die(MKFS_ERROR, 1, "mmap failed");