Index: utils/ofhash/Makefile
==================================================================
--- utils/ofhash/Makefile
+++ utils/ofhash/Makefile
@@ -1,13 +1,21 @@
 include ../../extra.mk
 
 PROG = ofhash${PROG_SUFFIX}
 SRCS = OFHash.m
+DATA = lang/de.json		\
+       lang/languages.json
 
 include ../../buildsys.mk
+
+PACKAGE_NAME = ofhash
 
 ${PROG}: ${LIBOBJFW_DEP_LVL2}
 
-CPPFLAGS += -I../../src -I../../src/runtime -I../../src/exceptions -I../..
+CPPFLAGS += -I../../src					\
+	    -I../../src/runtime				\
+	    -I../../src/exceptions			\
+	    -I../..					\
+	    -DLANGUAGE_DIR=\"${datadir}/ofhash/lang\"
 LIBS := -L../../src -lobjfw ${LIBS}
 LD = ${OBJC}
 LDFLAGS += ${LDFLAGS_RPATH}

Index: utils/ofhash/OFHash.m
==================================================================
--- utils/ofhash/OFHash.m
+++ utils/ofhash/OFHash.m
@@ -25,10 +25,11 @@
 #import "OFSHA224Hash.h"
 #import "OFSHA256Hash.h"
 #import "OFSHA384Hash.h"
 #import "OFSHA512Hash.h"
 #import "OFStdIOStream.h"
+#import "OFLocalization.h"
 
 #import "OFOpenItemFailedException.h"
 #import "OFReadFailedException.h"
 
 @interface OFHash: OFObject
@@ -37,14 +38,14 @@
 OF_APPLICATION_DELEGATE(OFHash)
 
 static void
 help(void)
 {
-	[of_stderr writeFormat:
-	    @"Usage: %@ [md5|rmd160|sha1|sha224|sha256|sha384|sha512] "
-	    @"file1 [file2 ...]\n",
-	    [OFApplication programName]];
+	[of_stderr writeLine: OF_LOCALIZED(@"usage",
+	    @"Usage: %[prog] [md5|rmd160|sha1|sha224|sha256|sha384|sha512] "
+	    @"file1 [file2 ...]",
+	    @"prog", [OFApplication programName])];
 
 	[OFApplication terminateWithStatus: 1];
 }
 
 static id <OFCryptoHash>
@@ -74,10 +75,12 @@
 	OFArray OF_GENERIC(OFString*) *arguments = [OFApplication arguments];
 	id <OFCryptoHash> hash;
 	bool first = true;
 	int exitStatus = 0;
 
+	[OFLocalization addLanguageDirectory: @LANGUAGE_DIR];
+
 	if ([arguments count] < 2)
 		help();
 
 	if ((hash = hashForName([arguments firstObject])) == nil)
 		help();
@@ -100,13 +103,20 @@
 		else {
 			@try {
 				file = [OFFile fileWithPath: path
 						       mode: @"rb"];
 			} @catch (OFOpenItemFailedException *e) {
-				[of_stderr writeFormat:
-				    @"Failed to open file %@: %s\n",
-				    [e path], strerror([e errNo])];
+				OFString *error = [OFString
+				    stringWithCString: strerror([e errNo])
+					     encoding: [OFLocalization
+							   encoding]];
+
+				[of_stderr writeLine: OF_LOCALIZED(
+				    @"failed_to_open_file",
+				    @"Failed to open file %[file]: %[error]",
+				    @"file", [e path],
+				    @"error", error)];
 
 				exitStatus = 1;
 				goto outer_loop_end;
 			}
 		}
@@ -119,13 +129,20 @@
 
 			@try {
 				length = [file readIntoBuffer: buffer
 						       length: 1024];
 			} @catch (OFReadFailedException *e) {
-				[of_stderr writeFormat:
-				    @"Failed to read %@: %s\n",
-				    path, strerror([e errNo])];
+				OFString *error = [OFString
+				    stringWithCString: strerror([e errNo])
+					     encoding: [OFLocalization
+							   encoding]];
+
+				[of_stderr writeLine: OF_LOCALIZED(
+				    @"failed_to_read_file",
+				    @"Failed to read %[file]: %[error]",
+				    @"file", path,
+				    @"error", error)];
 
 				exitStatus = 1;
 				goto outer_loop_end;
 			}
 

ADDED   utils/ofhash/lang/de.json
Index: utils/ofhash/lang/de.json
==================================================================
--- utils/ofhash/lang/de.json
+++ utils/ofhash/lang/de.json
@@ -0,0 +1,8 @@
+{
+    "usage": [
+        "Benutzung: %[prog] [md5|rmd160|sha1|sha224|sha256|sha384|sha512] ",
+	"datei1 [datei2 ...]"
+    ],
+    "failed_to_open_file": "Fehler beim Öffnen der Datei %[file]: %[error]",
+    "failed_to_read_file": "Fehler beim Lesen der Datei %[file]: %[error]"
+}

ADDED   utils/ofhash/lang/languages.json
Index: utils/ofhash/lang/languages.json
==================================================================
--- utils/ofhash/lang/languages.json
+++ utils/ofhash/lang/languages.json
@@ -0,0 +1,8 @@
+{
+    "de": {
+        "": "de"
+    },
+    "german": {
+        "": "de"
+    }
+}