diff --git a/Makefile b/Makefile
index 9d84c8d..3980dc9 100644
--- a/Makefile
+++ b/Makefile
@@ -282,7 +282,6 @@ PROGRAMS += git-imap-send$X
PROGRAMS += git-index-pack$X
PROGRAMS += git-merge-index$X
PROGRAMS += git-merge-tree$X
-PROGRAMS += git-mktag$X
PROGRAMS += git-mktree$X
PROGRAMS += git-pack-redundant$X
PROGRAMS += git-patch-id$X
@@ -510,6 +509,7 @@ BUILTIN_OBJS += builtin-merge-base.o
BUILTIN_OBJS += builtin-merge-file.o
BUILTIN_OBJS += builtin-merge-ours.o
BUILTIN_OBJS += builtin-merge-recursive.o
+BUILTIN_OBJS += builtin-mktag.o
BUILTIN_OBJS += builtin-mv.o
BUILTIN_OBJS += builtin-name-rev.o
BUILTIN_OBJS += builtin-pack-objects.o
diff --git a/mktag.c b/builtin-mktag.c
similarity index 98%
rename from mktag.c
rename to builtin-mktag.c
index a45a5e7..1596900 100644
--- a/mktag.c
+++ b/builtin-mktag.c
@@ -149,7 +149,7 @@ static int verify_tag(const char *buffer, size_t size)
#undef PD_FMT
-int main(int argc, char **argv)
+int cmd_mktag(int argc, const char **argv, const char *prefix)
{
struct strbuf buf;
unsigned char result_sha1[20];@@ -157,8 +157,6 @@ int main(int argc, char **argv)
if (argc != 1)
usage("git-mktag < signaturefile");
- setup_git_directory();
-
strbuf_init(&buf, 0);
if (strbuf_read(&buf, 0, 4096) < 0) {
die("could not read from stdin");diff --git a/builtin.h b/builtin.h
index 95126fd..a8d3a11 100644
--- a/builtin.h
+++ b/builtin.h
@@ -58,6 +58,7 @@ extern int cmd_merge_base(int argc, const char **argv, const char *prefix);
extern int cmd_merge_ours(int argc, const char **argv, const char *prefix);
extern int cmd_merge_file(int argc, const char **argv, const char *prefix);
extern int cmd_merge_recursive(int argc, const char **argv, const char *prefix);
+extern int cmd_mktag(int argc, const char **argv, const char *prefix);
extern int cmd_mv(int argc, const char **argv, const char *prefix);
extern int cmd_name_rev(int argc, const char **argv, const char *prefix);
extern int cmd_pack_objects(int argc, const char **argv, const char *prefix);
diff --git a/git.c b/git.c
index 89b431f..81aa31c 100644
--- a/git.c
+++ b/git.c
@@ -325,6 +325,7 @@ static void handle_internal_command(int argc, const char **argv)
{ "merge-ours", cmd_merge_ours, RUN_SETUP },
{ "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
{ "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
+ { "mktag", cmd_mktag, RUN_SETUP },
{ "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE },
{ "name-rev", cmd_name_rev, RUN_SETUP },
{ "pack-objects", cmd_pack_objects, RUN_SETUP },--
1.5.5.1.295.g4c42f