thodg/libgit2

diff --git a/include/git2/merge.h b/include/git2/merge.h
index e20025b..15bed2a 100644
--- a/include/git2/merge.h
+++ b/include/git2/merge.h
@@ -274,32 +274,6 @@ GIT_EXTERN(int) git_merge_status(
 	const git_merge_head **their_heads,
 	size_t their_heads_len);
 
-typedef struct {
-	unsigned int version;
-
-	/** Options for handling the merges of individual files. */
-	git_merge_tree_opts merge_tree_opts;
-
-	/** Options for writing the merge result to the working directory. */
-	git_checkout_options checkout_opts;
-} git_merge_opts;
-
-#define GIT_MERGE_OPTS_VERSION 1
-#define GIT_MERGE_OPTS_INIT {GIT_MERGE_OPTS_VERSION, GIT_MERGE_TREE_OPTS_INIT, GIT_CHECKOUT_OPTIONS_INIT}
-
-/**
- * Initializes a `git_merge_opts` with default values. Equivalent to creating
- * an instance with GIT_MERGE_OPTS_INIT.
- *
- * @param opts the `git_merge_opts` instance to initialize.
- * @param version the version of the struct; you should pass
- *        `GIT_MERGE_OPTS_VERSION` here.
- * @return Zero on success; -1 on failure.
- */
-GIT_EXTERN(int) git_merge_init_opts(
-	git_merge_opts* opts,
-	int version);
-
 /**
  * Find a merge base between two commits
  *
@@ -522,7 +496,8 @@ GIT_EXTERN(int) git_merge_commits(
  * @param repo the repository to merge
  * @param merge_heads the heads to merge into
  * @param merge_heads_len the number of heads to merge
- * @param opts merge options
+ * @param checkout_opts merge options
+ * @param checkout_opts checkout options
  * @return 0 on success or error code
  */
 GIT_EXTERN(int) git_merge(
@@ -530,7 +505,8 @@ GIT_EXTERN(int) git_merge(
 	git_repository *repo,
 	const git_merge_head **their_heads,
 	size_t their_heads_len,
-	const git_merge_opts *opts);
+	const git_merge_tree_opts *merge_opts,
+	const git_checkout_options *checkout_opts);
 
 /**
  * Returns true if a merge is "up-to-date", meaning that the commit(s) 
diff --git a/src/merge.c b/src/merge.c
index b7f043a..12e4a3b 100644
--- a/src/merge.c
+++ b/src/merge.c
@@ -2168,10 +2168,10 @@ const char *merge_their_label(const char *branchname)
 	return slash+1;
 }
 
-static int merge_normalize_opts(
+static int merge_normalize_checkout_opts(
 	git_repository *repo,
-	git_merge_opts *opts,
-	const git_merge_opts *given,
+	git_checkout_options *checkout_opts,
+	const git_checkout_options *given_checkout_opts,
 	const git_merge_head *ancestor_head,
 	const git_merge_head *our_head,
 	size_t their_heads_len,
@@ -2183,38 +2183,38 @@ static int merge_normalize_opts(
 
 	GIT_UNUSED(repo);
 
-	if (given != NULL)
-		memcpy(opts, given, sizeof(git_merge_opts));
+	if (given_checkout_opts != NULL)
+		memcpy(checkout_opts, given_checkout_opts, sizeof(git_checkout_options));
 	else {
-		git_merge_opts default_opts = GIT_MERGE_OPTS_INIT;
-		memcpy(opts, &default_opts, sizeof(git_merge_opts));
+		git_checkout_options default_checkout_opts = GIT_CHECKOUT_OPTIONS_INIT;
+		memcpy(checkout_opts, &default_checkout_opts, sizeof(git_checkout_options));
 	}
 
-	if (!opts->checkout_opts.checkout_strategy)
-		opts->checkout_opts.checkout_strategy = default_checkout_strategy;
+	if (!checkout_opts->checkout_strategy)
+		checkout_opts->checkout_strategy = default_checkout_strategy;
 
 	/* TODO: for multiple ancestors in merge-recursive, this is "merged common ancestors" */
-	if (!opts->checkout_opts.ancestor_label) {
+	if (!checkout_opts->ancestor_label) {
 		if (ancestor_head && ancestor_head->commit)
-			opts->checkout_opts.ancestor_label = git_commit_summary(ancestor_head->commit);
+			checkout_opts->ancestor_label = git_commit_summary(ancestor_head->commit);
 		else
-			opts->checkout_opts.ancestor_label = "ancestor";
+			checkout_opts->ancestor_label = "ancestor";
 	}
 
-	if (!opts->checkout_opts.our_label) {
+	if (!checkout_opts->our_label) {
 		if (our_head && our_head->ref_name)
-			opts->checkout_opts.our_label = our_head->ref_name;
+			checkout_opts->our_label = our_head->ref_name;
 		else
-			opts->checkout_opts.our_label = "ours";
+			checkout_opts->our_label = "ours";
 	}
 
-	if (!opts->checkout_opts.their_label) {
+	if (!checkout_opts->their_label) {
 		if (their_heads_len == 1 && their_heads[0]->ref_name)
-			opts->checkout_opts.their_label = merge_their_label(their_heads[0]->ref_name);
+			checkout_opts->their_label = merge_their_label(their_heads[0]->ref_name);
 		else if (their_heads_len == 1)
-			opts->checkout_opts.their_label = their_heads[0]->oid_str;
+			checkout_opts->their_label = their_heads[0]->oid_str;
 		else
-			opts->checkout_opts.their_label = "theirs";
+			checkout_opts->their_label = "theirs";
 	}
 
 	return error;
@@ -2552,11 +2552,12 @@ int git_merge(
 	git_repository *repo,
 	const git_merge_head **their_heads,
 	size_t their_heads_len,
-	const git_merge_opts *given_opts)
+	const git_merge_tree_opts *merge_opts,
+	const git_checkout_options *given_checkout_opts)
 {
 	git_merge_result *result;
-	git_merge_opts opts;
 	git_reference *our_ref = NULL;
+	git_checkout_options checkout_opts;
 	git_merge_head *ancestor_head = NULL, *our_head = NULL;
 	git_tree *ancestor_tree = NULL, *our_tree = NULL, **their_trees = NULL;
 	git_index *index_new = NULL, *index_repo = NULL;
@@ -2567,8 +2568,6 @@ int git_merge(
 
 	*out = NULL;
 
-	GITERR_CHECK_VERSION(given_opts, GIT_MERGE_OPTS_VERSION, "git_merge_opts");
-
 	if (their_heads_len != 1) {
 		giterr_set(GITERR_MERGE, "Can only merge a single branch");
 		return -1;
@@ -2583,7 +2582,8 @@ int git_merge(
 	if ((error = merge_heads(&ancestor_head, &our_head, repo, their_heads, their_heads_len)) < 0)
 		goto on_error;
 
-	if ((error = merge_normalize_opts(repo, &opts, given_opts, ancestor_head, our_head, their_heads_len, their_heads)) < 0)
+	if ((error = merge_normalize_checkout_opts(repo, &checkout_opts, given_checkout_opts,
+		ancestor_head, our_head, their_heads_len, their_heads)) < 0)
 		goto on_error;
 
 	/* Write the merge files to the repository. */
@@ -2604,10 +2604,10 @@ int git_merge(
 
 	/* TODO: recursive, octopus, etc... */
 
-	if ((error = git_merge_trees(&index_new, repo, ancestor_tree, our_tree, their_trees[0], &opts.merge_tree_opts)) < 0 ||
+	if ((error = git_merge_trees(&index_new, repo, ancestor_tree, our_tree, their_trees[0], merge_opts)) < 0 ||
 		(error = git_merge__indexes(repo, index_new)) < 0 ||
 		(error = git_repository_index(&index_repo, repo)) < 0 ||
-		(error = git_checkout_index(repo, index_repo, &opts.checkout_opts)) < 0)
+		(error = git_checkout_index(repo, index_repo, &checkout_opts)) < 0)
 		goto on_error;
 
 	result->index = index_new;
@@ -2779,18 +2779,6 @@ void git_merge_head_free(git_merge_head *head)
 	git__free(head);
 }
 
-int git_merge_init_opts(git_merge_opts* opts, int version)
-{
-	if (version != GIT_MERGE_OPTS_VERSION) {
-		giterr_set(GITERR_INVALID, "Invalid version %d for git_merge_opts", version);
-		return -1;
-	} else {
-		git_merge_opts o = GIT_MERGE_OPTS_INIT;
-		memcpy(opts, &o, sizeof(o));
-		return 0;
-	}
-}
-
 int git_merge_tree_init_opts(git_merge_tree_opts* opts, int version)
 {
 	if (version != GIT_MERGE_TREE_OPTS_VERSION) {
diff --git a/tests/merge/merge_helpers.c b/tests/merge/merge_helpers.c
index 14a30b2..e3c2b9e 100644
--- a/tests/merge/merge_helpers.c
+++ b/tests/merge/merge_helpers.c
@@ -79,7 +79,9 @@ int merge_commits_from_branches(
 	return 0;
 }
 
-int merge_branches(git_merge_result **result, git_repository *repo, const char *ours_branch, const char *theirs_branch, git_merge_opts *opts)
+int merge_branches(git_merge_result **result, git_repository *repo,
+	const char *ours_branch, const char *theirs_branch,
+	git_merge_tree_opts *merge_opts, git_checkout_options *checkout_opts)
 {
 	git_reference *head_ref, *theirs_ref;
 	git_merge_head *theirs_head;
@@ -93,7 +95,7 @@ int merge_branches(git_merge_result **result, git_repository *repo, const char *
 	cl_git_pass(git_reference_lookup(&theirs_ref, repo, theirs_branch));
 	cl_git_pass(git_merge_head_from_ref(&theirs_head, repo, theirs_ref));
 
-	cl_git_pass(git_merge(result, repo, (const git_merge_head **)&theirs_head, 1, opts));
+	cl_git_pass(git_merge(result, repo, (const git_merge_head **)&theirs_head, 1, merge_opts, checkout_opts));
 
 	git_reference_free(head_ref);
 	git_reference_free(theirs_ref);
diff --git a/tests/merge/merge_helpers.h b/tests/merge/merge_helpers.h
index 63d1cb7..e5dc34b 100644
--- a/tests/merge/merge_helpers.h
+++ b/tests/merge/merge_helpers.h
@@ -93,7 +93,8 @@ int merge_commits_from_branches(
 	git_merge_tree_opts *opts);
 
 int merge_branches(git_merge_result **result, git_repository *repo,
-	const char *ours_branch, const char *theirs_branch, git_merge_opts *opts);
+	const char *ours_branch, const char *theirs_branch,
+	git_merge_tree_opts *merge_opts, git_checkout_options *checkout_opts);
 
 int merge_test_diff_list(git_merge_diff_list *diff_list, const struct merge_index_entry expected[], size_t expected_len);
 
diff --git a/tests/merge/workdir/dirty.c b/tests/merge/workdir/dirty.c
index a77f9b2..61b83a6 100644
--- a/tests/merge/workdir/dirty.c
+++ b/tests/merge/workdir/dirty.c
@@ -90,15 +90,16 @@ static int merge_branch(git_merge_result **result, int merge_file_favor, int che
 {
 	git_oid their_oids[1];
 	git_merge_head *their_heads[1];
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+	git_merge_tree_opts merge_opts = GIT_MERGE_TREE_OPTS_INIT;
+	git_checkout_options checkout_opts = GIT_CHECKOUT_OPTIONS_INIT;
 	int error;
 
 	cl_git_pass(git_oid_fromstr(&their_oids[0], MERGE_BRANCH_OID));
 	cl_git_pass(git_merge_head_from_id(&their_heads[0], repo, &their_oids[0]));
 
-	opts.merge_tree_opts.file_favor = merge_file_favor;
-	opts.checkout_opts.checkout_strategy = checkout_strategy;
-	error = git_merge(result, repo, (const git_merge_head **)their_heads, 1, &opts);
+	merge_opts.file_favor = merge_file_favor;
+	checkout_opts.checkout_strategy = checkout_strategy;
+	error = git_merge(result, repo, (const git_merge_head **)their_heads, 1, &merge_opts, &checkout_opts);
 
 	git_merge_head_free(their_heads[0]);
 
diff --git a/tests/merge/workdir/renames.c b/tests/merge/workdir/renames.c
index 2774772..14308ef 100644
--- a/tests/merge/workdir/renames.c
+++ b/tests/merge/workdir/renames.c
@@ -35,7 +35,7 @@ void test_merge_workdir_renames__cleanup(void)
 void test_merge_workdir_renames__renames(void)
 {
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+	git_merge_tree_opts merge_opts = GIT_MERGE_TREE_OPTS_INIT;
 
 	struct merge_index_entry merge_index_entries[] = {
 		{ 0100644, "68c6c84b091926c7d90aa6a79b2bc3bb6adccd8e", 0, "0a-no-change.txt" },
@@ -64,10 +64,10 @@ void test_merge_workdir_renames__renames(void)
 		{ 0100644, "b69fe837e4cecfd4c9a40cdca7c138468687df07", 0, "7-both-renamed.txt~rename_conflict_theirs" },
 	};
 
-	opts.merge_tree_opts.flags |= GIT_MERGE_TREE_FIND_RENAMES;
-	opts.merge_tree_opts.rename_threshold = 50;
+	merge_opts.flags |= GIT_MERGE_TREE_FIND_RENAMES;
+	merge_opts.rename_threshold = 50;
 
-	cl_git_pass(merge_branches(&result, repo, GIT_REFS_HEADS_DIR BRANCH_RENAME_OURS, GIT_REFS_HEADS_DIR BRANCH_RENAME_THEIRS, &opts));
+	cl_git_pass(merge_branches(&result, repo, GIT_REFS_HEADS_DIR BRANCH_RENAME_OURS, GIT_REFS_HEADS_DIR BRANCH_RENAME_THEIRS, &merge_opts, NULL));
 	cl_assert(merge_test_workdir(repo, merge_index_entries, 24));
 
 	git_merge_result_free(result);
@@ -77,7 +77,8 @@ void test_merge_workdir_renames__ours(void)
 {
 	git_index *index;
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+	git_merge_tree_opts merge_opts = GIT_MERGE_TREE_OPTS_INIT;
+	git_checkout_options checkout_opts = GIT_CHECKOUT_OPTIONS_INIT;
 
 	struct merge_index_entry merge_index_entries[] = {
 		{ 0100644, "68c6c84b091926c7d90aa6a79b2bc3bb6adccd8e", 0, "0a-no-change.txt" },
@@ -102,11 +103,11 @@ void test_merge_workdir_renames__ours(void)
 		{ 0100644, "b42712cfe99a1a500b2a51fe984e0b8a7702ba11", 0, "7-both-renamed.txt" },
 	};
 
-	opts.merge_tree_opts.flags |= GIT_MERGE_TREE_FIND_RENAMES;
-	opts.merge_tree_opts.rename_threshold = 50;
-	opts.checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_USE_OURS;
+	merge_opts.flags |= GIT_MERGE_TREE_FIND_RENAMES;
+	merge_opts.rename_threshold = 50;
+	checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE | GIT_CHECKOUT_USE_OURS;
 
-	cl_git_pass(merge_branches(&result, repo, GIT_REFS_HEADS_DIR BRANCH_RENAME_OURS, GIT_REFS_HEADS_DIR BRANCH_RENAME_THEIRS, &opts));
+	cl_git_pass(merge_branches(&result, repo, GIT_REFS_HEADS_DIR BRANCH_RENAME_OURS, GIT_REFS_HEADS_DIR BRANCH_RENAME_THEIRS, &merge_opts, &checkout_opts));
 	cl_git_pass(git_repository_index(&index, repo));
 	cl_git_pass(git_index_write(index));
 	cl_assert(merge_test_workdir(repo, merge_index_entries, 20));
@@ -118,7 +119,7 @@ void test_merge_workdir_renames__ours(void)
 void test_merge_workdir_renames__similar(void)
 {
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+	git_merge_tree_opts merge_opts = GIT_MERGE_TREE_OPTS_INIT;
 
 	/*
 	 * Note: this differs slightly from the core git merge result - there, 4a is
@@ -152,10 +153,10 @@ void test_merge_workdir_renames__similar(void)
 		{ 0100644, "b69fe837e4cecfd4c9a40cdca7c138468687df07", 0, "7-both-renamed.txt~rename_conflict_theirs" },
 	};
 
-	opts.merge_tree_opts.flags |= GIT_MERGE_TREE_FIND_RENAMES;
-	opts.merge_tree_opts.rename_threshold = 50;
+	merge_opts.flags |= GIT_MERGE_TREE_FIND_RENAMES;
+	merge_opts.rename_threshold = 50;
 
-	cl_git_pass(merge_branches(&result, repo, GIT_REFS_HEADS_DIR BRANCH_RENAME_OURS, GIT_REFS_HEADS_DIR BRANCH_RENAME_THEIRS, &opts));
+	cl_git_pass(merge_branches(&result, repo, GIT_REFS_HEADS_DIR BRANCH_RENAME_OURS, GIT_REFS_HEADS_DIR BRANCH_RENAME_THEIRS, &merge_opts, NULL));
 	cl_assert(merge_test_workdir(repo, merge_index_entries, 24));
 
 	git_merge_result_free(result);
diff --git a/tests/merge/workdir/setup.c b/tests/merge/workdir/setup.c
index d23e454..7085995 100644
--- a/tests/merge/workdir/setup.c
+++ b/tests/merge/workdir/setup.c
@@ -970,7 +970,6 @@ void test_merge_workdir_setup__retained_after_success(void)
 	git_oid our_oid;
 	git_reference *octo1_ref;
 	git_merge_head *our_head, *their_heads[1];
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
 	git_merge_result *result;
 
 	cl_git_pass(git_oid_fromstr(&our_oid, ORIG_HEAD));
@@ -980,7 +979,7 @@ void test_merge_workdir_setup__retained_after_success(void)
 
 	cl_git_pass(git_merge_head_from_ref(&their_heads[0], repo, octo1_ref));
 
-	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)&their_heads[0], 1, &opts));
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)&their_heads[0], 1, NULL, NULL));
 
 	cl_assert(test_file_contents(GIT_MERGE_HEAD_FILE, OCTO1_OID "\n"));
 	cl_assert(test_file_contents(GIT_ORIG_HEAD_FILE, ORIG_HEAD "\n"));
@@ -1000,7 +999,6 @@ void test_merge_workdir_setup__removed_after_failure(void)
 	git_reference *octo1_ref;
 	git_merge_head *our_head, *their_heads[1];
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
 
 	cl_git_pass(git_oid_fromstr(&our_oid, ORIG_HEAD));
 	cl_git_pass(git_merge_head_from_id(&our_head, repo, &our_oid));
@@ -1012,7 +1010,7 @@ void test_merge_workdir_setup__removed_after_failure(void)
 		"Conflicting file!\n\nMerge will fail!\n");
 
 	cl_git_fail(git_merge(
-		&result, repo, (const git_merge_head **)&their_heads[0], 1, &opts));
+		&result, repo, (const git_merge_head **)&their_heads[0], 1, NULL, NULL));
 
 	cl_assert(!git_path_exists("merge-resolve/" GIT_MERGE_HEAD_FILE));
 	cl_assert(!git_path_exists("merge-resolve/" GIT_ORIG_HEAD_FILE));
diff --git a/tests/merge/workdir/simple.c b/tests/merge/workdir/simple.c
index 07c60c5..e60b2db 100644
--- a/tests/merge/workdir/simple.c
+++ b/tests/merge/workdir/simple.c
@@ -97,14 +97,15 @@ static git_merge_result *merge_simple_branch(int merge_file_favor, int checkout_
 	git_oid their_oids[1];
 	git_merge_head *their_heads[1];
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+	git_merge_tree_opts merge_opts = GIT_MERGE_TREE_OPTS_INIT;
+	git_checkout_options checkout_opts = GIT_CHECKOUT_OPTIONS_INIT;
 
 	cl_git_pass(git_oid_fromstr(&their_oids[0], THEIRS_SIMPLE_OID));
 	cl_git_pass(git_merge_head_from_id(&their_heads[0], repo, &their_oids[0]));
 
-	opts.merge_tree_opts.file_favor = merge_file_favor;
-	opts.checkout_opts.checkout_strategy = checkout_strategy;
-	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &opts));
+	merge_opts.file_favor = merge_file_favor;
+	checkout_opts.checkout_strategy = checkout_strategy;
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &merge_opts, &checkout_opts));
 
 	git_merge_head_free(their_heads[0]);
 
@@ -522,7 +523,7 @@ void test_merge_workdir_simple__directory_file(void)
 	git_oid their_oids[1], head_commit_id;
 	git_merge_head *their_heads[1];
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+	git_merge_tree_opts merge_opts = GIT_MERGE_TREE_OPTS_INIT;
 	git_commit *head_commit;
 
 	struct merge_index_entry merge_index_entries[] = {
@@ -556,8 +557,8 @@ void test_merge_workdir_simple__directory_file(void)
 	cl_git_pass(git_oid_fromstr(&their_oids[0], THEIRS_DIRECTORY_FILE));
 	cl_git_pass(git_merge_head_from_id(&their_heads[0], repo, &their_oids[0]));
 
-	opts.merge_tree_opts.file_favor = 0;
-	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &opts));
+	merge_opts.file_favor = 0;
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &merge_opts, NULL));
 
 	cl_assert(merge_test_index(repo_index, merge_index_entries, 20));
 
@@ -572,7 +573,7 @@ void test_merge_workdir_simple__unrelated(void)
 	git_oid their_oids[1];
 	git_merge_head *their_heads[1];
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+	git_merge_tree_opts merge_opts = GIT_MERGE_TREE_OPTS_INIT;
 
 	struct merge_index_entry merge_index_entries[] = {
 		{ 0100644, "233c0919c998ed110a4b6ff36f353aec8b713487", 0, "added-in-master.txt" },
@@ -589,8 +590,8 @@ void test_merge_workdir_simple__unrelated(void)
 	cl_git_pass(git_oid_fromstr(&their_oids[0], THEIRS_UNRELATED_PARENT));
 	cl_git_pass(git_merge_head_from_id(&their_heads[0], repo, &their_oids[0]));
 
-	opts.merge_tree_opts.file_favor = 0;
-	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &opts));
+	merge_opts.file_favor = 0;
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &merge_opts, NULL));
 
 	cl_assert(merge_test_index(repo_index, merge_index_entries, 9));
 
@@ -603,7 +604,7 @@ void test_merge_workdir_simple__unrelated_with_conflicts(void)
 	git_oid their_oids[1];
 	git_merge_head *their_heads[1];
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+	git_merge_tree_opts merge_opts = GIT_MERGE_TREE_OPTS_INIT;
 
 	struct merge_index_entry merge_index_entries[] = {
 		{ 0100644, "233c0919c998ed110a4b6ff36f353aec8b713487", 0, "added-in-master.txt" },
@@ -622,8 +623,8 @@ void test_merge_workdir_simple__unrelated_with_conflicts(void)
 	cl_git_pass(git_oid_fromstr(&their_oids[0], THEIRS_UNRELATED_OID));
 	cl_git_pass(git_merge_head_from_id(&their_heads[0], repo, &their_oids[0]));
 
-	opts.merge_tree_opts.file_favor = 0;
-	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &opts));
+	merge_opts.file_favor = 0;
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &merge_opts, NULL));
 
 	cl_assert(merge_test_index(repo_index, merge_index_entries, 11));
 
@@ -638,7 +639,6 @@ void test_merge_workdir_simple__binary(void)
 	git_merge_head *their_head;
 	git_merge_result *result;
 	const git_index_entry *binary_entry;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
 
 	struct merge_index_entry merge_index_entries[] = {
 		{ 0100644, "1c51d885170f57a0c4e8c69ff6363d91a5b51f85", 1, "binary" },
@@ -654,7 +654,7 @@ void test_merge_workdir_simple__binary(void)
 
 	cl_git_pass(git_merge_head_from_id(&their_head, repo, &their_oid));
 
-	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)&their_head, 1, &opts));
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)&their_head, 1, NULL, NULL));
 
 	cl_assert(merge_test_index(repo_index, merge_index_entries, 3));
 
diff --git a/tests/merge/workdir/submodules.c b/tests/merge/workdir/submodules.c
index 42451bd..296f30d 100644
--- a/tests/merge/workdir/submodules.c
+++ b/tests/merge/workdir/submodules.c
@@ -32,7 +32,6 @@ void test_merge_workdir_submodules__automerge(void)
 	git_commit *our_commit;
 	git_merge_head *their_head;
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
 	git_index *index;
 
 	struct merge_index_entry merge_index_entries[] = {
@@ -51,7 +50,7 @@ void test_merge_workdir_submodules__automerge(void)
 	cl_git_pass(git_reference_lookup(&their_ref, repo, "refs/heads/" SUBMODULE_OTHER_BRANCH));
 	cl_git_pass(git_merge_head_from_ref(&their_head, repo, their_ref));
 
-	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)&their_head, 1, &opts));
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)&their_head, 1, NULL, NULL));
 
 	cl_git_pass(git_repository_index(&index, repo));
 	cl_assert(merge_test_index(index, merge_index_entries, 6));
@@ -70,7 +69,6 @@ void test_merge_workdir_submodules__take_changed(void)
 	git_commit *our_commit;
 	git_merge_head *their_head;
 	git_merge_result *result;
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
 	git_index *index;
 
 	struct merge_index_entry merge_index_entries[] = {
@@ -87,7 +85,7 @@ void test_merge_workdir_submodules__take_changed(void)
 	cl_git_pass(git_reference_lookup(&their_ref, repo, "refs/heads/" SUBMODULE_OTHER2_BRANCH));
 	cl_git_pass(git_merge_head_from_ref(&their_head, repo, their_ref));
 
-	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)&their_head, 1, &opts));
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)&their_head, 1, NULL, NULL));
 
 	cl_git_pass(git_repository_index(&index, repo));
 	cl_assert(merge_test_index(index, merge_index_entries, 4));
diff --git a/tests/merge/workdir/trivial.c b/tests/merge/workdir/trivial.c
index 8b0d328..ffbb56c 100644
--- a/tests/merge/workdir/trivial.c
+++ b/tests/merge/workdir/trivial.c
@@ -34,7 +34,6 @@ static int merge_trivial(const char *ours, const char *theirs)
 	git_checkout_options checkout_opts = GIT_CHECKOUT_OPTIONS_INIT;
 	git_reference *our_ref, *their_ref;
 	git_merge_head *their_heads[1];
-	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
 	git_merge_result *result;
 
 	checkout_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
@@ -49,7 +48,7 @@ static int merge_trivial(const char *ours, const char *theirs)
 	cl_git_pass(git_reference_lookup(&their_ref, repo, branch_buf.ptr));
 	cl_git_pass(git_merge_head_from_ref(&their_heads[0], repo, their_ref));
 
-	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &opts));
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, NULL, NULL));
 
 	git_buf_free(&branch_buf);
 	git_reference_free(our_ref);
diff --git a/tests/structinit/structinit.c b/tests/structinit/structinit.c
index 61fe8c7..fc44898 100644
--- a/tests/structinit/structinit.c
+++ b/tests/structinit/structinit.c
@@ -80,11 +80,6 @@ void test_structinit_structinit__compare(void)
 		git_merge_tree_opts, GIT_MERGE_TREE_OPTS_VERSION, \
 		GIT_MERGE_TREE_OPTS_INIT, git_merge_tree_init_opts);
 
-	/* merge */
-	CHECK_MACRO_FUNC_INIT_EQUAL( \
-		git_merge_opts, GIT_MERGE_OPTS_VERSION, \
-		GIT_MERGE_OPTS_INIT, git_merge_init_opts);
-
 	/* push */
 	CHECK_MACRO_FUNC_INIT_EQUAL( \
 		git_push_options, GIT_PUSH_OPTIONS_VERSION, \