diff --git a/mk.sh b/mk.sh
index b290b58..b98cee9 100755
--- a/mk.sh
+++ b/mk.sh
@@ -70,8 +70,6 @@ done
 
 echo "--- resolving package dependencies ---"
 
-g++ "$SCRIPTDIR/util/depgraph.cpp" -o "$TCDIR/bin/depgraph"
-
 truncate -s 0 $DEPENDSLIST $PROVIDESLIST
 
 for pkg in $SCRIPTDIR/pkg/*; do
@@ -85,7 +83,8 @@ for pkg in $SCRIPTDIR/pkg/*; do
 	done
 done
 
-depgraph "$PROVIDESLIST" "$DEPENDSLIST" "$RELEASEPKG" > "$PACKAGELIST"
+pkg buildstrategy -p "$PROVIDESLIST" -d "$DEPENDSLIST" "$RELEASEPKG" \
+    > "$PACKAGELIST"
 cat "$PACKAGELIST"
 
 echo "--- downloading package files ---"
diff --git a/util/depgraph.cpp b/util/depgraph.cpp
deleted file mode 100644
index 5f524fb..0000000
--- a/util/depgraph.cpp
+++ /dev/null
@@ -1,169 +0,0 @@
-#include <sys/types.h>
-#include <string.h>
-#include <stdlib.h>
-#include <ctype.h>
-
-#include <unordered_set>
-#include <iostream>
-#include <map>
-
-struct meta_pkg_t {
-	meta_pkg_t(const char *pkgname) : name(pkgname), marked(false) {
-	}
-
-	void markPackage() {
-		if (!marked) {
-			marked = true;
-
-			for (auto &dep : depends)
-				dep->markPackage();
-		}
-	}
-
-	std::string name;
-	bool marked;
-
-	std::unordered_set<meta_pkg_t *> depends;
-};
-
-
-static std::map<std::string, meta_pkg_t *> package_by_name;
-static std::map<std::string, meta_pkg_t *> package_provides;
-
-
-static void handle_provides(const char *meta, const char *subpkg)
-{
-	meta_pkg_t *pkg;
-
-	if (package_by_name.find(meta) == package_by_name.end())
-		package_by_name[meta] = new meta_pkg_t(meta);
-
-	package_provides[subpkg] = package_by_name[meta];
-}
-
-static void handle_depends(const char *meta, const char *dependency)
-{
-	auto it = package_provides.find(dependency);
-
-	if (it == package_provides.end()) {
-		std::cerr << "nothing provides '" << dependency;
-		std::cerr << "', required by '" << meta << "'" << std::endl;
-		exit(EXIT_FAILURE);
-	}
-
-	package_by_name[meta]->depends.insert(it->second);
-}
-
-
-typedef void (*line_handler_t)(const char *lhs, const char *rhs);
-
-static int foreach_line(const char *filename, line_handler_t cb)
-{
-	FILE *f = fopen(filename, "r");
-
-	for (;;) {
-		char *line = NULL;
-		size_t n = 0;
-		ssize_t ret;
-
-		errno = 0;
-		ret = getline(&line, &n, f);
-
-		if (ret < 0) {
-			if (errno == 0) {
-				free(line);
-				break;
-			}
-			perror(filename);
-			free(line);
-			fclose(f);
-			return -1;
-		}
-
-		char *rhs = strchr(line, ',');
-		if (rhs == NULL) {
-			free(line);
-			continue;
-		}
-
-		*(rhs++) = '\0';
-
-		char *ptr = rhs;
-		while (*ptr != '\0' && !isspace(*ptr))
-			++ptr;
-		*ptr = '\0';
-
-		cb(line, rhs);
-		free(line);
-	}
-
-	fclose(f);
-	return 0;
-}
-
-int main(int argc, char **argv)
-{
-	if (argc < 4) {
-		std::cerr << "usage: depgraph <providerlist> <dependencylist>";
-		std::cerr << " PACKAGES..." << std::endl;
-		return EXIT_FAILURE;
-	}
-
-	foreach_line(argv[1], handle_provides);
-	foreach_line(argv[2], handle_depends);
-
-	// recursively mark packages that we actually need to build
-	for (int i = 3; i < argc; ++i) {
-		auto it = package_provides.find(argv[i]);
-
-		if (it == package_provides.end()) {
-			std::cerr << "nothing provides '" << argv[i] << "'";
-			std::cerr << std::endl;
-			return EXIT_FAILURE;
-		}
-
-		it->second->markPackage();
-	}
-
-	// assemble a set of only those packages
-	std::unordered_set<meta_pkg_t *> pkglist;
-
-	for (auto &it : package_by_name) {
-		if (it.second->marked) {
-			pkglist.insert(it.second);
-		} else {
-			delete it.second;
-		}
-	}
-
-	package_provides.clear();
-	package_by_name.clear();
-
-	// output set in topological order
-	while (pkglist.size() > 0) {
-		meta_pkg_t *pkg = NULL;
-
-		for (auto &it : pkglist) {
-			if (it->depends.size() == 0) {
-				pkg = it;
-				break;
-			}
-		}
-
-		if (pkg == NULL) {
-			std::cerr << "dependency graph is cyclic!";
-			std::cerr << std::endl;
-			return EXIT_FAILURE;
-		}
-
-		for (auto &it : pkglist)
-			it->depends.erase(pkg);
-
-		pkglist.erase(pkg);
-
-		std::cout << pkg->name << std::endl;
-		delete pkg;
-	}
-
-	return EXIT_SUCCESS;
-}