5 files changed, 4 insertions, 10 deletions
diff --git a/lib/fstree/Makemodule.am b/lib/fstree/Makemodule.am
index fec63b4..a72b820 100644
--- a/lib/fstree/Makemodule.am
+++ b/lib/fstree/Makemodule.am
@@ -4,7 +4,6 @@ libfstree_a_SOURCES += lib/fstree/post_process.c lib/fstree/get_path.c
 libfstree_a_SOURCES += lib/fstree/mknode.c lib/fstree/fstree_from_dir.c
 libfstree_a_SOURCES += lib/fstree/add_by_path.c lib/fstree/get_by_path.c
 libfstree_a_SOURCES += include/fstree.h lib/fstree/internal.h
-libfstree_a_SOURCES += lib/fstree/source_date_epoch.c
 libfstree_a_SOURCES += lib/fstree/sort_by_file.c
 libfstree_a_CFLAGS = $(AM_CFLAGS)
 libfstree_a_CPPFLAGS = $(AM_CPPFLAGS)
diff --git a/lib/fstree/fstree.c b/lib/fstree/fstree.c
index 7c00755..2ea5fa2 100644
--- a/lib/fstree/fstree.c
+++ b/lib/fstree/fstree.c
@@ -5,6 +5,7 @@
  * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
  */
 #include "internal.h"
+#include "util/util.h"
 
 #include <string.h>
 #include <stdlib.h>
diff --git a/lib/fstree/internal.h b/lib/fstree/internal.h
index d14fb4f..b876e45 100644
--- a/lib/fstree/internal.h
+++ b/lib/fstree/internal.h
@@ -10,13 +10,6 @@
 #include "config.h"
 #include "fstree.h"
 
-/*
-  If the environment variable SOURCE_DATE_EPOCH is set to a parsable number
-  that fits into an unsigned 32 bit value, return its value. Otherwise,
-  default to 0.
- */
-sqfs_u32 get_source_date_epoch(void);
-
 void fstree_insert_sorted(tree_node_t *root, tree_node_t *n);
 
 #endif /* FSTREE_INTERNAL_H */
diff --git a/lib/util/Makemodule.am b/lib/util/Makemodule.am
index d37f2b1..b65ebda 100644
--- a/lib/util/Makemodule.am
+++ b/lib/util/Makemodule.am
@@ -12,6 +12,7 @@ libutil_a_SOURCES += lib/util/is_memory_zero.c
 libutil_a_SOURCES += lib/util/mkdir_p.c
 libutil_a_SOURCES += lib/util/canonicalize_name.c
 libutil_a_SOURCES += lib/util/filename_sane.c
+libutil_a_SOURCES += lib/util/source_date_epoch.c
 libutil_a_CFLAGS = $(AM_CFLAGS)
 libutil_a_CPPFLAGS = $(AM_CPPFLAGS)
 
diff --git a/lib/fstree/source_date_epoch.c b/lib/util/source_date_epoch.c
index 1efa688..26e5530 100644
--- a/lib/fstree/source_date_epoch.c
+++ b/lib/util/source_date_epoch.c
@@ -1,10 +1,10 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-3.0-or-later */
 /*
  * source_date_epoch.c
  *
  * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
  */
-#include "internal.h"
+#include "util/util.h"
 
 #include <stdlib.h>
 #include <stdio.h>