Revert "Remove unused change_extension()."

This reverts commit 6d1a7e90ec3244b8e532e03c5209d5e8448f422e.

It is used in DCP-o-matic, contrary to the comment.

2 files changed, 9 insertions, 0 deletions

diff --git a/src/filesystem.cc b/src/filesystem.cc
index bdd15039..cb38ddfe 100644
--- a/src/filesystem.cc
+++ b/src/filesystem.cc
@@ -297,6 +297,14 @@ dcp::filesystem::rename(boost::filesystem::path const& old_path, boost::filesyst
 }
 
 
+/* We don't really need this but let's add it for completeness */
+boost::filesystem::path
+dcp::filesystem::change_extension(boost::filesystem::path const& path, std::string const& new_extension)
+{
+	return boost::filesystem::change_extension(path, new_extension);
+}
+
+
 #ifdef DCPOMATIC_WINDOWS
 
 dcp::filesystem::directory_iterator::directory_iterator(boost::filesystem::path const& path)
diff --git a/src/filesystem.h b/src/filesystem.h
index 1d434200..679be1f9 100644
--- a/src/filesystem.h
+++ b/src/filesystem.h
@@ -47,6 +47,7 @@ namespace filesystem
 boost::filesystem::path absolute(boost::filesystem::path const& path);
 boost::filesystem::path canonical(boost::filesystem::path const& path);
 boost::filesystem::path weakly_canonical(boost::filesystem::path const& path);
+boost::filesystem::path change_extension(boost::filesystem::path const& from, std::string const& new_extension);
 void copy(boost::filesystem::path const& from, boost::filesystem::path const& to);
 void copy_file(boost::filesystem::path const& from, boost::filesystem::path const& to);
 void copy_file(boost::filesystem::path const& from, boost::filesystem::path const& to, boost::system::error_code& ec);