diff --git a/common/design_block_info.cpp b/common/design_block_info.cpp
index e915e73a29..55aedb95ec 100644
--- a/common/design_block_info.cpp
+++ b/common/design_block_info.cpp
@@ -96,16 +96,6 @@ bool DESIGN_BLOCK_INFO::InLibrary( const wxString& aLibrary ) const
 }
 
 
-void DESIGN_BLOCK_INFO::ensure_loaded()
-{
-    // Lazy-loading.  MUST NOT be called from multi-threaded environment.
-    LOCALE_IO toggle_locale;
-
-    if( !m_loaded )
-        load();
-}
-
-
 bool operator<( const DESIGN_BLOCK_INFO& lhs, const DESIGN_BLOCK_INFO& rhs )
 {
     int retv = StrNumCmp( lhs.m_nickname, rhs.m_nickname, false );
diff --git a/common/design_block_info.h b/common/design_block_info.h
index e14bb0f757..4816438681 100644
--- a/common/design_block_info.h
+++ b/common/design_block_info.h
@@ -42,6 +42,7 @@ class DESIGN_BLOCK_LIST_IMPL;
 class PROGRESS_REPORTER;
 class wxTopLevelWindow;
 class KIWAY;
+class LOCALE_IO;
 class wxTextFile;
 
 
@@ -106,10 +107,14 @@ public:
     friend bool operator<( const DESIGN_BLOCK_INFO& lhs, const DESIGN_BLOCK_INFO& rhs );
 
 protected:
-    void ensure_loaded();
+    void ensure_loaded()
+    {
+        if( !m_loaded )
+            load();
+    }
 
     /// lazily load stuff not filled in by constructor.  This may throw IO_ERRORS.
-    virtual void load(){};
+    virtual void load( const LOCALE_IO* locale = nullptr ) {};
 
 protected:
     DESIGN_BLOCK_LIST* m_owner;    ///< provides access to DESIGN_BLOCK_LIB_TABLE
diff --git a/common/design_block_info_impl.cpp b/common/design_block_info_impl.cpp
index fd80f64886..4fcaa1cfc1 100644
--- a/common/design_block_info_impl.cpp
+++ b/common/design_block_info_impl.cpp
@@ -35,14 +35,14 @@
 #include <wx/wfstream.h>
 
 
-void DESIGN_BLOCK_INFO_IMPL::load()
+void DESIGN_BLOCK_INFO_IMPL::load( const LOCALE_IO* locale )
 {
     DESIGN_BLOCK_LIB_TABLE* dbtable = m_owner->GetTable();
 
     wxASSERT( dbtable );
 
     std::unique_ptr<const DESIGN_BLOCK> design_block( dbtable->GetEnumeratedDesignBlock( m_nickname, m_dbname,
-                                                                                         true ) );
+                                                                                         locale ) );
 
     if( design_block )
     {
@@ -164,7 +164,7 @@ void DESIGN_BLOCK_LIST_IMPL::loadDesignBlocks()
     std::vector<std::future<size_t>> returns( num_elements );
 
     auto db_thread =
-            [ this, &queue_parsed ]() -> size_t
+            [ this, &queue_parsed, &toggle_locale ]() -> size_t
             {
                 wxString nickname;
 
@@ -176,7 +176,7 @@ void DESIGN_BLOCK_LIST_IMPL::loadDesignBlocks()
                 CatchErrors(
                         [&]()
                         {
-                            m_lib_table->DesignBlockEnumerate( dbnames, nickname, false, true );
+                            m_lib_table->DesignBlockEnumerate( dbnames, nickname, false, &toggle_locale );
                         } );
 
                 for( wxString dbname : dbnames )
@@ -184,7 +184,7 @@ void DESIGN_BLOCK_LIST_IMPL::loadDesignBlocks()
                     CatchErrors(
                             [&]()
                             {
-                                auto* dbinfo = new DESIGN_BLOCK_INFO_IMPL( this, nickname, dbname );
+                                auto* dbinfo = new DESIGN_BLOCK_INFO_IMPL( this, nickname, dbname, &toggle_locale );
                                 queue_parsed.move_push( std::unique_ptr<DESIGN_BLOCK_INFO>( dbinfo ) );
                             } );
 
diff --git a/common/design_block_info_impl.h b/common/design_block_info_impl.h
index 5491728eef..cdc2b55b5b 100644
--- a/common/design_block_info_impl.h
+++ b/common/design_block_info_impl.h
@@ -36,7 +36,7 @@ class KICOMMON_API DESIGN_BLOCK_INFO_IMPL : public DESIGN_BLOCK_INFO
 {
 public:
     DESIGN_BLOCK_INFO_IMPL( DESIGN_BLOCK_LIST* aOwner, const wxString& aNickname,
-                            const wxString& aDesignBlockName )
+                            const wxString& aDesignBlockName, const LOCALE_IO* aLocale )
     {
         m_nickname = aNickname;
         m_dbname = aDesignBlockName;
@@ -44,7 +44,7 @@ public:
 
         m_owner = aOwner;
         m_loaded = false;
-        load();
+        load( aLocale );
     }
 
     // A constructor for cached items
@@ -73,7 +73,7 @@ public:
     }
 
 protected:
-    virtual void load() override;
+    virtual void load( const LOCALE_IO* aLocale = nullptr ) override;
 };
 
 
diff --git a/common/design_block_lib_table.cpp b/common/design_block_lib_table.cpp
index f89c2c9780..a1d07351c7 100644
--- a/common/design_block_lib_table.cpp
+++ b/common/design_block_lib_table.cpp
@@ -334,12 +334,12 @@ long long DESIGN_BLOCK_LIB_TABLE::GenerateTimestamp( const wxString* aNickname )
 
 
 void DESIGN_BLOCK_LIB_TABLE::DesignBlockEnumerate( wxArrayString&  aDesignBlockNames, const wxString& aNickname,
-                                                   bool aBestEfforts, bool aThreadSafe )
+                                                   bool aBestEfforts, const LOCALE_IO* aLocale )
 {
     const DESIGN_BLOCK_LIB_TABLE_ROW* row = FindRow( aNickname, true );
     wxASSERT( row->plugin );
 
-    if( !aThreadSafe )
+    if( !aLocale )
     {
         LOCALE_IO toggle_locale;
 
@@ -402,12 +402,12 @@ static void setLibNickname( DESIGN_BLOCK* aModule, const wxString& aNickname,
 const DESIGN_BLOCK*
 DESIGN_BLOCK_LIB_TABLE::GetEnumeratedDesignBlock( const wxString& aNickname,
                                                   const wxString& aDesignBlockName,
-                                                  bool aThreadSafe )
+                                                  const LOCALE_IO* aLocale )
 {
     const DESIGN_BLOCK_LIB_TABLE_ROW* row = FindRow( aNickname, true );
     wxASSERT( row->plugin );
 
-    if( !aThreadSafe )
+    if( !aLocale )
     {
         LOCALE_IO toggle_locale;
 
diff --git a/common/design_block_tree_model_adapter.cpp b/common/design_block_tree_model_adapter.cpp
index a7c7b23cfc..31c3a1f6e2 100644
--- a/common/design_block_tree_model_adapter.cpp
+++ b/common/design_block_tree_model_adapter.cpp
@@ -141,7 +141,7 @@ wxString DESIGN_BLOCK_TREE_MODEL_ADAPTER::GenerateInfo( LIB_ID const& aLibId, in
 
     try
     {
-        db = m_libs->GetEnumeratedDesignBlock( aLibId.GetLibNickname(), aLibId.GetLibItemName(), false );
+        db = m_libs->GetEnumeratedDesignBlock( aLibId.GetLibNickname(), aLibId.GetLibItemName() );
     }
     catch( const IO_ERROR& ioe )
     {
diff --git a/common/footprint_info.cpp b/common/footprint_info.cpp
index d0abe43bdc..933c2e98ab 100644
--- a/common/footprint_info.cpp
+++ b/common/footprint_info.cpp
@@ -98,16 +98,6 @@ bool FOOTPRINT_INFO::InLibrary( const wxString& aLibrary ) const
 }
 
 
-void FOOTPRINT_INFO::ensure_loaded()
-{
-    // Lazy-loading.  MUST NOT be called from multi-threaded environment.
-    LOCALE_IO toggle_locale;
-
-    if( !m_loaded )
-        load();
-}
-
-
 bool operator<( const FOOTPRINT_INFO& lhs, const FOOTPRINT_INFO& rhs )
 {
     int retv = StrNumCmp( lhs.m_nickname, rhs.m_nickname, false );
diff --git a/common/fp_lib_table.cpp b/common/fp_lib_table.cpp
index befe56c4c1..84bab80cce 100644
--- a/common/fp_lib_table.cpp
+++ b/common/fp_lib_table.cpp
@@ -308,12 +308,12 @@ long long FP_LIB_TABLE::GenerateTimestamp( const wxString* aNickname )
 
 
 void FP_LIB_TABLE::FootprintEnumerate( wxArrayString& aFootprintNames, const wxString& aNickname,
-                                       bool aBestEfforts, bool aThreadSafe )
+                                       bool aBestEfforts, const LOCALE_IO* aLocale )
 {
     const FP_LIB_TABLE_ROW* row = FindRow( aNickname, true );
     wxASSERT( row->plugin );
 
-    if( !aThreadSafe )
+    if( !aLocale )
     {
         LOCALE_IO toggle_locale;
 
@@ -375,12 +375,12 @@ static void setLibNickname( FOOTPRINT* aModule, const wxString& aNickname,
 
 const FOOTPRINT* FP_LIB_TABLE::GetEnumeratedFootprint( const wxString& aNickname,
                                                        const wxString& aFootprintName,
-                                                       bool aThreadSafe )
+                                                       const LOCALE_IO* aLocale )
 {
     const FP_LIB_TABLE_ROW* row = FindRow( aNickname, true );
     wxASSERT( row->plugin );
 
-    if( !aThreadSafe )
+    if( !aLocale )
     {
         LOCALE_IO toggle_locale;
 
diff --git a/cvpcb/display_footprints_frame.cpp b/cvpcb/display_footprints_frame.cpp
index 2c793448fc..5ee0a44436 100644
--- a/cvpcb/display_footprints_frame.cpp
+++ b/cvpcb/display_footprints_frame.cpp
@@ -304,7 +304,7 @@ FOOTPRINT* DISPLAY_FOOTPRINTS_FRAME::GetFootprint( const wxString& aFootprintNam
 
     try
     {
-        if( const FOOTPRINT* fp = fpTable->GetEnumeratedFootprint( libNickname, fpName, false ) )
+        if( const FOOTPRINT* fp = fpTable->GetEnumeratedFootprint( libNickname, fpName ) )
             footprint = static_cast<FOOTPRINT*>( fp->Duplicate( IGNORE_PARENT_GROUP ) );
     }
     catch( const IO_ERROR& ioe )
diff --git a/cvpcb/readwrite_dlgs.cpp b/cvpcb/readwrite_dlgs.cpp
index 4689481eab..4a102eb5d0 100644
--- a/cvpcb/readwrite_dlgs.cpp
+++ b/cvpcb/readwrite_dlgs.cpp
@@ -58,7 +58,7 @@ static int guessNickname( FP_LIB_TABLE* aTbl, LIB_ID* aFootprintId )
     {
         wxArrayString fpnames;
 
-        aTbl->FootprintEnumerate( fpnames, nicks[libNdx], true, false );
+        aTbl->FootprintEnumerate( fpnames, nicks[libNdx], true );
 
         for( unsigned nameNdx = 0; nameNdx < fpnames.size(); ++nameNdx )
         {
diff --git a/include/design_block_lib_table.h b/include/design_block_lib_table.h
index b839f36c9f..d951d07d62 100644
--- a/include/design_block_lib_table.h
+++ b/include/design_block_lib_table.h
@@ -158,13 +158,13 @@ public:
      *                          \a aNickname.
      * @param aNickname is a locator for the "library", it is a "name" in LIB_TABLE_ROW.
      * @param aBestEfforts if true, don't throw on errors.
-     * @param aThreadSafe if true, do not set LOCALE_IO (which is global).  Caller is responsible
-     *                    for setting it up correctly.
+     * @param aLocale a previously set-up locale.  Currently required for multi-threading, as LOCALE_IO
+     *                uses global storage.
      *
      * @throw IO_ERROR if the library cannot be found, or design block cannot be loaded.
      */
     void DesignBlockEnumerate( wxArrayString& aDesignBlockNames, const wxString& aNickname,
-                               bool aBestEfforts, bool aThreadSafe );
+                               bool aBestEfforts, const LOCALE_IO* aLocale = nullptr );
 
     /**
      * Generate a hashed timestamp representing the last-mod-times of the library indicated
@@ -197,13 +197,13 @@ public:
      * A version of #DesignBlockLoad() for use after #DesignBlockEnumerate() for more efficient
      * cache management.
      *
-     * @param aThreadSafe if true, do not set LOCALE_IO (which is global).  Caller is responsible
-     *                    for setting it up correctly.
+     * @param aLocale a previously set-up locale.  Currently required for multi-threading, as LOCALE_IO
+     *                uses global storage.
      *
      * The return value is const to allow it to return a reference to a cached item.
      */
     const DESIGN_BLOCK* GetEnumeratedDesignBlock( const wxString& aNickname, const wxString& aDesignBlockName,
-                                                  bool aThreadSafe );
+                                                  const LOCALE_IO* aLocale = nullptr );
     /**
      * The set of return values from DesignBlockSave() below.
      */
diff --git a/include/footprint_info.h b/include/footprint_info.h
index 6ec1c8127d..e8e0f5f73f 100644
--- a/include/footprint_info.h
+++ b/include/footprint_info.h
@@ -46,6 +46,7 @@ class FOOTPRINT_LIST_IMPL;
 class PROGRESS_REPORTER;
 class wxTopLevelWindow;
 class KIWAY;
+class LOCALE_IO;
 class wxTextFile;
 
 
@@ -127,10 +128,14 @@ public:
     friend bool operator<( const FOOTPRINT_INFO& lhs, const FOOTPRINT_INFO& rhs );
 
 protected:
-    void ensure_loaded();
+    void ensure_loaded()
+    {
+        if( !m_loaded )
+            load();
+    }
 
     /// lazily load stuff not filled in by constructor.  This may throw IO_ERRORS.
-    virtual void load() { };
+    virtual void load( const LOCALE_IO* aLocale = nullptr ) { };
 
     FOOTPRINT_LIST* m_owner; ///< provides access to FP_LIB_TABLE
 
diff --git a/include/fp_lib_table.h b/include/fp_lib_table.h
index de4b9a8824..7f8a49d34f 100644
--- a/include/fp_lib_table.h
+++ b/include/fp_lib_table.h
@@ -32,6 +32,7 @@
 class FOOTPRINT;
 class FP_LIB_TABLE_GRID;
 class PCB_IO;
+class LOCALE_IO;
 
 
 /**
@@ -143,13 +144,13 @@ public:
      * @param aFootprintNames is the list to fill with the footprint names found in \a aNickname
      * @param aNickname is a locator for the "library", it is a "name" in LIB_TABLE_ROW.
      * @param aBestEfforts if true, don't throw on errors.
-     * @param aThreadSafe if true, do not set LOCALE_IO (which is global).  Caller is responsible
-     *                    for setting it up correctly.
+     * @param aLocale a previously set-up locale.  Currently required for multi-threading, as LOCALE_IO
+     *                uses global storage.
      *
      * @throw IO_ERROR if the library cannot be found, or footprint cannot be loaded.
      */
     void FootprintEnumerate( wxArrayString& aFootprintNames, const wxString& aNickname,
-                             bool aBestEfforts, bool aThreadSafe );
+                             bool aBestEfforts, const LOCALE_IO* aLocale = nullptr );
 
     /**
      * Generate a hashed timestamp representing the last-mod-times of the library indicated
@@ -182,14 +183,14 @@ public:
      * A version of #FootprintLoad() for use after #FootprintEnumerate() for more efficient
      * cache management.
      *
-     * @param aThreadSafe if true, do not set LOCALE_IO (which is global).  Caller is responsible
-     *                    for setting it up correctly.
+     * @param aLocale a previously set-up locale.  Currently required for multi-threading, as LOCALE_IO
+     *                uses global storage.
      *
      * The return value is const to allow it to return a reference to a cached item.
      */
     const FOOTPRINT* GetEnumeratedFootprint( const wxString& aNickname,
                                              const wxString& aFootprintName,
-                                             bool aThreadSafe );
+                                             const LOCALE_IO* aLocale = nullptr );
     /**
      * The set of return values from FootprintSave() below.
      */
diff --git a/pcbnew/files.cpp b/pcbnew/files.cpp
index 220882f678..5d9bf82432 100644
--- a/pcbnew/files.cpp
+++ b/pcbnew/files.cpp
@@ -75,7 +75,6 @@
 #include <widgets/filedlg_import_non_kicad.h>
 #include <widgets/wx_html_report_box.h>
 #include <wx_filename.h>  // For ::ResolvePossibleSymlinks()
-#include <locale_io.h>
 #include <kiplatform/io.h>
 
 #include <wx/stdpaths.h>
@@ -840,7 +839,6 @@ bool PCB_EDIT_FRAME::OpenProjectFiles( const std::vector<wxString>& aFileSet, in
             // which prompts the user to continue with overwrite or abort)
             if( newLibPath.Length() > 0 )
             {
-                LOCALE_IO           toggle_locale;
                 IO_RELEASER<PCB_IO> piSexpr( PCB_IO_MGR::PluginFind( PCB_IO_MGR::KICAD_SEXP ) );
 
                 for( FOOTPRINT* footprint : loadedFootprints )
diff --git a/pcbnew/footprint_info_impl.cpp b/pcbnew/footprint_info_impl.cpp
index 6d45b09da7..2f585f36dd 100644
--- a/pcbnew/footprint_info_impl.cpp
+++ b/pcbnew/footprint_info_impl.cpp
@@ -41,13 +41,13 @@
 #include <wx/wfstream.h>
 
 
-void FOOTPRINT_INFO_IMPL::load()
+void FOOTPRINT_INFO_IMPL::load( const LOCALE_IO* aLocale )
 {
     FP_LIB_TABLE* fptable = m_owner->GetTable();
 
     wxASSERT( fptable );
 
-    const FOOTPRINT* footprint = fptable->GetEnumeratedFootprint( m_nickname, m_fpname, true );
+    const FOOTPRINT* footprint = fptable->GetEnumeratedFootprint( m_nickname, m_fpname, aLocale );
 
     if( footprint == nullptr ) // Should happen only with malformed/broken libraries
     {
@@ -180,7 +180,7 @@ void FOOTPRINT_LIST_IMPL::loadFootprints()
     std::vector<std::future<size_t>>            returns( num_elements );
 
     auto fp_thread =
-            [ this, &queue_parsed ]() -> size_t
+            [ this, &queue_parsed, &toggle_locale ]() -> size_t
             {
                 wxString nickname;
 
@@ -192,7 +192,7 @@ void FOOTPRINT_LIST_IMPL::loadFootprints()
                 CatchErrors(
                         [&]()
                         {
-                            m_lib_table->FootprintEnumerate( fpnames, nickname, false, true );
+                            m_lib_table->FootprintEnumerate( fpnames, nickname, false, &toggle_locale );
                         } );
 
                 for( wxString fpname : fpnames )
@@ -200,7 +200,7 @@ void FOOTPRINT_LIST_IMPL::loadFootprints()
                     CatchErrors(
                             [&]()
                             {
-                                auto* fpinfo = new FOOTPRINT_INFO_IMPL( this, nickname, fpname );
+                                auto* fpinfo = new FOOTPRINT_INFO_IMPL( this, nickname, fpname, &toggle_locale );
                                 queue_parsed.move_push( std::unique_ptr<FOOTPRINT_INFO>( fpinfo ) );
                             } );
 
diff --git a/pcbnew/footprint_info_impl.h b/pcbnew/footprint_info_impl.h
index ed191271ff..fee0c569b6 100644
--- a/pcbnew/footprint_info_impl.h
+++ b/pcbnew/footprint_info_impl.h
@@ -34,8 +34,8 @@ class LOCALE_IO;
 class FOOTPRINT_INFO_IMPL : public FOOTPRINT_INFO
 {
 public:
-    FOOTPRINT_INFO_IMPL( FOOTPRINT_LIST* aOwner, const wxString& aNickname,
-                         const wxString& aFootprintName )
+    FOOTPRINT_INFO_IMPL( FOOTPRINT_LIST* aOwner, const wxString& aNickname, const wxString& aFootprintName,
+                         const LOCALE_IO* aLocale )
     {
         m_nickname = aNickname;
         m_fpname = aFootprintName;
@@ -45,7 +45,7 @@ public:
 
         m_owner = aOwner;
         m_loaded = false;
-        load();
+        load( aLocale );
     }
 
     // A constructor for cached items
@@ -77,7 +77,7 @@ public:
     }
 
 protected:
-    virtual void load() override;
+    virtual void load( const LOCALE_IO* aLocale ) override;
 };
 
 
diff --git a/pcbnew/footprint_libraries_utils.cpp b/pcbnew/footprint_libraries_utils.cpp
index 325863d9e7..30a750fb71 100644
--- a/pcbnew/footprint_libraries_utils.cpp
+++ b/pcbnew/footprint_libraries_utils.cpp
@@ -51,7 +51,6 @@
 #include <footprint_editor_settings.h>
 #include <footprint_viewer_frame.h>
 #include <io/kicad/kicad_io_utils.h>
-#include <locale_io.h>
 #include <view/view_controls.h>
 #include <wx/choicdlg.h>
 #include <wx/filedlg.h>
@@ -692,7 +691,6 @@ void PCB_EDIT_FRAME::ExportFootprintsToLibrary( bool aStoreInNewLib, const wxStr
                 libNickname = row->GetNickName();
         }
 
-        LOCALE_IO              toggle_locale;
         PCB_IO_MGR::PCB_FILE_T piType = PCB_IO_MGR::KICAD_SEXP;
         IO_RELEASER<PCB_IO>    pi( PCB_IO_MGR::PluginFind( piType ) );
         std::map<std::string, UTF8> options { { "skip_cache_validation", "1" } }; // Skip cache validation -- we just created it
@@ -1267,7 +1265,7 @@ FOOTPRINT* PCB_BASE_FRAME::CreateNewFootprint( wxString aFootprintName, const wx
         // Try to infer the footprint attributes from an existing footprint in the library
         try
         {
-            tbl->FootprintEnumerate( fpnames, aLibName, true, false );
+            tbl->FootprintEnumerate( fpnames, aLibName, true, nullptr );
 
             if( !fpnames.empty() )
                 footprintAttrs = tbl->FootprintLoad( aLibName, fpnames.Last() )->GetAttributes();
diff --git a/pcbnew/footprint_preview_panel.cpp b/pcbnew/footprint_preview_panel.cpp
index eb406e2376..0e58e337a1 100644
--- a/pcbnew/footprint_preview_panel.cpp
+++ b/pcbnew/footprint_preview_panel.cpp
@@ -177,8 +177,7 @@ bool FOOTPRINT_PREVIEW_PANEL::DisplayFootprint( const LIB_ID& aFPID )
 
     try
     {
-        const FOOTPRINT* fp = fptbl->GetEnumeratedFootprint( aFPID.GetLibNickname(), aFPID.GetLibItemName(),
-                                                             false );
+        const FOOTPRINT* fp = fptbl->GetEnumeratedFootprint( aFPID.GetLibNickname(), aFPID.GetLibItemName() );
 
         if( fp )
             m_currentFootprint.reset( static_cast<FOOTPRINT*>( fp->Duplicate( IGNORE_PARENT_GROUP ) ) );
diff --git a/pcbnew/generate_footprint_info.cpp b/pcbnew/generate_footprint_info.cpp
index 73525e9a46..a4a892ff10 100644
--- a/pcbnew/generate_footprint_info.cpp
+++ b/pcbnew/generate_footprint_info.cpp
@@ -122,8 +122,7 @@ public:
         try
         {
             m_footprint = m_fp_lib_table->GetEnumeratedFootprint( m_lib_id.GetLibNickname(),
-                                                                  m_lib_id.GetLibItemName(),
-                                                                  false );
+                                                                  m_lib_id.GetLibItemName() );
         }
         catch( const IO_ERROR& ioe )
         {
diff --git a/pcbnew/python/scripting/pcbnew_scripting_helpers.cpp b/pcbnew/python/scripting/pcbnew_scripting_helpers.cpp
index b6399bb0ea..9141a58db9 100644
--- a/pcbnew/python/scripting/pcbnew_scripting_helpers.cpp
+++ b/pcbnew/python/scripting/pcbnew_scripting_helpers.cpp
@@ -392,7 +392,7 @@ wxArrayString GetFootprints( const wxString& aNickName )
     if( !tbl )
         return footprintNames;
 
-    tbl->FootprintEnumerate( footprintNames, aNickName, true, false );
+    tbl->FootprintEnumerate( footprintNames, aNickName, true );
 
     return footprintNames;
 }
diff --git a/qa/pcbnew_utils/board_file_utils.cpp b/qa/pcbnew_utils/board_file_utils.cpp
index 81e6fe8562..ddc3922beb 100644
--- a/qa/pcbnew_utils/board_file_utils.cpp
+++ b/qa/pcbnew_utils/board_file_utils.cpp
@@ -27,7 +27,6 @@
 #include <pcb_io/kicad_sexpr/pcb_io_kicad_sexpr.h>
 #include <pcb_io/kicad_sexpr/pcb_io_kicad_sexpr_parser.h>
 #include <richio.h>
-#include <locale_io.h>
 #include <board.h>
 #include <footprint.h>
 
@@ -148,7 +147,6 @@ std::unique_ptr<FOOTPRINT> ReadFootprintFromFileOrStream( const std::string& aFi
 
 void DumpFootprintToFile( const FOOTPRINT& aFootprint, const std::string& aLibraryPath )
 {
-    LOCALE_IO          toggle_locale;
     PCB_IO_KICAD_SEXPR io;
     io.FootprintSave( aLibraryPath, &aFootprint, nullptr );
 }