Disable CLocale in OpenBSD, it is broken there. Order used units. Issue #39368.

components/datetimectrls/datetimepicker.pas

@@ -42,12 +42,17 @@ unit DateTimePicker;
 interface
 
 uses
-  {$ifdef unix}
+  {$if defined(UNIX) and not defined(OPENBSD)}
   clocale, // needed to initialize default locale settings on Linux.
   {$endif}
-  Classes, SysUtils, Controls, LCLType, Graphics, Math, Buttons,
-  ExtCtrls, Forms, ComCtrls, Types, LMessages, LazUTF8, LCLIntf,
-  LCLProc, Themes, CalControlWrapper;
+  Types, Classes, SysUtils, Math,
+  // LCL
+  LCLType, LCLIntf, LMessages, Controls, Graphics, Buttons, ExtCtrls, Forms, ComCtrls,
+  Themes,
+  // LazUtils
+  LazUTF8, LazMethodList,
+  // DateTimeCtrls
+  CalControlWrapper;
 
 const
   { We will deal with the NullDate value the special way. It will be especially

components/lazreport/source/lr_class.pas

@@ -15,12 +15,15 @@ interface
 {$I LR_Vers.inc}
 
 uses
-  SysUtils, Math, strutils, DateUtils, {$IFDEF UNIX}CLocale,{$ENDIF}
-  Classes, TypInfo, MaskUtils, Variants, DB, DOM, XMLWrite, XMLRead, XMLConf,
-  Controls, Forms, Dialogs, Menus, Graphics, LCLProc, LCLType, LCLIntf,
-  Printers, osPrinters,
+  {$if defined(UNIX) and not defined(OPENBSD)}
+  CLocale,
+  {$endif}
+  Classes, TypInfo, SysUtils, Math, StrUtils, DateUtils,
+  MaskUtils, Variants, DB, DOM, XMLWrite, XMLRead, XMLConf,
+  // LCL
+  LCLType, LCLIntf, Controls, Forms, Dialogs, Menus, Graphics, Printers,
   // LazUtils
-  LazFileUtils, LazUTF8,
+  LazFileUtils, LazUTF8, LazLoggerBase,
   // IDEIntf
   PropEdits,
   // LazReport

ide/lazarus.pp

@@ -50,7 +50,7 @@ uses
   {$IFDEF IDE_MEM_CHECK}
   MemCheck,
   {$ENDIF}
-  {$IF defined(Unix)}
+  {$IF defined(Unix) and not defined(OPENBSD)}
   clocale,
   {$IFEND}
   SysUtils,