diff --git a/sdcc.spec b/sdcc.spec
index 7b72294..134f4ab 100644
--- a/sdcc.spec
+++ b/sdcc.spec
@@ -1,5 +1,5 @@
 Name:          sdcc
-Version:       3.9.0
+Version:       4.0.0
 Release:       1mamba
 Summary:       Small Device C Compiler
 Group:         Applications/Development
@@ -58,6 +58,11 @@ SDCC is a C compiler for 8051 class and similar microcontrollers.
 The package includes the compiler, assemblers and linkers, a device simulator and a core library.
 The processors supported (to a varying degree) include the 8051, ds390, z80, hc08, and PIC.
 
+%debug_package
+
+# Don't strip unrecognized static object files
+%define __brp_strip_static_archive /bin/true
+
 %prep
 %setup -q
 
@@ -114,6 +119,9 @@ The processors supported (to a varying degree) include the 8051, ds390, z80, hc0
 #%{_infodir}/bfd.info.gz
 
 %changelog
+* Sat Mar 14 2020 Automatic Build System <autodist@mambasoft.it> 4.0.0-1mamba
+- automatic version update by autodist
+
 * Thu May 02 2019 Automatic Build System <autodist@mambasoft.it> 3.9.0-1mamba
 - automatic version update by autodist