diff --git a/libglew.spec b/libglew.spec
index 5a03e18..80b18f7 100644
--- a/libglew.spec
+++ b/libglew.spec
@@ -1,6 +1,6 @@
 Name:          libglew
 Version:       2.2.0
-Release:       1mamba
+Release:       2mamba
 Summary:       The OpenGL Extension Wrangler Library
 Group:         System/Libraries
 Vendor:        openmamba
@@ -12,6 +12,7 @@ Patch0:        %{name}-1.5.1-makefile.patch
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: ldconfig
 BuildRequires: libGL-devel
 BuildRequires: libGLU-devel
 BuildRequires: libX11-devel
@@ -37,7 +38,7 @@ GLEW has been tested on a variety of operating systems, including Windows, Linux
 
 This package contains static libraries and header files need for development.
 
-#% debug_package
+%debug_package
 
 %prep
 %setup -q -n glew-%{version}
@@ -55,6 +56,8 @@ install -d -m0755 %{buildroot}%{_libdir}/pkgconfig/
    PKGDIR=%{_libdir}/pkgconfig \
    BINDIR=%{_bindir} LIBDIR=%{_libdir} INCDIR=%{_includedir}/GL
 
+chmod +x %{buildroot}%{_libdir}/lib*.so.*
+
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
@@ -75,6 +78,9 @@ install -d -m0755 %{buildroot}%{_libdir}/pkgconfig/
 %doc README.md
 
 %changelog
+* Fri May 15 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 2.2.0-2mamba
+- fixed +x library permissions; added debug package
+
 * Wed Apr 29 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 2.2.0-1mamba
 - update to 2.2.0