diff --git a/Mesa.spec b/Mesa.spec
index c04e119..4af30ec 100644
--- a/Mesa.spec
+++ b/Mesa.spec
@@ -11,7 +11,7 @@
 Name:          Mesa
 Epoch:         1
 Version:       18.3.4
-Release:       1mamba
+Release:       2mamba
 Summary:       A 3-D graphics library with an API which is very similar to that of OpenGL
 Group:         System/Libraries
 Vendor:        openmamba
@@ -353,6 +353,8 @@ sed -i 's|default_driver="xlib"|default_driver="dri"|' configure
    --enable-egl \
    --enable-gles1 \
    --enable-gles2 \
+   --enable-dri3 \
+   --with-glx=dri \
    --with-platforms=x11,drm,wayland,surfaceless \
    --enable-driglx-direct \
    --enable-dri \
@@ -373,7 +375,6 @@ sed -i 's|default_driver="xlib"|default_driver="dri"|' configure
    --enable-gallium-egl \
    --disable-llvm \
 %else
-   --enable-texture-float \
    --enable-llvm \
    --enable-llvm-shared-libs \
    --with-gallium-drivers=nouveau,r300,r600,radeonsi,svga,swrast,virgl \
@@ -747,6 +748,9 @@ sed -i "s|%{_prefix}/lib/libGL.la||" %{_libdir}/*.la
 %endif
 
 %changelog
+* Sun Mar 03 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 18.3.4-2mamba
+- added enable-dri3 and checked other configuration settings
+
 * Tue Feb 19 2019 Automatic Build System <autodist@mambasoft.it> 18.3.4-1mamba
 - automatic version update by autodist