patch 4.6.99.26-4.6.99.27.diff.bz2 fails

Hello,

Following my previous messages on patching problems for sdk tarjets, Marc 
fixed this
in the last patch. See changelog :
 160. Fix various issues related to install.sdk targets when
      BuildModuleInSubdir is asserted during a build  (Marc La France,
      problem reported by Loic Mahe).

This patch is applied (on the Imakefiles), but the compilation process 
fails :

patching file xc/programs/Xserver/mfb/module/Makefile
Hunk #1 FAILED at 1549.
1 out of 1 hunk FAILED -- saving rejects to file 
xc/programs/Xserver/mfb/module/Makefile.rej
patching file xc/programs/Xserver/cfb/module/Makefile
Hunk #1 FAILED at 1743.
Hunk #2 FAILED at 1756.
Hunk #3 FAILED at 1769.
Hunk #4 FAILED at 1782.
Hunk #5 FAILED at 1795.
Hunk #6 FAILED at 1808.
6 out of 6 hunks FAILED -- saving rejects to file 
xc/programs/Xserver/cfb/module/Makefile.rej
patching file xc/programs/Xserver/fb/module/Makefile
Hunk #1 FAILED at 1426.
Hunk #2 FAILED at 1439.
2 out of 2 hunks FAILED -- saving rejects to file 
xc/programs/Xserver/fb/module/Makefile.rej
patching file xc/programs/Xserver/miext/shadow/module/Makefile
Hunk #1 FAILED at 1050.
1 out of 1 hunk FAILED -- saving rejects to file 
xc/programs/Xserver/miext/shadow/module/Makefile.rej

Loïc