watch out cuda - gcc compatibility

Here is the doc of cuda 4.2 release node. I tried Fedora14 version with gcc 4.4, and got GLIBCXX linking error. When I switched back to ubuntu 10.04 version, everything is fine so far.

  Distro            32 64  Kernel             GCC         GLIBC         
  ------            -- --  ------             ---         -----         
  Fedora14          X  X   2.6.35.6-45        4.5.1       2.12.90  
  ICC Compiler 11.1 X  X
  OpenSUSE-11.2     X  X   2.6.31.5-0.1       4.4.1       2.10.1      
  RHEL-5.>=5        X  X   2.6.18-238.el5     4.1.2       2.5 
  (5.5, 5.6, 5.7)   
  RHEL-6.X             X   2.6.32-            4.4.5       2.12 
  (6.0, 6.1)               131.0.15.el6
  SLES 11.1         X  X   2.6.32.12-0.7-pae  4.3-62.198  2.11.1-0.17.4
  Ubuntu-10.04      X  X   2.6.35-23-generic  4.4.5       2.12.1 
  Ubuntu-11.04      X  X   2.6.38-8-generic   4.5.2       2.13 

vtk conflicts with openjdk7 on my archlinux

cmake produced error with openjdk7. After replacing it with openjdk6 everything is fine.

merge pdf with

gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=combinedpdf.pdf -dBATCH 1.pdf 2.pdf 3.pdf