Can't compile particle branch on linux

Maybe some of you have an idea what to do about it?

I can compile every svn branch on linux (SuSE-Linux 10.1) - with the exception of the particle branch.
I get an error message:

Linking program ==> ‘makesdna’
/tmp/branches/build/linux2/source/blender/makesdna/intern/makesdna.o: In function preprocess_include': makesdna.c:(.text+0x9b8): undefined reference toMEM_freeN’

And then more error messages about MEM_freeN. Does anybody have an idea about what went wrong and how to cure it?

With kind regards

Edit: Solved! I just had forgotten to delete the build directory after compiling another branch.