Log Message:
gperftools: updated to 2.12

gperftools-2.12

Brett T. Warden contributed one significant fix. After a change in the previous \ 
release, we installed broken pkg-config files. Brett noticed and fixed that. \ 
Huge thanks!

gperftools-2.11

Few minor fixes since rc couple weeks ago. Plus couple notable contributions:

Artem Polyakov has contributed auto-detection of several MPI systems w.r.t. \ 
filenames used by HEAPPROFILE and CPUPROFILE environment variables. Also, we now \ 
support HEAPPROFILE_USE_PID and CPUPROFILE_USE_PID environment variables that \ 
force profile filenames to have pid appended. Which will be useful for some \ 
programs that fork for parallelism.

Ken Raffenetti has extended MPI detection mentioned above with detection of \ 
MPICH system.