[Gm2] gm2 on arm regression results

[Gaius Mulley]

Hi,

I've just built gm2 and run the regression tests and obtained
the following results:

               === gm2 Summary ===

# of expected passes           9638
# of unexpected failures       132

This involved five steps:

  (i)   build gm2/gcc and install
  (ii)  set PATH to use this gcc/gm2 combination.
  (iii) build and install libpth-dev
  (iv)  revert PATH to its original value
        set LD_LIBRARY_PATH to include the directory where libpth.so.20
        resides
  (v)   now rebuild gm2 and run the regression tests
        (should be able to skip the rebuild)

by default libpth is now required during all linking.  This can be
overridden by the -fno-pth option.

regards,
Gaius