hygiene, include sys/stat.h for fstat() in gloom.c
Merge branch 'tool/gloom'

* tool/gloom:
  hygiene, include sys/stat.h for fstat() in gloom.c
tune, make sure glep_simd_gr() isn't inlined because of frame switching

The frame would be several hundred kB in size and hence
all the inlining advantages would be gobbled up by
memcpy()ing that big frame.
Merge branch 'tool/glep'

* tool/glep:
  tune, make sure glep_simd_gr() isn't inlined because of frame switching