gprofng patches

[Vladimir Mezentsev]

  Hi HJ,

if everybody agree, let's push these patches of yours to the mainline 
sources:

[PATCH] gprofng: Use symver attribute if available
[PATCH 0/3] gprofng: Support build with older versions of GCC
[PATCH 1/3] gprofng: Define ATTRIBUTE_FALLTHROUGH
[PATCH 2/3] gprofng: Don't hardcode -Wno-nonnull-compare
[PATCH 3/3] gprofng: Don't hardcode -Wno-format-truncation/-Wno-switch

Thank you,
-Vladimir