On 08/23/2016 03:19 AM, Pedro Alves wrote:
On 08/23/2016 02:55 AM, Patrick Palka wrote:
Any reason why automatic dependency generation is not used for the
build/*.o objects too?
Historic. Tromey had a big patch a long while ago that made
everything be covered by auto dependencies. That turned out to
trickle some GNU make bug and was backed out. Later on, a more
incremental approach was taken, and that left out build/*.o objects
for starters:
https://gcc.gnu.org/ml/gcc/2013-07/msg00242.html
https://gcc.gnu.org/ml/gcc-patches/2013-07/msg01218.html
https://gcc.gnu.org/ml/gcc-patches/2013-07/msg01386.html
I couldn't find the original patch, but it's in the lists
somewhere.
ISTM we ought to try and rectify the dependency situation for the build
bits. The haphazard way we've managed dependencies may have made sense
in 1992, but doesn't today...
Jeff
