See #440

[skip ci]

See #440

See #414

[skip ci]

See #428

[skip ci]

See #428

See #347

See #347

See #440

* Fix CI

* Another attempt

* Another tweak

See #428

See #428.

Note that building Hadrian with Cabal currently fails on Windows, hence using Stack.

Also see #440: build.bat may later be relocated to the top of the GHC tree.

See #428.

Also see #440: build.sh may later be relocated to the top of the GHC tree.

See #433

See #438

See #435, #430

See #435

Ben Gamari authored 7 years ago and Andrey Mokhov committed 7 years ago

The previous approach was terribly unreliable, leading me to waste an hour
debugging #425.

Douglas Wilson authored 7 years ago and Andrey Mokhov committed 7 years ago

Addresses Issue #428

See #428

Ben Gamari authored 7 years ago and Andrey Mokhov committed 7 years ago

When I added `-qg` to the default RTS options in
57cfa03c (#385) I neglected to consider that it
the -with-rtsopts flag would override the previous flag setting `-I0`. This
had the effect of reenabling idle GC, causing GC time to regress terribly. I
likely didn't notice this since I had passed the flags directly to the `hadrian`
executable with `+RTS` while testing.

Moreover, I mistakenly wrote `-qg0`, which (somewhat confusingly)
actually *enables* parallel GC. Instead I wanted to write `-qg`.

See #250

See #250

See #250

See #314

See #314

See #314

See #314

See #314

See #426

See #314