Parallel build behaves erratic under Windows

Under Windows, make -j4 will freeze randomly all through the build system (every ~ 1-2 minutes). The only way to get it to resume it is to kill the make process and restart it. It sometimes even freezes on things like rm or happy.

This makes building GHC take an unbearably long time.

Tested on latest MinGW.

GNU Make 3.81
Copyright (C) 2006  Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

This program built for i686-pc-msys

Trac metadata

Trac field	Value
Version	7.7
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Build System
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture

changed weight to 5

added Tbug Trac import labels

I've seen this. I think it is this regression: http://sourceforge.net/p/mingw/bugs/1950/

However, when I revert my version of msys-core-bin, I have not been able to get parallel make. Give it a try; you may have better luck.

closed

The mailing list suggested using MSYS2, which has a working make w/ -j. This seems to resolve the problem. http://sourceforge.net/projects/msys2/

Since this isn't really a GHC bug, I'm closing it.

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedFixed

The new Hadrian build system has been merged. Relabeling the tickets concerning the legacy make build system to prevent confusion.

Trac metadata

Trac field	Value
Component	Build System → Build System (make)

added ghc build failure label

added Pnormal label