On Tue, 2006-07-25 at 13:45 +0100, Joel Reymont wrote:
On Jul 25, 2006, at 1:34 PM, Christian Maeder wrote:
On our solaris sparc machine compiling our main binary (optimized) takes 3h:38min whereas (only) 55min under linux. At least our sparcs may die out sooner or later.
Interestingly enough, it takes the 3+ hours to compile GHC 6.5 on my Intel Core-Duo Mac.
BTW, ghc's build system does support parallel make, so if you do have more than one CPU then you can cut compile times by using make -j2 (assuming you've got 2 CPUs) You can also cut compile times by compiling fewer non-core libraries and by using -fasm rather than -fvia-C. add these lines to your mk/build.mk (which will not exist unless you create it): SRC_HC_OPTS = -O -fasm GhcBootLibs = YES Note that using GhcBootLibs = YES means you only get a minimal set of packages, eg no stm, mtl, fgl, QuickCheck etc etc. If that's not to your liking then you'll need to customise the libraries/Makefile . Duncan