[commit: ghc] ghc-8.0: INSTALL.md: Mention -j and other wibbles (35751ec)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : ghc-8.0
Link       : http://ghc.haskell.org/trac/ghc/changeset/35751ec8c732002e09b8bc31c1b5aa0dfd43bb97/ghc

>---------------------------------------------------------------

commit 35751ec8c732002e09b8bc31c1b5aa0dfd43bb97
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Thu Jan 14 11:33:09 2016 +0100

    INSTALL.md: Mention -j and other wibbles
    
    (cherry picked from commit b0641ad9009df1e3f4eae4274668840ff6e46732)


>---------------------------------------------------------------

35751ec8c732002e09b8bc31c1b5aa0dfd43bb97
 INSTALL.md | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/INSTALL.md b/INSTALL.md
index 34bb5b4..3ae9186 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -8,13 +8,13 @@ has all the answers.
 Before building GHC you may need to install some other tools and
 libraries.  See "Setting up your system for building GHC" [2].
 
-NB. in particular you need GHC installed in order to build GHC,
+N.B. in particular you need GHC installed in order to build GHC,
 because the compiler is itself written in Haskell.  For instructions
 on how to port GHC to a new platform, see the Building Guide [1].
 
 For building library documentation, you'll need Haddock [3].  To build
 the compiler documentation, you need [Sphinx](http://www.sphinx-doc.org/) and
-Xelatex (only for PDF output).
+XeLaTex (only for PDF output).
 
 Quick start:  the following gives you a default build:
 
@@ -28,7 +28,10 @@ Quick start:  the following gives you a default build:
 
     $ ./configure --enable-tarballs-autodownload
 
-The "perl boot" step is only necessary if this is a tree checked out
+You can use Make's `-jN` option to parallelize the build. It's generally best
+to set `N` somewhere around the core count of the build machine.
+
+The `perl boot` step is only necessary if this is a tree checked out
 from git.  For source distributions downloaded from GHC's web site,
 this step has already been performed.