nt/INSTALL: Update instructions for parallel builds.

1 files changed, 11 insertions, 5 deletions

diff --git a/nt/INSTALL b/nt/INSTALL
index 7e7600ba005..f8303582aac 100644
--- a/nt/INSTALL
+++ b/nt/INSTALL
@@ -68,13 +68,19 @@
      With GNU Make, you can use the -j command-line option to have
      Make execute several commands at once, like this:
 
+       gmake -j 2
+
+     (With versions of GNU Make before 3.82, you need also set the
+     XMFLAGS variable, like this:
+
        gmake -j 2 XMFLAGS="-j 2"
 
-     The XMFLAGS variable overrides the default behavior of GNU Make
-     on Windows, whereby recursive Make invocations reset the maximum
-     number of simultaneous commands to 1.  The above command allows
-     up to 4 simultaneous commands at once in the top-level Make, and
-     up to 3 in each one of the recursive Make's.
+     The XMFLAGS variable overrides the default behavior of version
+     3.82 and older of GNU Make on Windows, whereby recursive Make
+     invocations reset the maximum number of simultaneous commands to
+     1.  The above command allows up to 4 simultaneous commands at
+     once in the top-level Make, and up to 3 in each one of the
+     recursive Make's.)
 
   4. Generate the Info manuals (only if you are building out of Bazaar,
      and if you have makeinfo.exe installed):