[glib] building: belated docs update: GNU make is required, not recommended

[Dan Winship <danw src gnome org>]

commit 9d7235dea7670a059cb4e653f6f9fee63560277f
Author: Dan Winship <danw gnome org>
Date:   Wed Nov 20 09:31:20 2013 -0500

    building: belated docs update: GNU make is required, not recommended
    
    https://bugzilla.gnome.org/show_bug.cgi?id=710519

 INSTALL.in                       |    2 +-
 docs/reference/glib/building.xml |   14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/INSTALL.in b/INSTALL.in
index 27a7c1a..8cc3ae8 100644
--- a/INSTALL.in
+++ b/INSTALL.in
@@ -21,7 +21,7 @@ information.) Information about pkg-config can be found at:
 
   http://www.freedesktop.org/software/pkgconfig/
 
-GNU make (http://www.gnu.org/software/make) is also recommended.
+GNU make (http://www.gnu.org/software/make) is also required.
 
 In order to implement conversions between character sets,
 GLib requires an implementation of the standard iconv() routine.
diff --git a/docs/reference/glib/building.xml b/docs/reference/glib/building.xml
index ecb9458..079db8d 100644
--- a/docs/reference/glib/building.xml
+++ b/docs/reference/glib/building.xml
@@ -75,13 +75,13 @@
       </listitem>
       <listitem>
         <para>
-          The GTK+ makefiles will mostly work with different versions
-          of <command>make</command>, however, there tends to be
-          a few incompatibilities, so the GTK+ team recommends
-          installing <ulink url="http://www.gnu.org/software/make";>GNU
-          make</ulink> if you don't already have it on your system
-          and using it. (It may be called <command>gmake</command>
-          rather than <command>make</command>.)
+          The GLib Makefiles make use of several features specific to
+          <ulink url="http://www.gnu.org/software/make";>GNU
+          make</ulink>, and will not build correctly with other
+          versions of <command>make</command>. You will need to
+          install it if you don't already have it on your system. (It
+          may be called <command>gmake</command> rather than
+          <command>make</command>.)
         </para>
       </listitem>
     </itemizedlist>