install: set --enable-color on by default

Installation option '--enable-color' is set on by default which enables
the `auto` output color mode.

INSTALL.rst

@@ -512,12 +512,15 @@ instance :instopt:`--disable-set-manpath<--enable-set-manpath>`):
 
  Control if output should be colored by default or not.  A value of ``yes``
  equals to the ``auto`` color mode.  ``no`` equals to the ``never`` color
- mode. (default=no)
+ mode. (default=yes)
 
  .. only:: html
 
     .. versionadded:: 4.3
 
+    .. versionchanged:: 5.0
+       Configuration option default set to ``yes``
+
 .. instopt:: --enable-wa-277
 
  Activate workaround for issue #277 related to Tcsh history mechanism which

NEWS.rst

@@ -35,6 +35,8 @@ Modules 5.0.0-alpha (2021-07-XX)
 * Install: installation option :instopt:`--enable-advanced-version-spec` is
   set on by default which activates the :ref:`Advanced module version
   specifiers`
+* Install: installation option :instopt:`--enable-color` is set on by default
+  which enables the ``auto`` output color mode (see :envvar:`MODULES_COLOR`).
 
 
 .. _4.8 release notes:

configure

@@ -98,7 +98,7 @@ initconfin=initdir
 pager=less
 pageropts='-eFKRX'
 verbosity=normal
-color=n
+color=y
 darkbgcolors='hi=1:db=2:tr=2:se=2:er=91:wa=93:me=95:in=94:mp=1;94:di=94:al=96:va=93:sy=95:de=4:cm=92:aL=100:L=90;47:H=2:F=41:nF=43:S=46:sS=44'
 lightbgcolors='hi=1:db=2:tr=2:se=2:er=31:wa=33:me=35:in=34:mp=1;34:di=34:al=36:va=33:sy=35:de=4:cm=32:aL=107:L=47:H=2:F=101:nF=103:S=106:sS=104'
 termbg=dark
@@ -283,7 +283,7 @@ Optional Features:
   --enable-ml             define \`ml' command when Modules initializes [yes]
   --enable-color          control colored output. \`yes' equals to the \`auto'
                           color mode. \`no' equals to the \`never' color mode
-                          [no]
+                          [yes]
   --enable-wa-277         activate workaround for Tcsh history issue [no]
   --enable-windows-support
                           install all required files for Windows platform [no]