Making tiny disable libmagic, and documenting the --disable-libmagic flag.

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4763 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -6,6 +6,8 @@
 	* global.c (shortcut_init): Delete a misplaced setting of 'currmenu'.
 	* global.c (shortcut_init, strtomenu): Cosmetic tweaks.
 	* doc/syntax/{changelog,c,po}.nanorc: Some small extra colourings.
+	* configure.ac, doc/texinfo/nano.texi: Make --enable-tiny disable
+	the use of libmagic, and document the --disable-libmagic flag.
 
 2014-04-10  Benno Schulenberg  <bensberg@justemail.net>
 	* doc/syntax/Makefile.am: Add four recent syntaxes to the packlist.

configure.ac

@@ -184,6 +184,9 @@ if test "x$enable_tiny" = xyes; then
     if test "x$enable_justify" != xyes; then
 	AC_DEFINE(DISABLE_JUSTIFY, 1, [Define this to disable the justify routines.])
     fi
+    if test "x$enable_libmagic" != xyes; then
+	enable_libmagic=no
+    fi
     if test "x$enable_mouse" != xyes; then
 	AC_DEFINE(DISABLE_MOUSE, 1, [Define this to disable the mouse support.])
     fi

doc/texinfo/nano.texi

@@ -859,6 +859,11 @@ things about using the editor.
 @item --disable-justify
 Disable the justify and unjustify functions.
 
+@item --disable-libmagic
+Disable the use of the library of magic-number tests (for determining
+the file type and thus which syntax to use for colouring -- often the
+tests on filename extension and header line will be enough).
+
 @item --disable-mouse
 Disable all mouse functionality.  This also eliminates the -m
 command-line option, which enables the mouse functionality.