--with-included-ltdl infers --enable-ltdl-convenience

[Bob Friesenhahn]

With latest libtool and autoconf, if the argument --with-included-ltdl is 
provided, then libtool adds a --with-included-ltdl to config.status.  If this 
configuration is then re-used, autoconf warns about --with-included-ltdl since 
it is not a known supported configure option.

Configured with

/home/bfriesen/src/graphics/GraphicsMagick-head/configure 'CFLAGS=-v 
-errtags=yes -xO2 -xbuiltin=%all' 'CXXFLAGS=+w +w2 -xO3' 
'CPPFLAGS=-I/usr/local64/include' '--prefix=/usr/local64' 
'--with-quantum-depth=16' '--disable-shared' '--enable-static' 
'--enable-libtool-verbose' '--with-windows-font-dir=/usr/local/lib/X11/fonts' 
'--without-perl' '--with-umem' '--program-suffix=64Q16' '--with-included-ltdl'

but config.status then reports

% ./config.status --version config.status configured by 
/home/bfriesen/src/graphics/GraphicsMagick-head/configure, generated by GNU 
Autoconf 2.62,   with options "'CFLAGS=-v -errtags=yes -xO2 -xbuiltin=%all' 
'CXXFLAGS=+w +w2 -xO3' 'CPPFLAGS=-I/usr/local64/include' 
'--prefix=/usr/local64' '--with-quantum-depth=16' '--disable-shared' 
'--enable-static' '--enable-libtool-verbose' 
'--with-windows-font-dir=/usr/local/lib/X11/fonts' '--without-perl' 
'--with-umem' '--program-suffix=64Q16' '--with-included-ltdl' 
--enable-ltdl-convenience"

Bob
======================================
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/