bin/44047: netpgp: fix the redistributable build by using $ECHO instead of $echo

[roam%ringlet.net@localhost]

>Number:         44047
>Category:       bin
>Synopsis:       netpgp: fix the redistributable build by using $ECHO instead 
>of $echo
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Nov 05 16:15:01 +0000 2010
>Originator:     Peter Pentchev
>Release:        
>Organization:
>Environment:
>Description:
Once again, thanks for maintaining netpgp!

After the recent autotools update, the configure script generates
the libtool config prologue with ECHO='echo' instead of echo='echo'.
However, the ltmain.sh script from buildaux/ still uses $echo, so
the build breaks badly.

One option would be to modify the configure script to output
the 'echo' variable instead of 'ECHO', but this might mean other
changes to the autotools infrastructure.  A simpler way is
the proposed patch that just replaces '$echo' with '$ECHO' in
buildaux/ltmain.sh.
>How-To-Repeat:
Download the redistributable version, ./configure, make,
watch it break when trying to compile the very first file.
>Fix:
Apply the simple patch available at:
http://devel.ringlet.net/security/netpgp/patches/08-libtool-echo.patch

Keep up the great work!