[bug #25804] configure script does not abort if flex/lex is missing

[Nicodemo Alvaro-3]

URL:
  <http://savannah.nongnu.org/bugs/?25804>

                 Summary: configure script does not abort if flex/lex is
missing
                 Project: AVR Downloader/UploaDEr
            Submitted by: stahlberg
            Submitted on: Mon 09 Mar 2009 09:28:49 PM GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Dan Ståhlberg
        Originator Email:
             Open/Closed: Open
         Discussion Lock: Any

    _______________________________________________________

Details:

On SUSE 11.1, logged in as root, using BASH-3.2.

Downloaded and extracted AVRDUDE-5.6.

The configure script reports that flex/lex is missing but does not abort.
This is easy to miss.

checking dependency style of gcc... gcc3
checking for a BSD-compatible install... /usr/bin/install -c
checking for bison... bison -y
*checking for flex... no*
*checking for lex... no*
checking for ranlib... ranlib
checking for tputs in -ltermcap... no
checking for tputs in -lncurses... yes
checking for readline in -lreadline... yes

Running make afterwards gives an error that is hard to figure out:

sed '/^#/ s|y\.tab\.c|config_gram.c|' y.tab.c >config_gram.ct && mv
config_gram.ct config_gram.c
rm -f y.tab.c
if gcc -DHAVE_CONFIG_H -I. -I. -I.  -DCONFIG_DIR=\"/usr/local/etc\"  -Wall -g
-O2 -MT libavrdude_a-config_gram.o -MD -MP -MF
".deps/libavrdude_a-config_gram.Tpo" -c -o libavrdude_a-config_gram.o `test -f
'config_gram.c' || echo './'`config_gram.c; \
   then mv -f ".deps/libavrdude_a-config_gram.Tpo"
".deps/libavrdude_a-config_gram.Po"; else rm -f
".deps/libavrdude_a-config_gram.Tpo"; exit 1; fi
config_gram.y: In function ‘parse_cmdbits’:
config_gram.y:1373: warning: ‘brkt’ may be used uninitialized in this
function
:   lexer.l
sed '/^#/ s|\.c|lexer.c|' .c >lexer.c
*sed: can't read .c: No such file or directory*
*make[2]: *** [lexer.c] Error 2*
make[2]: Leaving directory `/root/avrdude-5.6'




    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/bugs/?25804>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.nongnu.org/



_______________________________________________
avrdude-dev mailing list
avrdude-dev@...
http://lists.nongnu.org/mailman/listinfo/avrdude-dev

[Nicodemo Alvaro-3]

Update of bug #25804 (project avrdude):

                Priority:              5 - Normal => 3 - Low                
                  Status:                    None => Need Info              
             Assigned to:                    None => joerg_wunsch          

    _______________________________________________________

Follow-up Comment #1:

Alas, AC_PROG_LEX and AC_PROG_YACC do only check for the
possible alternatives (flex vs. lex, bison vs. byacc vs. yacc),
without any real option to bail out if none of them has been
found.

It's not really easy to extend that check without duplicating
much of the code of these macros.  Ideally, this should be
filed as a feature request to project autoconf so these
macros would optionally allow for code to be run if none of
the tools had been found.

Would you be willing in filing such a feature request?

    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/bugs/?25804>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.nongnu.org/



_______________________________________________
avrdude-dev mailing list
avrdude-dev@...
http://lists.nongnu.org/mailman/listinfo/avrdude-dev