Bug#397591: marked as done (problems linking with -lfl option)

[Debian Bug Tracking System]

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with message-id <[EMAIL PROTECTED]>
and subject line Bug#397591: problems linking with -lfl option
has caused the attached Bug report to be marked as done.

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--- Begin Message ---

Subject: problems linking with -lfl option
Package: flex-old
Version: 2.5.4a-7
Severity: normal

I have the following file:

%option  noyywrap
%{
int voc,con;
%}
%%
a|e|i|o|u       voc++;
[a-z]           con++;
.               ;
%%
int main(){
       yylex();
       printf("voc: %3d   con: %3d\n",voc,con);
}

just a simple example... if I do

 flex file.l; gcc lex.yy.c

everything is ok, but if i remove the

 %option  noyywrap

directive, and do

 flex file.l; gcc -lfl lex.yy.c

I get these errors:

/tmp/ccgksxij.o: In function `main':
lex.yy.c:(.text+0xfdd): multiple definition of `main'
/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/libfl.a(libmain.o):/home/srivasta/flex-old-2.5.4a/libmain.c:10:
first defined here
/usr/bin/ld: Warning: size of symbol `main' changed from 27 in
/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/libfl.a(libmain.o) to 62 in
/tmp/ccgksxij.o
/tmp/ccgksxij.o: In function `yylex':
lex.yy.c:(.text+0x341): undefined reference to `yywrap'
/tmp/ccgksxij.o: In function `input':
lex.yy.c:(.text+0xaeb): undefined reference to `yywrap'
collect2: ld returned 1 exit status

I have the same problem with flex package.

Greetings
Paolo Pantaleo









-- System Information:
Debian Release: testing/unstable
 APT prefers testing
 APT policy: (800, 'testing'), (70, 'stable'), (60, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-2-k7
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8)

Versions of packages flex-old depends on:
ii  libc6                        2.3.6.ds1-7 GNU C Library: Shared libraries

Versions of packages flex-old recommends:
ii  gcc [c-compiler]              4:4.1.1-13 The GNU C compiler
ii  gcc-4.0 [c-compiler]          4.0.3-3    The GNU C compiler
ii  gcc-4.1 [c-compiler]          4.1.1-19   The GNU C compiler

-- no debconf information

--- End Message ---

--- Begin Message ---

Hi,

        Well, it works for me, with both flex and flex-old, on Sid.

,----
| __> cat filter.l
| %{
| int voc,con;
| %}
| %%
| a|e|i|o|u       voc++;
| [a-z]           con++;
| .               ;
| %%
| int main(){
|         yylex();
|         printf("voc: %3d   con: %3d\n",voc,con);
| }
`----
,----[ flex           2.5.33-10 ]
| __> flex filter.l;   
| __> gcc lex.yy.c -lfl
| __> ./a.out< filter.l
| voc:  20   con:  35
`----
,----[ flex-old       2.5.4a-7 ]
| [EMAIL PROTECTED]:~$ flex filter.l;   
| [EMAIL PROTECTED]:~$ gcc lex.yy.c -lfl
| [EMAIL PROTECTED]:~$ ./a.out< filter.l
| voc:  20   con:  35
`----

        I think your problem is that you tried:
% gcc -lfl lex.yy.c
        instead of
% gcc lex.yy.c -lfl
        which indeed bombs out.

        manoj
--
Matz's Law: A conclusion is the place where you got tired of thinking.
Manoj Srivastava <[EMAIL PROTECTED]> <http://www.golden-gryphon.com/>
1024D/BF24424C print 4966 F272 D093 B493 410B  924B 21BA DABB BF24 424C

--- End Message ---