Re: Can't compile svn

[David Fifield <david () bamsoftware com>]

On Mon, Jul 20, 2009 at 10:59:34PM -0700, rilian4 rilian4 wrote:
> I was able to compile the stable source at work fine several times but
> at home, where I am not blocked from getting the latest svn, I checked
> out the main trunk and after executing ./configure successfully, I am
> getting the following ending in failure of make in the ncat section. I
> googled the error message and it said to install flex and bison
> libraries, which I did, but I still get the same error on make. I did
> a make distclean before the output seen below. Is there a master
> package I am missing? The last version I successfully compiled on this
> box was 4.85BETA7.
>
> ../libpcap/libpcap.a(gencode.o): In function `pcap_compile':
> /home/netadmin/installs/svn/nmap/libpcap/./gencode.c:382: undefined
> reference to `lex_init'
> /home/netadmin/installs/svn/nmap/libpcap/./gencode.c:401: undefined
> reference to `lex_cleanup'
> /home/netadmin/installs/svn/nmap/libpcap/./gencode.c:368: undefined
> reference to `lex_cleanup'
> ../libpcap/libpcap.a(grammar.o): In function `yyparse':
> /home/netadmin/installs/svn/nmap/libpcap/y.tab.c:897: undefined
> reference to `yylex'
> /home/netadmin/installs/svn/nmap/libpcap/y.tab.c:1789: undefined
> reference to `yylex'
> collect2: ld returned 1 exit status
> make[1]: *** [ncat] Error 1
> make[1]: Leaving directory `/home/netadmin/installs/svn/nmap/ncat'
> make: *** [ncat_build] Error 2

I'm not sure exactly what the problem is but I have seen it before. I
suspect it is caused by Subversion changing the timestamps of
checked-out files, causing files to be rebuilt that don't need to be.
Sometimes what fixes it for me is

        svn revert -R libpcap/

If that doesn't work, try reverting as above and then

        touch libpcap/gencode.c

David Fifield

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