libpcap won't compile with MacPorts' flex

[tsunanet@…]

Hi there, if you install flex from MacPorts and then try to install libpcap, the compilation will fail due to flex version mismatch:

/usr/bin/gcc-4.0 -dynamiclib -o libpcap.`cat VERSION`.dylib \
        -install_name /opt/local/lib/libpcap.0.dylib \
        -compatibility_version 1.0.0 -current_version `cat VERSION` \
        pcap-bpf.o fad-getad.o pcap.o inet.o gencode.o optimize.o nametoaddr.o etherent.o savefile.o bpf_filter.o bpf_image.o bpf_dump.o  scanner.o grammar.o version.o  
ld: Undefined symbols:
_lex_cleanup
_lex_init
_pcap_lex
/usr/libexec/gcc/i686-apple-darwin8/4.0.1/libtool: internal link edit command failed
make: *** [libpcap.dylib] Error 1
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_net_libpcap/work/libpcap-0.9.8" && make all " returned error 2
Command output: scanner.l:88: bad character: 7
scanner.l:88: bad character: 6
scanner.l:88: bad character: 0
scanner.l:88: bad character: 0
scanner.l:89: bad character: %
scanner.l:89: unknown error processing section 1
scanner.l:89: bad character: 2
scanner.l:89: bad character: 0
scanner.l:89: bad character: 0
scanner.l:89: bad character: 0
[...]
/usr/bin/gcc-4.0 -dynamiclib -o libpcap.`cat VERSION`.dylib \
        -install_name /opt/local/lib/libpcap.0.dylib \
        -compatibility_version 1.0.0 -current_version `cat VERSION` \
        pcap-bpf.o fad-getad.o pcap.o inet.o gencode.o optimize.o nametoaddr.o etherent.o savefile.o bpf_filter.o bpf_image.o bpf_dump.o  scanner.o grammar.o version.o  
ld: Undefined symbols:
_lex_cleanup
_lex_init
_pcap_lex
/usr/libexec/gcc/i686-apple-darwin8/4.0.1/libtool: internal link edit command failed
make: *** [libpcap.dylib] Error 1

The workaround is to ensure that /usr/bin/flex is invoked (probably by passing LEX=/usr/bin/flex to configure or something).

[jmroot (Joshua Root)]

Cc maintainer.

[(none)]

Milestone Port Bugs deleted

[ryandesign (Ryan Carsten Schmidt)]

This does not appear to be a problem with flex @2.5.35_0 and libpcap @1.0.0_1 anymore.