[MacPorts] #48213: tcpxtract @1.0.1_0: doesn't link with system lex on newer systems (was: tcpxtract 1.0.1: build failure with bison 3)

[MacPorts]

#48213: tcpxtract @1.0.1_0: doesn't link with system lex on newer systems
------------------------+---------------------------------------------
  Reporter:  ionic@…    |      Owner:  jul_bsd@…
      Type:  defect     |     Status:  closed
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:  fixed      |   Keywords:  mountainlion mavericks yosemite
      Port:  tcpxtract  |
------------------------+---------------------------------------------
Changes (by larryv@…):

 * status:  new => closed
 * keywords:   => mountainlion mavericks yosemite
 * resolution:   => fixed


Comment:

 This doesn’t have anything to do with Bison 3.

 The configure phase detects the system’s libl.a, but for some reason it
 doesn’t tell the build to link with `-ll`.
 {{{
 :info:build ccache /usr/bin/clang -D_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
 -pipe -Os -arch x86_64  -L/opt/local/lib -Wl,-headerpad_max_install_names
 -arch x86_64 -o tcpxtract  tcpxtract.o sessionlist.o util.o confy.o
 confl.o conf.o search.o extract.o  -lpcap
 :info:build Undefined symbols for architecture x86_64:
 :info:build   "_yywrap", referenced from:
 :info:build       _yylex in confl.o
 :info:build ld: symbol(s) not found for architecture x86_64
 :info:build clang: error: linker command failed with exit code 1 (use -v
 to see invocation)
 }}}

 I don’t know why this worked on the Snow Leopard and Lion buildslaves, but
 we shouldn’t allow the build to use the system libl.a anyway. Oddly, it
 adds `-lfl` correctly when it detects our flex.
 {{{
 :info:build ccache /usr/bin/clang -D_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
 -pipe -Os -arch x86_64  -L/opt/local/lib -Wl,-headerpad_max_install_names
 -arch x86_64 -o tcpxtract  tcpxtract.o sessionlist.o util.o confy.o
 confl.o conf.o search.o extract.o  -lpcap -lfl
 }}}

 r138169

-- 
Ticket URL: <https://trac.macports.org/ticket/48213#comment:1>
MacPorts <https://www.macports.org/>
Ports system for OS X