[MacPorts] #60204: libidn2 fails to build due to nm

[MacPorts]

#60204: libidn2 fails to build due to nm
----------------------+---------------------
 Reporter:  rmottola  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:  leopard   |       Port:  libidn2
----------------------+---------------------
 Libidn2 fails to build on Leopard - 10.5
 {{{
 al/lib ../gl/libgnu.la  -lunistring
 libtool: link: /usr/bin/nm -p  .libs/idna.o .libs/lookup.o .libs/decode.o
 .libs/register.o .libs/bidi.o .libs/version.o .libs/error.o
 .libs/puny_encode.o .libs/puny_decode.o .libs/free.o .libs/data.o
 .libs/tr46map.o .libs/tables.o .libs/context.o   ../gl/.libs/libgnu.a |  |
 /usr/bin/sed 's/.* //' | sort | uniq > .libs/libidn2.exp
 ../libtool: eval: line 1720: syntax error near unexpected token `|'
 ../libtool: eval: line 1720: `/usr/bin/nm -p  .libs/idna.o .libs/lookup.o
 .libs/decode.o .libs/register.o .libs/bidi.o .libs/version.o .libs/error.o
 .libs/puny_encode.o .libs/puny_decode.o .libs/free.o .libs/data.o
 .libs/tr46map.o .libs/tables.o .libs/context.o   ../gl/.libs/libgnu.a |  |
 /usr/bin/sed 's/.* //' | sort | uniq > .libs/libidn2.exp'
 make[3]: *** [libidn2.la] Error 1

 }}}

 this is due to old nm being used. I applied a fix proposed by @kencu in
 another port and it works:

 {{{
 if {${os.platform} eq "darwin" && ${os.major} < 10} {
     depends_build-append port:cctools
     configure.env-append NM=${prefix}/bin/nm
     configure.args-append lt_cv_path_NM=${prefix}/bin/nm
 }

 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/60204>
MacPorts <https://www.macports.org/>
Ports system for macOS