[MacPorts] #61197: R @4.0.2: configure hangs under trace mode

[MacPorts]

#61197: R @4.0.2: configure hangs under trace mode
---------------------------+-----------------------
  Reporter:  chrstphrchvz  |      Owner:  kjellpk
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.6.3
Resolution:                |   Keywords:  tracemode
      Port:  R             |
---------------------------+-----------------------

Comment (by chrstphrchvz):

 Disabling ccache made no difference.

 The configure script is hanging at line 19590:
 {{{
 eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
 }}}

 Setting `configure.cmd sh -vx ./configure`, and inserting `echo 19590` at
 line 19590, the few lines of output before it gets stuck:
 {{{
   fi # test -n "$compiler"

   GCC=$lt_save_GCC
   CC=$lt_save_CC
   CFLAGS=$lt_save_CFLAGS
 fi # test yes != "$_lt_disable_FC"
 + test yes '!=' ''
 + lt_simple_compile_test_code='      subroutine t
       return
       end
 '
 + lt_simple_link_test_code='      program t
       end
 '
 + LTCC=/usr/bin/clang
 + LTCFLAGS='-pipe -Os
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk -arch
 x86_64'
 + compiler=/usr/bin/clang
 + ac_outfile=conftest.o
 + echo '      subroutine t
       return
       end
 '
 + eval '$FC -c $FCFLAGS $ac_fcflags_srcext conftest.$ac_ext >&5'
 + /usr/bin/sed '/^$/d; /^ *+/d'
 cat conftest.err
 ++ cat conftest.err
 + _lt_compiler_boilerplate='$FC -c $FCFLAGS $ac_fcflags_srcext
 conftest.$ac_ext >&5'
 + rm -f conftest.a conftest.b conftest.err conftest.f conftest.o
 + ac_outfile=conftest.o
 + echo '      program t
       end
 '
 + echo 19590
 19590
 + eval '$FC -o conftest$ac_exeext $FCFLAGS $LDFLAGS $ac_fcflags_srcext
 conftest.$ac_ext $LIBS >&5'
 + /usr/bin/sed '/^$/d; /^ *+/d'
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/61197#comment:1>
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