i am having issue since ElCapitan and now on Sierra to install youtube-viewer with System Perl (5.18.2)´subversion 2

this problem occurs always when doing "sudo ./Build installdeps"

  CPAN.pm: Building H/HA/HAYASHI/Term-ReadLine-Gnu-1.35.tar.gz

Found `/usr/lib/libtermcap.dylib'.
cc  -arch x86_64 -arch i386 -g -pipe -fno-common -DPERL_DARWIN -fno-st
+rict-aliasing -fstack-protector -DHAVE_STRING_H rlver.c -o rlver   -a
+rch x86_64 -arch i386 -fstack-protector -lreadline -ltermcap
xcrun: error: invalid active developer path (/Library/Developer/Comman
+dLineTools), missing xcrun at: /Library/Developer/CommandLineTools/us
+r/bin/xcrun
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!!
Could not compile rlver.c.

system(): Inappropriate ioctl for device

If you have installed the GNU Readline Library (libreadline.{a,so} and
readline/readline.h, etc.) on directories for which your perl is not
configured to search (refer the value of `ccflags' and `libpath' in
the output of `perl -V'), specify the paths as follows;

    perl Makefile.PL --includedir=/yourdir/include --libdir=/yourdir/l
+ib
or
    perl Makefile.PL --prefix=/yourdir

Note that the GNU Readline Library version 2.0 and earlier causes erro
+r
here.  Update it to version 2.1 and/or later.

Read INSTALL for more details.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!!
Warning: No success on command[/usr/bin/perl Makefile.PL]
  HAYASHI/Term-ReadLine-Gnu-1.35.tar.gz
  /usr/bin/perl Makefile.PL -- NOT OK
Running make test
  Make had some problems, won't test
Running make install
  Make had some problems, won't install
Could not read metadata file. Falling back to other methods to determi
+ne prerequisites
[download]

also when i resort to perlbrew, i am having issues; no problems of this sort on Mavericks, or Yosemite.

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