From @jkeenan

It has been reported that commit
0740a29 broke Devel​::NYTProf. (I'm
currently bisecting to double-confirm the breaking point.)

#####
CommitDate​: Tue Dec 5 01​:21​:35 2017

stop using &PL_sv_yes as no-op method

  Method lookup yields a fake method for ->import or ->unimport if
there's actual method, for historical reasons so that "use" doesn't
barf if there's no import method. This fake method used to be
&PL_sv_yes being used as a magic placeholder, recognised specially by
pp_entersub. But &PL_sv_yes is a string, which we'd expect to serve as
a symbolic CV ref. Change method lookup to yield an actual CV with a
body in this case, and remove the special case from pp_entersub. This
fixes the remaining part of [perl #126042].
#####

This was reported by Zefram in
https://rt.cpan.org/Ticket/Display.html?id=123846 and receipt
acknowledged by author Tim Bunce. A report was subsequently filed by
simcop2387 in the module's preferred bug tracker at
timbunce/devel-nytprof#113 and confirmed in
that issue by me for perl-5.27.9 on Feb 21.

In order to show both the warnings and the test failures I'm attaching
another recent attempt to build that module. (The perl_V.txt is recent
but not from that same attempt; it's just to make RT happier.)

Thank you very much.
Jim Keenan

From @jkeenan

devel-nytprof.warnings.failures.txt

From @jkeenan

Summary of my perl5 (revision 5 version 27 subversion 10) configuration​:
  Commit id​: f0282de
  Platform​:
  osname=linux
  osvers=4.4.0-112-generic
  archname=x86_64-linux
  uname='linux zareason 4.4.0-112-generic #135-ubuntu smp fri jan 19 11​:48​:36 utc 2018 x86_64 x86_64 x86_64 gnulinux '
  config_args='-des -Dusedevel'
  hint=recommended
  useposix=true
  d_sigaction=define
  useithreads=undef
  usemultiplicity=undef
  use64bitint=define
  use64bitall=define
  uselongdouble=undef
  usemymalloc=n
  default_inc_excludes_dot=define
  bincompat5005=undef
  Compiler​:
  cc='cc'
  ccflags ='-fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
  optimize='-O2'
  cppflags='-fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include'
  ccversion=''
  gccversion='5.4.1 20160904'
  gccosandvers=''
  intsize=4
  longsize=8
  ptrsize=8
  doublesize=8
  byteorder=12345678
  doublekind=3
  d_longlong=define
  longlongsize=8
  d_longdbl=define
  longdblsize=16
  longdblkind=3
  ivtype='long'
  ivsize=8
  nvtype='double'
  nvsize=8
  Off_t='off_t'
  lseeksize=8
  alignbytes=8
  prototype=define
  Linker and Libraries​:
  ld='cc'
  ldflags =' -fstack-protector-strong -L/usr/local/lib'
  libpth=/usr/local/lib /usr/lib/gcc/x86_64-linux-gnu/5/include-fixed /usr/include/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib /lib64 /usr/lib64
  libs=-lpthread -lnsl -ldb -ldl -lm -lcrypt -lutil -lc
  perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
  libc=libc-2.23.so
  so=so
  useshrplib=false
  libperl=libperl.a
  gnulibc_version='2.23'
  Dynamic Linking​:
  dlsrc=dl_dlopen.xs
  dlext=so
  d_dlsymun=undef
  ccdlflags='-Wl,-E'
  cccdlflags='-fPIC'
  lddlflags='-shared -O2 -L/usr/local/lib -fstack-protector-strong'

Characteristics of this binary (from libperl)​:
  Compile-time options​:
  HAS_TIMES
  PERLIO_LAYERS
  PERL_COPY_ON_WRITE
  PERL_DONT_CREATE_GVSV
  PERL_MALLOC_WRAP
  PERL_OP_PARENT
  PERL_PRESERVE_IVUV
  PERL_USE_DEVEL
  USE_64_BIT_ALL
  USE_64_BIT_INT
  USE_LARGE_FILES
  USE_LOCALE
  USE_LOCALE_COLLATE
  USE_LOCALE_CTYPE
  USE_LOCALE_NUMERIC
  USE_LOCALE_TIME
  USE_PERLIO
  USE_PERL_ATOF
  Built under linux
  Compiled at Mar 20 2018 17​:28​:52
  %ENV​:
  PERL2DIR="/home/jkeenan/gitwork/perl2"
  PERLBREW_BASHRC_VERSION="0.78"
  PERLBREW_HOME="/home/jkeenan/.perlbrew"
  PERLBREW_MANPATH="/home/jkeenan/perl5/perlbrew/perls/perl-5.26.0/man"
  PERLBREW_PATH="/home/jkeenan/perl5/perlbrew/bin​:/home/jkeenan/perl5/perlbrew/perls/perl-5.26.0/bin"
  PERLBREW_PERL="perl-5.26.0"
  PERLBREW_ROOT="/home/jkeenan/perl5/perlbrew"
  PERLBREW_VERSION="0.78"
  PERL_WORKDIR="/home/jkeenan/gitwork/perl"
  @​INC​:
  lib
  /usr/local/lib/perl5/site_perl/5.27.10/x86_64-linux
  /usr/local/lib/perl5/site_perl/5.27.10
  /usr/local/lib/perl5/5.27.10/x86_64-linux
  /usr/local/lib/perl5/5.27.10

From @jkeenan

On Wed, 21 Mar 2018 21​:28​:04 GMT, jkeenan@​pobox.com wrote​:

It has been reported that commit
0740a29 broke Devel​::NYTProf. (I'm
currently bisecting to double-confirm the breaking point.)

Breakage point confirmed by bisection​:
0740a29 is the first bad commit

--
James E Keenan (jkeenan@​cpan.org)

From [Unknown Contact. See original ticket]

On Wed, 21 Mar 2018 21​:28​:04 GMT, jkeenan@​pobox.com wrote​:

It has been reported that commit
0740a29 broke Devel​::NYTProf. (I'm
currently bisecting to double-confirm the breaking point.)

Breakage point confirmed by bisection​:
0740a29 is the first bad commit

--
James E Keenan (jkeenan@​cpan.org)

From @jkeenan

On Thu, 22 Mar 2018 02​:49​:54 GMT, jkeenan wrote​:

On Wed, 21 Mar 2018 21​:28​:04 GMT, jkeenan@​pobox.com wrote​:

It has been reported that commit
0740a29 broke Devel​::NYTProf. (I'm
currently bisecting to double-confirm the breaking point.)

Breakage point confirmed by bisection​:
0740a29 is the first bad commit

TIMB is on the case!

--
James E Keenan (jkeenan@​cpan.org)

The RT System itself - Status changed from 'new' to 'open'

@iabyn - Status changed from 'open' to 'resolved'

From @jkeenan

On Fri, 23 Mar 2018 21​:34​:49 GMT, jkeenan wrote​:

On Thu, 22 Mar 2018 02​:49​:54 GMT, jkeenan wrote​:

On Wed, 21 Mar 2018 21​:28​:04 GMT, jkeenan@​pobox.com wrote​:

It has been reported that commit
0740a29 broke Devel​::NYTProf. (I'm
currently bisecting to double-confirm the breaking point.)

Breakage point confirmed by bisection​:
0740a29 is the first bad commit

TIMB is on the case!

Confirmation of the correction uploaded to CPAN overnight​:

#####
$ ./bin/perl -v | head -2 | tail -1
This is perl 5, version 27, subversion 11 (v5.27.11 (v5.27.10-19-ge771953)) built for x86_64-linux-thread-multi
$ ./bin/cpanm Devel​::NYTProf
...
Building and testing Algorithm-Diff-1.1903 ... OK
Successfully installed Algorithm-Diff-1.1903
Building and testing Text-Diff-1.45 ... OK
Successfully installed Text-Diff-1.45
Building and testing Test-Differences-0.64 ... OK
Successfully installed Test-Differences-0.64
Building and testing Devel-NYTProf-6.05 ... OK
Successfully installed Devel-NYTProf-6.05
4 distributions installed
#####

Thank you very much.
--
James E Keenan (jkeenan@​cpan.org)