From @bingos

Using -Dcc=c++ on FreeBSD 10.2-RELEASE produces a perl without dynamic loading.

I went through the Configure dialogues by hand and prompting [n] when asking if one wishes to use dynamic loading.

c++ on FreeBSD is Clang

$ c++ -v
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
Target​: x86_64-unknown-freebsd10.2
Thread model​: posix
Selected GCC installation​:

I ran Configure using ktrace and found the following error when it was trying to find dlopen

try-b77b54.o​: relocation R_X86_64_32 against `dlopen' can not be used when making a shared object; recompile with -fPIC"

So -fPIC is needed as well as -shared is my guess.

Summary of my perl5 (revision 5 version 22 subversion 0) configuration​:

  Platform​:
  osname=freebsd, osvers=10.2-release, archname=amd64-freebsd
  uname='freebsd canker 10.2-release freebsd 10.2-release #0 r286666​: wed aug 12 15​:26​:37 utc 2015 root@​releng1.nyi.freebsd.org​:usrobjusrsrcsysgeneric amd64 '
  config_args='-des -Uinstallusrbinperl -Dprefix=/opt/perl-5.22.0++ -Dcc=c++'
  hint=recommended, useposix=true, d_sigaction=define
  useithreads=undef, usemultiplicity=undef
  use64bitint=define, use64bitall=define, uselongdouble=undef
  usemymalloc=n, bincompat5005=undef
  Compiler​:
  cc='c++', ccflags ='-DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -I/usr/local/include -D_FORTIFY_SOURCE=2',
  optimize='-O',
  cppflags='-DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -I/usr/local/include'
  ccversion='', gccversion='4.2.1 Compatible FreeBSD Clang 3.4.1 (tags/RELEASE_34/dot1-final 208032)', 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='ld', ldflags ='-Wl,-E -L/usr/local/lib'
  libpth=/usr/lib /usr/local/lib /usr/include/c++/v1 /usr/include/clang/3.4.1 /usr/lib
  libs=-lpthread -lgdbm -lm -lcrypt -lutil -lc
  perllibs=-lpthread -lgdbm -lm -lcrypt -lutil -lc
  libc=, so=so, useshrplib=false, libperl=libperl.a
  gnulibc_version=''
  Dynamic Linking​:
  dlsrc=dl_none.xs, dlext=none, d_dlsymun=undef, ccdlflags=''
  cccdlflags='-DPIC -fPIC', lddlflags=''

Characteristics of this binary (from libperl)​:
  Compile-time options​: HAS_TIMES PERLIO_LAYERS PERL_DONT_CREATE_GVSV
  PERL_HASH_FUNC_ONE_AT_A_TIME_HARD PERL_MALLOC_WRAP
  PERL_NEW_COPY_ON_WRITE PERL_PRESERVE_IVUV
  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 freebsd
  Compiled at Aug 20 2015 18​:30​:42
  @​INC​:
  /opt/perl-5.22.0++/lib/site_perl/5.22.0/amd64-freebsd
  /opt/perl-5.22.0++/lib/site_perl/5.22.0
  /opt/perl-5.22.0++/lib/5.22.0/amd64-freebsd
  /opt/perl-5.22.0++/lib/5.22.0

From vano@mail.mipt.ru

Using -Dcc=c++ on FreeBSD 10.2-RELEASE produces a perl without dynamic loading.

I went through the Configure dialogues by hand and prompting [n]
when asking if one wishes to use dynamic loading.

c++ on FreeBSD is Clang

$ c++ -v
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
Target​: x86_64-unknown-freebsd10.2
Thread model​: posix
Selected GCC installation​:

I ran Configure using ktrace and found the following error when it was trying to find dlopen

try-b77b54.o​: relocation R_X86_64_32 against `dlopen' can not be
used when making a shared object; recompile with -fPIC"

So -fPIC is needed as well as -shared is my guess.

Not a bug. Configure cannot guess flags for every random
compiler/linker, it's only supposed to provide correct defaults for
those specified in `hints/<OS>.sh'.
(It doesn't guess them at all. They are
right there in the hints, too).

If you need anything different, you need to specify them by hand
with -Dccflags or -Dldflags/-Dlddlflags
or in the corresponding question in interactive mode.

--
Regards,
Ivan Pozdeev

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

From @bingos

This was fixed by http​://perl5.git.perl.org/perl.git/commitdiff/f8fbb01c4686d7e4393ba90b2e1326e9536d9107

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