gistfile1.txt

❯ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.14.2
BuildVersion:	18C54

❯ /usr/bin/perl -V
Summary of my perl5 (revision 5 version 18 subversion 2) configuration:

  Platform:
    osname=darwin, osvers=18.0, archname=darwin-thread-multi-2level
    uname='darwin osx337.sd.apple.com 18.0 darwin kernel version 17.0.0: fri may 4 10:33:38 pdt 2018; root:xnu-4570.1.46.100.2~1development_x86_64 x86_64 '
    config_args='-ds -e -Dprefix=/usr -Dccflags=-g  -pipe  -Dldflags= -Dman3ext=3pm -Duseithreads -Duseshrplib -Dinc_version_list=none -Dcc=cc'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags =' -g -pipe -fno-common -DPERL_DARWIN -fno-strict-aliasing -fstack-protector',
    optimize='-Os',
    cppflags='-g -pipe -fno-common -DPERL_DARWIN -fno-strict-aliasing -fstack-protector'
    ccversion='', gccversion='4.2.1 Compatible Apple LLVM 10.0.0 (clang-1000.0.42)', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    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'
    libpth=/usr/lib /usr/local/lib
    libs=
    perllibs=
    libc=, so=dylib, useshrplib=true, libperl=libperl.dylib
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=bundle, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags=' -bundle -undefined dynamic_lookup -fstack-protector'


Characteristics of this binary (from libperl):
  Compile-time options: HAS_TIMES MULTIPLICITY PERLIO_LAYERS
                        PERL_DONT_CREATE_GVSV
                        PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
                        PERL_PRESERVE_IVUV PERL_SAWAMPERSAND USE_64_BIT_ALL
                        USE_64_BIT_INT USE_ITHREADS USE_LARGE_FILES
                        USE_LOCALE USE_LOCALE_COLLATE USE_LOCALE_CTYPE
                        USE_LOCALE_NUMERIC USE_PERLIO USE_PERL_ATOF
                        USE_REENTRANT_API
  Locally applied patches:
	/Library/Perl/Updates/<version> comes before system perl directories
	installprivlib and installarchlib points to the Updates directory
  Built under darwin
  Compiled at Aug 17 2018 17:29:08
  @INC:
    /Library/Perl/5.18/darwin-thread-multi-2level
    /Library/Perl/5.18
    /Network/Library/Perl/5.18/darwin-thread-multi-2level
    /Network/Library/Perl/5.18
    /Library/Perl/Updates/5.18.2
    /System/Library/Perl/5.18/darwin-thread-multi-2level
    /System/Library/Perl/5.18
    /System/Library/Perl/Extras/5.18/darwin-thread-multi-2level
    /System/Library/Perl/Extras/5.18
    .
    
❯ grep withsysroot /System/Library/Perl -r
/System/Library/Perl/5.18/ExtUtils/CBuilder/Base.pm:     push (@args, "-iwithsysroot");
/System/Library/Perl/5.18/ExtUtils/Embed.pm:    my_return(" -iwithsysroot $dir ");
/System/Library/Perl/5.18/ExtUtils/MM_Unix.pm:    my $flags   = '$(CCCDLFLAGS) -iwithsysroot "$(PERL_INC)" $(PASTHRU_DEFINE) $(DEFINE)';
/System/Library/Perl/5.18/ExtUtils/MM_Unix.pm:	$(CCCMD) $(CCCDLFLAGS) -iwithsysroot "$(PERL_INC)" $(PASTHRU_DEFINE) $(DEFINE) $*.c
/System/Library/Perl/Extras/5.18/ExtUtils/Depends.pm:		inc      => (($instpath =~ /^\/System\/Library\/Perl\//) ? "-iwithsysroot " : "-I")."$instpath ".${"$depinstallfiles\::inc"},