[MacPorts] #67658: svndigest @0.11: Segmentation fault

[MacPorts]

#67658: svndigest @0.11: Segmentation fault
------------------------+-----------------------
 Reporter:  ryandesign  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.8.1
 Keywords:  lion        |       Port:  svndigest
------------------------+-----------------------
 svndigest @0.11 fails to build on Mac OS X 10.7.x only, because it tries
 to run each of the three executables during the build, and they crash:

 https://patch-
 diff.githubusercontent.com/raw/KhronosGroup/glslang/pull/3243.diff

 {{{
 sh: line 1: 93257 Segmentation fault: 11  bin/svncopyright --help 2>
 /dev/null
 help2man: can't get `--help' info from bin/svncopyright
 Try `--no-discard-stderr' if option outputs to stderr
 make[1]: *** [man/svncopyright.1] Error 139
 make[1]: *** Waiting for unfinished jobs....
 sh: line 1: 93256 Segmentation fault: 11  bin/svndigest-copy-cache --help
 2> /dev/null
 help2man: can't get `--help' info from bin/svndigest-copy-cache
 Try `--no-discard-stderr' if option outputs to stderr
 make[1]: *** [man/svndigest-copy-cache.1] Error 139
 sh: line 1: 93255 Segmentation fault: 11  bin/svndigest --help 2>
 /dev/null
 help2man: can't get `--help' info from bin/svndigest
 Try `--no-discard-stderr' if option outputs to stderr
 make[1]: *** [man/svndigest.1] Error 139
 }}}

 The crash logs show:

 {{{
 Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
 0   libc++.1.dylib                      0x0000000101433201
 std::__1::basic_ostream<char, std::__1::char_traits<char>
 >::sentry::sentry(std::__1::basic_ostream<char,
 std::__1::char_traits<char> >&) + 19
 1   svndigest                           0x00000001011312f6
 std::__1::basic_ostream<char, std::__1::char_traits<char> >&
 std::__1::__put_character_sequence<char, std::__1::char_traits<char>
 >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char
 const*, unsigned long) + 38
 2   svndigest                           0x000000010113f1dc
 theplu::yat::utility::ColumnStream::print(std::__1::basic_stringstream<char,
 std::__1::char_traits<char>, std::__1::allocator<char> >&) + 150
 3   svndigest                           0x0000000101140f74
 theplu::yat::utility::ColumnStream& theplu::yat::utility::operator<<
 <std::__1::basic_string<char, std::__1::char_traits<char>,
 std::__1::allocator<char> > >(theplu::yat::utility::ColumnStream&,
 std::__1::basic_string<char, std::__1::char_traits<char>,
 std::__1::allocator<char> > const&) + 88
 4   svndigest                           0x0000000101140e63
 theplu::yat::utility::operator<<(std::__1::basic_ostream<char,
 std::__1::char_traits<char> >&, theplu::yat::utility::CommandLine const&)
 + 546
 5   svndigest                           0x0000000101143678
 theplu::yat::utility::OptionHelp::do_parse2(std::__1::__wrap_iter<std::__1::basic_string<char,
 std::__1::char_traits<char>, std::__1::allocator<char> >*>,
 std::__1::__wrap_iter<std::__1::basic_string<char,
 std::__1::char_traits<char>, std::__1::allocator<char> >*>) + 264
 6   svndigest                           0x00000001011438d2
 theplu::yat::utility::OptionSwitch::do_parse(std::__1::__wrap_iter<std::__1::basic_string<char,
 std::__1::char_traits<char>, std::__1::allocator<char> >*>&,
 std::__1::__wrap_iter<std::__1::basic_string<char,
 std::__1::char_traits<char>, std::__1::allocator<char> >*> const&) + 182
 7   svndigest                           0x0000000101140459
 theplu::yat::utility::CommandLine::parse_long(std::__1::__wrap_iter<std::__1::basic_string<char,
 std::__1::char_traits<char>, std::__1::allocator<char> >*>&,
 std::__1::__wrap_iter<std::__1::basic_string<char,
 std::__1::char_traits<char>, std::__1::allocator<char> >*>&) + 435
 8   svndigest                           0x0000000101140216
 theplu::yat::utility::CommandLine::parse(std::__1::__wrap_iter<std::__1::basic_string<char,
 std::__1::char_traits<char>, std::__1::allocator<char> >*>&,
 std::__1::__wrap_iter<std::__1::basic_string<char,
 std::__1::char_traits<char>, std::__1::allocator<char> >*>&) + 134
 9   svndigest                           0x000000010113fdbe
 theplu::yat::utility::CommandLine::parse(int, char**) + 684
 10  svndigest                           0x00000001010f6233
 theplu::svndigest::AbstractParameter::parse(int, char**) + 39
 11  svndigest                           0x00000001010f8371 main + 49
 12  svndigest                           0x00000001010f5344 start + 52
 }}}

 Mac OS X 10.7 was the first version to include libc++. It's possible it
 has a bug that was fixed in later versions. The build succeeds on OS X
 10.8 and later, and also on Mac OS X 10.6 on which we install our own
 newer libc++.

 If this is a libc++ bug and not a bug in svndigest or yat, one solution
 that might work is to use the legacysupport portgroup and tell it to use a
 newer MacPorts libc++:

 {{{
 PortGroup legacysupport 1.1
 }}}
 {{{
 legacysupport.newest_darwin_requires_legacy 11
 }}}
 {{{
 legacysupport.use_mp_libcxx yes
 }}}

 If svndigest is passing around C++ objects between itself and its
 dependencies, this isn't a good idea, but if svndigest is only using C++
 objects it created itself and doesn't share them with other libraries,
 this might be fine.

-- 
Ticket URL: <https://trac.macports.org/ticket/67658>
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