[MacPorts] #55720: lldb-6.0 won't compile with 10.11.6 default clang compiler

[MacPorts]

#55720: lldb-6.0 won't compile with 10.11.6 default clang compiler
---------------------------------+----------------------
Reporter: dkbarto | Owner:
Type: defect | Status: new
Priority: Normal | Milestone:
Component: ports | Version: 2.4.2
Keywords: clang lldb-6.0 lldb | Port: lldb-6.0
---------------------------------+----------------------
When this configuration is used the compile eventually throws an error
about thread local variables not being supported. Which is true, the clang
compiler than Apple shipped with 10.11 does not support thread local
variables.
For this reason that compiler should be black listed from the available
compilers so a macports provided version of clang should be used. Most
likely clang 5.0 or clang 6.0 at this time.

--
Ticket URL: <https://trac.macports.org/ticket/55720>
MacPorts <https://www.macports.org/>
Ports system for macOS

[MacPorts]

#55720: lldb-6.0 won't compile with 10.11.6 default clang compiler
-----------------------+----------------------
Reporter: dkbarto | Owner: jeremyhu
Type: defect | Status: assigned
Priority: Normal | Milestone:
Component: ports | Version: 2.4.2
Resolution: | Keywords:
Port: lldb-6.0 |
-----------------------+----------------------
Changes (by mf2k):

* owner: => jeremyhu
* status: new => assigned
* keywords: clang lldb-6.0 lldb =>


Comment:

In the future, please Cc the port maintainers ({{{port info --maintainers
lldb-6.0}}}), if any.

--
Ticket URL: <https://trac.macports.org/ticket/55720#comment:1>
MacPorts <https://www.macports.org/>
Ports system for macOS

[MacPorts]

#55720: lldb-6.0 won't compile with 10.11.6 default clang compiler
-----------------------+----------------------
Reporter: dkbarto | Owner: jeremyhu
Type: defect | Status: assigned
Priority: Normal | Milestone:
Component: ports | Version: 2.4.2
Resolution: | Keywords:
Port: lldb-6.0 |
-----------------------+----------------------

Comment (by ryandesign):

[https://build.macports.org/builders/ports-10.10_x86_64-builder/builds/73389/steps
/install-port/logs/stdio Here is a log] from the Yosemite buildbot worker
showing the same issue:

{{{
[ 17%] Building CXX object
tools/clang/lib/Basic/CMakeFiles/clangBasic.dir/SourceManager.cpp.o
cd
/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_llvm-6.0/lldb-6.0/work/build/tools/clang/lib/Basic
&& /usr/bin/clang++ -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
-I/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_llvm-6.0/lldb-6.0/work/build/tools/clang/lib/Basic
-I/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_llvm-6.0/lldb-6.0/work/llvm-6.0.1.src/tools/clang/lib/Basic
-I/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_llvm-6.0/lldb-6.0/work/llvm-6.0.1.src/tools/clang/include
-I/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_llvm-6.0/lldb-6.0/work/build/tools/clang/include
-I/opt/local/include/libxml2
-I/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_llvm-6.0/lldb-6.0/work/build/include
-I/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_llvm-6.0/lldb-6.0/work/llvm-6.0.1.src/include
-pipe -Os -std=c++11 -stdlib=libc++ -fPIC -fvisibility-inlines-hidden
-Werror=date-time -std=c++11 -Wall -W -Wno-unused-parameter -Wwrite-
strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long
-Wcovered-switch-default -Wnon-virtual-dtor -Wdelete-non-virtual-dtor
-Wstring-conversion -fno-common -Woverloaded-virtual -Wno-nested-anon-
types -DNDEBUG -arch x86_64 -mmacosx-version-min=10.10 -fno-exceptions
-o CMakeFiles/clangBasic.dir/SourceManager.cpp.o -c
/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_llvm-6.0/lldb-6.0/work/llvm-6.0.1.src/tools/clang/lib/Basic/SourceManager.cpp
/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_llvm-6.0/lldb-6.0/work/llvm-6.0.1.src/tools/lldb/source/Utility/Timer.cpp:39:10:
error: thread-local storage is not supported for the current target
static thread_local TimerStack g_stack;
^
}}}

IIRC Apple Clang didn't add support for thread-local storage until version
800, so earlier versions should be blacklisted.

[MacPorts]

#55720: lldb-6.0: error: thread-local storage is not supported for the current
target
-----------------------+----------------------
Reporter: dkbarto | Owner: jeremyhu
Type: defect | Status: assigned
Priority: Normal | Milestone:
Component: ports | Version: 2.4.2
Resolution: | Keywords:
Port: lldb-6.0 |
-----------------------+----------------------