[MacPorts] #58291: clang-8.0 @8.0.0 build fails on darwin 12 because cmake is building libfuzzer against the iPhoneSimulator instead of MacOS.sdk

[MacPorts]

#58291: clang-8.0 @8.0.0 build fails on darwin 12 because cmake is building
libfuzzer against the iPhoneSimulator instead of MacOS.sdk
--------------------------+-----------------------
 Reporter:  kencu         |      Owner:  jeremyhu
     Type:  defect        |     Status:  assigned
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:
 Keywords:  mountainlion  |       Port:  clang-8.0
--------------------------+-----------------------
 This is a truly weird one. In a part of the `clang-8.0` build, `cmake`
 chooses to build it against the` iPhoneSimulator.sdk` with `-miphoneos-
 version-min=8.0` and this fails the `thread_local` test. `clang-7.0` and
 `clang-devel` don't build against darwin12 either, most likely for the
 same reason.

 {{{
 cd
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-8.0/clang-8.0/work/build/projects
 /compiler-rt/lib/fuzzer && /opt/local/bin/clang++-mp-3.7
 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-8.0/clang-8.0/work/build/projects
 /compiler-rt/lib/fuzzer
 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-8.0/clang-8.0/work/llvm-8.0.0.src/projects
 /compiler-rt/lib/fuzzer -I//opt/local/include/libxml2
 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-8.0/clang-8.0/work/build/include
 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-8.0/clang-8.0/work/llvm-8.0.0.src/include
 -pipe -Os -std=c++11 -stdlib=libc++ -fPIC -fvisibility-inlines-hidden
 -Werror=date-time -std=c++11 -Wall -Wextra -Wno-unused-parameter -Wwrite-
 strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long
 -Wimplicit-fallthrough -Wcovered-switch-default -Wnon-virtual-dtor
 -Wdelete-non-virtual-dtor -Wstring-conversion -Wall -std=c++11 -DNDEBUG
 -arch x86_64    -stdlib=libc++ -miphoneos-version-min=8.0 -isysroot
 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.1.sdk
 -fPIC -fno-builtin -fno-exceptions -funwind-tables -fno-stack-protector
 -fno-sanitize=safe-stack -fvisibility=hidden -fno-lto -O3 -gline-tables-
 only -fno-omit-frame-pointer -o
 CMakeFiles/RTfuzzer.iossim.dir/FuzzerDriver.cpp.o -c
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-8.0/clang-8.0/work/llvm-8.0.0.src/projects
 /compiler-rt/lib/fuzzer/FuzzerDriver.cpp

 In file included from
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-8.0/clang-8.0/work/llvm-8.0.0.src/projects
 /compiler-rt/lib/fuzzer/FuzzerDriver.cpp:16:
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-8.0/clang-8.0/work/llvm-8.0.0.src/projects
 /compiler-rt/lib/fuzzer/FuzzerInternal.h:151:10: error: thread-local
 storage is not supported for the current target
   static thread_local bool IsMyThread;
          ^
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/58291>
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