version:1
:msg:clean --->  Computing dependencies for libcxxabi:info:clean .:debug:clean libcxxabi has no conflicts
:debug:clean Searching for dependency: xz
:debug:clean Found Dependency: receipt exists for xz
:debug:clean Searching for dependency: clang-3.9
:debug:clean Found Dependency: receipt exists for clang-3.9
:debug:main Executing org.macports.main (libcxxabi)
:debug:main dropping privileges: euid changed to 14507, egid changed to 506.
:debug:archivefetch archivefetch phase started at Thu Dec 28 18:56:55 EST 2017
:debug:archivefetch Executing org.macports.archivefetch (libcxxabi)
:debug:archivefetch Privilege de-escalation not attempted as not running as root.
:debug:fetch fetch phase started at Thu Dec 28 18:56:55 EST 2017
:notice:fetch --->  Fetching distfiles for libcxxabi
:debug:fetch Executing org.macports.fetch (libcxxabi)
:debug:fetch Privilege de-escalation not attempted as not running as root.
:debug:checksum checksum phase started at Thu Dec 28 18:56:55 EST 2017
:notice:checksum --->  Verifying checksums for libcxxabi
:debug:checksum Executing org.macports.checksum (libcxxabi)
:info:checksum --->  Checksumming libcxxabi-3.9.1.src.tar.xz
:debug:checksum Calculated (rmd160) is fe3ed237640b0c1a8f8ce3b2654f78005308f1cd
:debug:checksum Correct (rmd160) checksum for libcxxabi-3.9.1.src.tar.xz
:debug:checksum Calculated (sha256) is 920d8be32e6f5574a3fb293f93a31225eeba15086820fcb942155bf50dc029e2
:debug:checksum Correct (sha256) checksum for libcxxabi-3.9.1.src.tar.xz
:debug:checksum Privilege de-escalation not attempted as not running as root.
:debug:extract extract phase started at Thu Dec 28 18:56:55 EST 2017
:notice:extract --->  Extracting libcxxabi
:debug:extract setting option extract.cmd to /opt/local/bin/xz
:debug:extract Executing org.macports.extract (libcxxabi)
:info:extract --->  Extracting libcxxabi-3.9.1.src.tar.xz
:debug:extract setting option extract.args to '/opt/local/var/macports/distfiles/llvm/libcxxabi-3.9.1.src.tar.xz'
:debug:extract Environment: 
:debug:extract CC_PRINT_OPTIONS='YES'
:debug:extract CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/.CC_PRINT_OPTIONS'
:debug:extract CPATH='/opt/local/include'
:debug:extract LIBRARY_PATH='/opt/local/lib'
:debug:extract MACOSX_DEPLOYMENT_TARGET='10.6'
:info:extract Executing:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work" && /opt/local/bin/xz -dc '/opt/local/var/macports/distfiles/llvm/libcxxabi-3.9.1.src.tar.xz' | /usr/bin/gnutar --no-same-owner -xf - 
:debug:extract system:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work" && /opt/local/bin/xz -dc '/opt/local/var/macports/distfiles/llvm/libcxxabi-3.9.1.src.tar.xz' | /usr/bin/gnutar --no-same-owner -xf - 
:debug:extract euid/egid changed to: 0/0
:debug:extract chowned /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work to macports
:debug:extract euid/egid changed to: 14507/506
:debug:extract Executing proc-post-org.macports.extract-extract-0
:debug:extract Privilege de-escalation not attempted as not running as root.
:debug:patch patch phase started at Thu Dec 28 18:56:56 EST 2017
:debug:patch Executing org.macports.patch (libcxxabi)
:notice:patch --->  Applying patches to libcxxabi
:info:patch --->  Applying 0001-Remove-dependancy-on-__refstring-header-use-local-co.patch
:debug:patch Environment: 
:debug:patch CC_PRINT_OPTIONS='YES'
:debug:patch CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/.CC_PRINT_OPTIONS'
:debug:patch CPATH='/opt/local/include'
:debug:patch LIBRARY_PATH='/opt/local/lib'
:debug:patch MACOSX_DEPLOYMENT_TARGET='10.6'
:info:patch Executing:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/libcxxabi-3.9.1.src" && /usr/bin/patch -p1 < '/opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/lang/libcxxabi/files/0001-Remove-dependancy-on-__refstring-header-use-local-co.patch'
:debug:patch system:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/libcxxabi-3.9.1.src" && /usr/bin/patch -p1 < '/opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/lang/libcxxabi/files/0001-Remove-dependancy-on-__refstring-header-use-local-co.patch'
:info:patch patching file src/include/refstring.h
:info:patch patching file src/stdexcept.cpp
:info:patch --->  Applying 0002-Update-buildit-script-to-read-EXTRA_LDFLAGS-from-the.patch
:debug:patch Environment: 
:debug:patch CC_PRINT_OPTIONS='YES'
:debug:patch CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/.CC_PRINT_OPTIONS'
:debug:patch CPATH='/opt/local/include'
:debug:patch LIBRARY_PATH='/opt/local/lib'
:debug:patch MACOSX_DEPLOYMENT_TARGET='10.6'
:info:patch Executing:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/libcxxabi-3.9.1.src" && /usr/bin/patch -p1 < '/opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/lang/libcxxabi/files/0002-Update-buildit-script-to-read-EXTRA_LDFLAGS-from-the.patch'
:debug:patch system:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/libcxxabi-3.9.1.src" && /usr/bin/patch -p1 < '/opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/lang/libcxxabi/files/0002-Update-buildit-script-to-read-EXTRA_LDFLAGS-from-the.patch'
:info:patch patching file lib/buildit
:info:patch --->  Applying 0003-Define-_LIBCPP_BUILDING_LIBRARY-during-build-to-supp.patch
:debug:patch Environment: 
:debug:patch CC_PRINT_OPTIONS='YES'
:debug:patch CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/.CC_PRINT_OPTIONS'
:debug:patch CPATH='/opt/local/include'
:debug:patch LIBRARY_PATH='/opt/local/lib'
:debug:patch MACOSX_DEPLOYMENT_TARGET='10.6'
:info:patch Executing:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/libcxxabi-3.9.1.src" && /usr/bin/patch -p1 < '/opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/lang/libcxxabi/files/0003-Define-_LIBCPP_BUILDING_LIBRARY-during-build-to-supp.patch'
:debug:patch system:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/libcxxabi-3.9.1.src" && /usr/bin/patch -p1 < '/opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/lang/libcxxabi/files/0003-Define-_LIBCPP_BUILDING_LIBRARY-during-build-to-supp.patch'
:info:patch patching file lib/buildit
:debug:patch Privilege de-escalation not attempted as not running as root.
:debug:configure configure phase started at Thu Dec 28 18:56:56 EST 2017
:notice:configure --->  Configuring libcxxabi
:debug:configure Preferred compilers: macports-clang-3.9 macports-clang-3.7 macports-clang-3.4 gcc-4.2 apple-gcc-4.2 gcc-4.0
:debug:configure Using compiler 'MacPorts Clang 3.9'
:debug:configure Executing org.macports.configure (libcxxabi)
:debug:configure Privilege de-escalation not attempted as not running as root.
:debug:build build phase started at Thu Dec 28 18:56:56 EST 2017
:notice:build --->  Building libcxxabi
:debug:build Executing org.macports.build (libcxxabi)
:debug:build Environment: 
:debug:build CC='/opt/local/bin/clang-mp-3.9 -I/opt/local/include'
:debug:build CC_PRINT_OPTIONS='YES'
:debug:build CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/.CC_PRINT_OPTIONS'
:debug:build CPATH='/opt/local/include'
:debug:build CXX='/opt/local/bin/clang++-mp-3.9 -I/opt/local/include'
:debug:build LIBRARY_PATH='/opt/local/lib'
:debug:build MACOSX_DEPLOYMENT_TARGET='10.6'
:debug:build RC_CFLAGS='-arch x86_64 -arch i386'
:debug:build RC_ProjectSourceVersion='3.9.1'
:debug:build RC_XBS='1'
:debug:build TRIPLE='-apple-darwin10'
:info:build Executing:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/libcxxabi-3.9.1.src/lib" && ./buildit all 
:debug:build system:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/libcxxabi-3.9.1.src/lib" && ./buildit all 
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/abort_message.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_aux_runtime.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_default_handlers.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_demangle.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_exception.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_exception_storage.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_guard.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_handlers.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_new_delete.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_personality.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_thread_atexit.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_unexpected.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_vector.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/cxa_virtual.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/exception.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/private_typeinfo.cpp
:info:build + for FILE in '../src/*.cpp'
:info:build + /opt/local/bin/clang++-mp-3.9 -I/opt/local/include -c -g -O3 -arch x86_64 -arch i386 -std=c++11 -stdlib=libc++ -fstrict-aliasing -Wstrict-aliasing=2 -Wsign-conversion -Wshadow -Wconversion -Wunused-variable -Wmissing-field-initializers -Wchar-subscripts -Wmismatched-tags -Wmissing-braces -Wshorten-64-to-32 -Wsign-compare -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wnewline-eof -D_LIBCPP_BUILDING_LIBRARY -I../include ../src/stdexcept.cpp
:info:build In file included from ../src/stdexcept.cpp:10:
:info:build ../src/include/refstring.h:74:21: error: out-of-line definition of '__libcpp_refstring' does not match any declaration in 'std::__1::__libcpp_refstring'
:info:build __libcpp_refstring::__libcpp_refstring(const char* msg) {
:info:build                     ^~~~~~~~~~~~~~~~~~
:info:build ../src/include/refstring.h:86:21: error: definition of implicitly declared copy constructor
:info:build __libcpp_refstring::__libcpp_refstring(const __libcpp_refstring &s) _NOEXCEPT
:info:build                     ^
:info:build ../src/include/refstring.h:89:9: error: use of undeclared identifier '__uses_refcount'
:info:build     if (__uses_refcount())
:info:build         ^
:info:build ../src/include/refstring.h:94:41: error: definition of implicitly declared copy assignment operator
:info:build __libcpp_refstring& __libcpp_refstring::operator=(__libcpp_refstring const& s) _NOEXCEPT {
:info:build                                         ^
:info:build ../src/include/refstring.h:95:29: error: use of undeclared identifier '__uses_refcount'
:info:build     bool adjust_old_count = __uses_refcount();
:info:build                             ^
:info:build ../src/include/refstring.h:98:9: error: use of undeclared identifier '__uses_refcount'
:info:build     if (__uses_refcount())
:info:build         ^
:info:build ../src/include/refstring.h:111:21: error: definition of implicitly declared destructor
:info:build __libcpp_refstring::~__libcpp_refstring() {
:info:build                     ^
:info:build ../src/include/refstring.h:112:9: error: use of undeclared identifier '__uses_refcount'
:info:build     if (__uses_refcount()) {
:info:build         ^
:info:build ../src/include/refstring.h:121:26: error: out-of-line definition of '__uses_refcount' does not match any declaration in 'std::__1::__libcpp_refstring'
:info:build bool __libcpp_refstring::__uses_refcount() const {
:info:build                          ^~~~~~~~~~~~~~~
:info:build ../src/stdexcept.cpp:28:19: error: no member named 'c_str' in 'std::__1::__libcpp_refstring'
:info:build     return __imp_.c_str();
:info:build            ~~~~~~ ^
:info:build ../src/stdexcept.cpp:36:19: error: no member named 'c_str' in 'std::__1::__libcpp_refstring'
:info:build     return __imp_.c_str();
:info:build            ~~~~~~ ^
:info:build 11 errors generated.
:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/work/libcxxabi-3.9.1.src/lib" && ./buildit all 
:info:build Exit code: 1
:error:build Failed to build libcxxabi: command execution failed
:debug:build Error code: CHILDSTATUS 36912 1
:debug:build Backtrace: command execution failed
:debug:build     while executing
:debug:build "system {*}$notty {*}$nice $fullcmdstring"
:debug:build     invoked from within
:debug:build "command_exec build"
:debug:build     (procedure "portbuild::build_main" line 8)
:debug:build     invoked from within
:debug:build "$procedure $targetname"
:error:build See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_libcxxabi/libcxxabi/main.log for details.