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clang: add upstream patch to fix assertion failure
After devel/boost-libs is updated to 1.81.0, build fails on -CURRENT because of clang's assertion failure as following. clang-linux.compile.c++ bin.v2/libs/url/build/clang-linux-16/release/link-static/pch-off/threading-multi/visibility-hidden/src.o "c++" -c -x c++ -fvisibility-inlines-hidden -m64 -pthread -O3 -Wall -fvisibility=hidden -Wno-inline -pipe -DLIBICONV_PLUG -fstack-protector-strong -fno-strict-aliasing -DLIBICONV_PLUG -std=gnu++17 -pipe -DLIBICONV_PLUG -fstack-protector-strong -fno-strict-aliasing -DBOOST_ALL_NO_LIB=1 -DBOOST_URL_SOURCE -DBOOST_URL_STATIC_LINK=1 -DNDEBUG -I"." -o "bin.v2/libs/url/build/clang-linux-16/release/link-static/pch-off/threading-multi/visibility-hidden/src.o" "libs/url/src/src.cpp" Assertion failed: (isa<To>(Val) && "cast<Ty>() argument of incompatible type!"), function cast, file /usr/src/contrib/llvm-project/llvm/include/llvm/Support/Casting.h, line 579. PLEASE submit a bug report to https://bugs.freebsd.org/submit/ and include the crash backtrace, preprocessed source, and associated run script. Stack dump: 0. Program arguments: c++ -c -x c++ -fvisibility-inlines-hidden -m64 -pthread -O3 -Wall -fvisibility=hidden -Wno-inline -pipe -DLIBICONV_PLUG -fstack-protector-strong -fno-strict-aliasing -DLIBICONV_PLUG -std=gnu++17 -pipe -DLIBICONV_PLUG -fstack-protector-strong -fno-strict-aliasing -DBOOST_ALL_NO_LIB=1 -DBOOST_URL_SOURCE -DBOOST_URL_STATIC_LINK=1 -DNDEBUG -I. -o bin.v2/libs/url/build/clang-linux-16/release/link-static/pch-off/threading-multi/visibility-hidden/src.o libs/url/src/src.cpp 1. ./boost/url/impl/segments_view.ipp:33:1: current parser token '{' 2. ./boost/url/impl/segments_view.ipp:17:1: parsing namespace 'boost' 3. ./boost/url/impl/segments_view.ipp:18:1: parsing namespace 'boost::urls' #0 0x00000000058158c1 PrintStackTrace /usr/src/contrib/llvm-project/llvm/lib/Support/Unix/Signals.inc:567:13 freebsd#1 0x0000000005813c45 RunSignalHandlers /usr/src/contrib/llvm-project/llvm/lib/Support/Signals.cpp:105:18 freebsd#2 0x00000000057bb7cb HandleCrash /usr/src/contrib/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:73:5 freebsd#3 0x00000000057bb7cb CrashRecoverySignalHandler /usr/src/contrib/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:390:51 freebsd#4 0x000000082a4a9a8f handle_signal /usr/src/lib/libthr/thread/thr_sig.c:0:3 freebsd#5 0x000000082a4a904b thr_sighandler /usr/src/lib/libthr/thread/thr_sig.c:247:1 freebsd#6 0x000000082802a2d3 ([vdso]+0x2d3) freebsd#7 0x000000082e2a3cda thr_kill /usr/obj/usr/src/amd64.amd64/lib/libc/thr_kill.S:4:0 freebsd#8 0x000000082e21d1f4 raise /usr/src/lib/libc/gen/raise.c:0:10 freebsd#9 0x000000082e2cd3b9 abort /usr/src/lib/libc/stdlib/abort.c:73:17 c++: error: clang frontend command failed with exit code 134 (use -v to see invocation) FreeBSD clang version 16.0.6 (https://github.com/llvm/llvm-project.git llvmorg-16.0.6-0-g7cbf1a259152) Target: x86_64-unknown-freebsd14.0 Thread model: posix InstalledDir: /usr/bin c++: note: diagnostic msg: ******************** PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: Preprocessed source(s) and associated run script(s) are located at: c++: note: diagnostic msg: /tmp/src-00f4ba.cpp c++: note: diagnostic msg: /tmp/src-00f4ba.sh c++: note: diagnostic msg: ******************** ...failed clang-linux.compile.c++ bin.v2/libs/url/build/clang-linux-16/release/link-static/pch-off/threading-multi/visibility-hidden/src.o... So add upstream patch to fix it. PR: 269067 Obtained from: https://reviews.llvm.org/D148474
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