libunwind build failed on ubuntu
CharlesHe023 opened this issue · comments
[21/54] Performing install step for 'compiler-rt'
[0/1] cd /home/hc/render_engine/engine/flutter_embedded/build/toolchain-prefix/src/toolchain-build/compiler-rt-prefix/src/compiler-rt-build && /usr/local/bin/cmake -P cmake_install.cmake
-- Install configuration: "MinSizeRel"
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/allocator_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/asan_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/common_interface_defs.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/coverage_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/dfsan_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/hwasan_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/linux_syscall_hooks.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/lsan_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/msan_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/netbsd_syscall_hooks.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/scudo_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/tsan_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/sanitizer/tsan_interface_atomic.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/xray/xray_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/xray/xray_log_interface.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/include/xray/xray_records.h
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.builtins-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/clang_rt.crtbegin-armhf.o
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/clang_rt.crtend-armhf.o
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.stats-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.stats_client-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.lsan-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.ubsan_standalone-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.ubsan_standalone_cxx-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.ubsan_standalone-armhf.so
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.ubsan_standalone-armhf.a.syms
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.ubsan_standalone_cxx-armhf.a.syms
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.asan-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.asan_cxx-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.asan-preinit-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.asan-armhf.so
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.asan_cxx-armhf.a.syms
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.asan-armhf.a.syms
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/share/asan_blacklist.txt
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.cfi-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.cfi_diag-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/share/cfi_blacklist.txt
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.scudo_minimal-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.scudo_cxx_minimal-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.scudo-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.scudo_cxx-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.scudo_minimal-armhf.so
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.scudo-armhf.so
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.ubsan_minimal-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.ubsan_minimal-armhf.so
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.ubsan_minimal-armhf.a.syms
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.xray-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.xray-fdr-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.xray-basic-armhf.a
-- Installing: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/lib/linux/libclang_rt.xray-profiling-armhf.a
[22/54] Completed 'compiler-rt'
[23/54] Creating directories for 'libunwind'
[24/54] No download step for 'libunwind'
[25/54] No patch step for 'libunwind'
[26/54] No update step for 'libunwind'
[27/54] Performing configure step for 'libunwind'
FAILED: libunwind-prefix/src/libunwind-stamp/libunwind-configure
cd /home/hc/render_engine/engine/flutter_embedded/build/toolchain-prefix/src/toolchain-build/libunwind-prefix/src/libunwind-build && /usr/local/bin/cmake -DCMAKE_TOOLCHAIN_FILE=/home/hc/render_engine/engine/flutter_embedded/build/toolchain-prefix/src/toolchain-build/toolchain.cmake -DCMAKE_INSTALL_PREFIX=/home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/clang/9.0.0/arm-linux-gnueabihf -DCMAKE_BUILD_TYPE=MinSizeRel -DCMAKE_VERBOSE_MAKEFILE=FALSE -DLLVM_CONFIG_PATH=/home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/bin/llvm-config -DLIBUNWIND_STANDALONE_BUILD=OFF -DLIBUNWIND_TARGET_TRIPLE=arm-linux-gnueabihf -DLIBUNWIND_SYSROOT=/home/hc/render_engine/engine/flutter_embedded/sdk/sysroot -DLIBUNWIND_ENABLE_SHARED=ON -ULIBUNWIND_USE_COMPILER_RT=ON -GNinja /home/hc/render_engine/engine/flutter_embedded/third_party/llvm/libunwind && /usr/local/bin/cmake -E touch /home/hc/render_engine/engine/flutter_embedded/build/toolchain-prefix/src/toolchain-build/libunwind-prefix/src/libunwind-stamp/libunwind-configure
-- The C compiler identification is Clang 9.0.0
-- The CXX compiler identification is Clang 9.0.0
-- Check for working C compiler: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/bin/clang
-- Check for working C compiler: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/bin/clang -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/bin/clang++
-- Check for working CXX compiler: /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/bin/clang++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found LLVM_CONFIG_PATH as /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/bin/llvm-config
-- Linker detection: GNU ld
-- Performing Test LLVM_LIBSTDCXX_MIN
-- Performing Test LLVM_LIBSTDCXX_MIN - Failed
CMake Error at /home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/cmake/llvm/CheckCompilerVersion.cmake:83 (message):
libstdc++ version must be at least 4.8.
Call Stack (most recent call first):
/home/hc/render_engine/engine/flutter_embedded/sdk/toolchain/lib/cmake/llvm/HandleLLVMOptions.cmake:9 (include)
CMakeLists.txt:80 (include)
-- Configuring incomplete, errors occurred!
See also "/home/hc/render_engine/engine/flutter_embedded/build/toolchain-prefix/src/toolchain-build/libunwind-prefix/src/libunwind-build/CMakeFiles/CMakeOutput.log".
See also "/home/hc/render_engine/engine/flutter_embedded/build/toolchain-prefix/src/toolchain-build/libunwind-prefix/src/libunwind-build/CMakeFiles/CMakeError.log".
ninja: build stopped: subcommand failed.
ninja: build stopped: subcommand failed.
Traceback (most recent call last):
File "/home/hc/.local/depot_tools/ninjalog_uploader_wrapper.py", line 118, in
sys.exit(main())
File "/home/hc/.local/depot_tools/ninjalog_uploader_wrapper.py", line 76, in main
config = LoadConfig()
File "/home/hc/.local/depot_tools/ninjalog_uploader_wrapper.py", line 31, in LoadConfig
'chromium-build-stats.appspot.com'),
File "/home/hc/.local/depot_tools/ninjalog_uploader.py", line 48, in IsGoogler
_, content = h.request('https://'+server+'/should-upload', 'GET')
File "/home/hc/.local/depot_tools/third_party/httplib2/init.py", line 1694, in request
(response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)
File "/home/hc/.local/depot_tools/third_party/httplib2/init.py", line 1434, in _request
(response, content) = self._conn_request(conn, request_uri, method, body, headers)
File "/home/hc/.local/depot_tools/third_party/httplib2/init.py", line 1390, in _conn_request
response = conn.getresponse()
File "/usr/lib/python2.7/httplib.py", line 1139, in getresponse
raise ResponseNotReady()
httplib.ResponseNotReady
Thanks. I'll take a look when I have time. To get past this, you can override the toolchain using a pre-built or local build of Clang.
Thanks. I'll take a look when I have time. To get past this, you can override the toolchain using a pre-built or local build of Clang.
Thanks. I have changed clang to 10.0, but still no luck. Here are more details below:
Compiling the C compiler identification source file "CMakeCCompilerId.c" failed.
Compiler: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin/clang
Build flags:
Id flags:
The output was:
1
/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin/arm-linux-gnueabihf-ld: /lib/../lib/crt1.o: relocations in generic ELF (EM: 3)
/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin/arm-linux-gnueabihf-ld: /lib/../lib/crt1.o: error adding symbols: file in wrong format
clang-10: error: linker command failed with exit code 1 (use -v to see invocation)
Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin/clang++
Build flags:
Id flags:
The output was:
1
/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin/arm-linux-gnueabihf-ld: /lib/../lib/crt1.o: relocations in generic ELF (EM: 3)
/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin/arm-linux-gnueabihf-ld: /lib/../lib/crt1.o: error adding symbols: file in wrong format
clang-10: error: linker command failed with exit code 1 (use -v to see invocation)
Performing C++ SOURCE FILE Test LLVM_LIBSTDCXX_MIN failed with the following output:
Change Dir: /home/qiheng.hc/work/render_engine/clang_toolchain/build/libunwind-prefix/src/libunwind-build/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/gmake cmTC_453d6/fast && gmake[3]: Entering directory /home/qiheng.hc/work/render_engine/clang_toolchain/build/libunwind-prefix/src/libunwind-build/CMakeFiles/CMakeTmp' /usr/bin/gmake -f CMakeFiles/cmTC_453d6.dir/build.make CMakeFiles/cmTC_453d6.dir/build gmake[4]: Entering directory /home/qiheng.hc/work/render_engine/clang_toolchain/build/libunwind-prefix/src/libunwind-build/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_453d6.dir/src.cxx.o
/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin/clang++ --target=arm-linux-gnueabihf --sysroot=/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot -DLLVM_LIBSTDCXX_MIN -std=c++0x -o CMakeFiles/cmTC_453d6.dir/src.cxx.o -c /home/qiheng.hc/work/render_engine/clang_toolchain/build/libunwind-prefix/src/libunwind-build/CMakeFiles/CMakeTmp/src.cxx
Linking CXX executable cmTC_453d6
/home/qiheng.hc/.local/lib/python2.7/site-packages/cmake/data/bin/cmake -E cmake_link_script CMakeFiles/cmTC_453d6.dir/link.txt --verbose=1
/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin/clang++ --target=arm-linux-gnueabihf --sysroot=/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot -DLLVM_LIBSTDCXX_MIN -std=c++0x -nodefaultlibs -lc -fuse-ld=lld -v CMakeFiles/cmTC_453d6.dir/src.cxx.o -o cmTC_453d6
clang version 10.0.0 (git@gitee.com:horton-cq/llvm-project.git 35627038123b5b391a20e9f4d44a85c7a325027b)
Target: arm-unknown-linux-gnueabihf
Thread model: posix
InstalledDir: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin
Found candidate GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/4.9
Found candidate GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/4.9.4
Found candidate GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/5
Found candidate GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/5.5.0
Found candidate GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/6
Found candidate GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/6.5.0
Found candidate GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/7
Found candidate GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/7.3.0
Found candidate GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8
Selected GCC installation: /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8
Candidate multilib: .;@m32
Selected multilib: .;@m32
"/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/toolchain/bin/ld.lld" --sysroot=/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot -EL -X --eh-frame-hdr -m armelf_linux_eabi -dynamic-linker /lib/ld-linux-armhf.so.3 -o cmTC_453d6 /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crt1.o /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crti.o /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8/crtbegin.o -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8 -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8/../../../../lib -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/lib/arm-linux-gnueabihf -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/lib/../lib -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/arm-linux-gnueabihf -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/../lib -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/arm-linux-gnueabihf/../../lib -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8/../../.. -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/lib -L/home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib -lc CMakeFiles/cmTC_453d6.dir/src.cxx.o /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8/crtend.o /home/qiheng.hc/work/render_engine/flutter_sdk_root/sdk/sysroot/usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crtn.o
ld.lld: error: undefined symbol: std::bad_function_call::what() const
referenced by src.cxx
CMakeFiles/cmTC_453d6.dir/src.cxx.o:(chk)
clang-10: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[4]: *** [cmTC_453d6] Error 1
gmake[4]: Leaving directory/home/qiheng.hc/work/render_engine/clang_toolchain/build/libunwind-prefix/src/libunwind-build/CMakeFiles/CMakeTmp' gmake[3]: *** [cmTC_453d6/fast] Error 2 gmake[3]: Leaving directory/home/qiheng.hc/work/render_engine/clang_toolchain/build/libunwind-prefix/src/libunwind-build/CMakeFiles/CMakeTmp'
Source file was:
#include
#if defined(GLIBCXX)
#if GLIBCXX < 20150422
#error Unsupported libstdc++ version
#endif
#endif
#if defined(GLIBCXX)
extern const char _ZNKSt17bad_function_call4whatEv[];
const char *chk = _ZNKSt17bad_function_call4whatEv;
#else
const char *chk = "";
#endif
int main() { ++chk; return 0; }
Hi jwinarske,
I have added -DLLVM_COMPILER_CHECKED=TRUE to skip compiler check, now I get configure error for libcxxabi:
CMake Error at src/CMakeLists.txt:256 (add_custom_command):
Error evaluating generator expression:
$<TARGET_LINKER_FILE:unwind_static>
No target "unwind_static"
CMake Error at src/CMakeLists.txt:256 (add_custom_command):
Error evaluating generator expression:
$<TARGET_LINKER_FILE:unwind_static>
No target "unwind_static"
```
Hi @ffzwadd. A couple of thoughts.
The llvm-project moved to git, and it's streamlined. I'm working on support for this.
The flutter engine build pulls in a pre-built clang tool chain. Depending on your host, you can cross-compile without much effort. I've recently added meta-flutter which uses this model. At some point I'm going to update my emersed flutter repo to use this scheme.
What hardware are you targeting, what's your host environment?
Hi jwinarske,
Actually, I have tried change llvm-project repos to git, but I still experienced the same error.
Thanks and best regards,
Charles
I see. I started a new branch for my change. It should be ready in ~a week.
Yeah I've seen llvm devs complain about this error on the llvm mailing list; unrelated to me.
Cheers,
Joel
OK, I'll try your new branch later. Thanks for your help.
You can pull a CIPD package of Clang 11. It has aarch, arm, x86, and x86_64. I'll post up the command sequence.