Mac linker error: dyld: Symbol not found: _futimens #5418

n8gray · Jul 24, 2017

Following the tutorial here I've installed Rust and Emscripten. But when I try to compile a simple rust file to WebAssembly I get an error from llvm-ar. I'm on macOS Sierra 10.12.5:

[i852946@LAXM00618711A]% uname -a
Darwin LAXM00618711A 16.6.0 Darwin Kernel Version 16.6.0: Fri Apr 14 16:21:16 PDT 2017; root:xnu-3789.60.24~6/RELEASE_X86_64 x86_64

[i852946@LAXM00618711A]% rustc --version
rustc 1.19.0 (0ade33941 2017-07-17)

[i852946@LAXM00618711A]% emcc --version
emcc (Emscripten gcc/clang-like replacement) 1.37.15 (commit 519de4c4160f37af5e0c24a5cc2f57d142ad0c65)
Copyright (C) 2014 the Emscripten authors (see AUTHORS.txt)
This is free and open source software under the MIT license.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[i852946@LAXM00618711A]% cat main.rs
fn main() {
    println!("Hello, world!");
}

[i852946@LAXM00618711A]% rustc --target=wasm32-unknown-emscripten main.rs -o main.html
error: linking with `emcc` failed: exit code: 1
  |
  = note: "emcc" "-s" "DISABLE_EXCEPTION_CATCHING=0" "-L" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib" "main.0.o" "-o" "main.html" "-s" "EXPORTED_FUNCTIONS=[\"_main\",\"_rust_eh_personality\"]" "-O0" "--memory-init-file" "0" "-g0" "-s" "DEFAULT_LIBRARY_FUNCS_TO_INCLUDE=[]" "-L" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libstd-f4594d3e53dcb114.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/librand-1efbcfd8938372b6.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcollections-532a3dbf317eff86.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libstd_unicode-cfbd6648f7db2ee5.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libpanic_unwind-a0157c0ca919c364.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libunwind-488b4ab4bd53a138.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc-ca07b617414dd0fa.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc_system-68e33a366943aef4.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liblibc-88c194c15fdb6521.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcore-687e6a964d22cbb4.rlib" "/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcompiler_builtins-987729be881d4d32.rlib" "-l" "c" "-s" "BINARYEN=1" "-s" "ERROR_ON_UNDEFINED_SYMBOLS=1"
  = note: extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libunwind-488b4ab4bd53a138.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_ypnCpN_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_ypnCpN_archive_contents/unwind-488b4ab4bd53a138.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libunwind-488b4ab4bd53a138.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x000000010570d138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x000000010570c366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x000000010570d77e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x00000001092c5b4d _sigtramp + 1225711661
          5  libsystem_platform.dylib 0x00000001092d0464 _sigtramp + 1225754948
          6  libsystem_platform.dylib 0x00000001092ab793 _sigtramp + 1225604211
          7  libsystem_platform.dylib 0x00000001092ab89e _sigtramp + 1225604478
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x0000000105955358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x000000010558f33c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x000000010558dce6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x000000010558b599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libunwind-488b4ab4bd53a138.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libpanic_unwind-a0157c0ca919c364.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_VOH6_8_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_VOH6_8_archive_contents/panic_unwind-a0157c0ca919c364.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libpanic_unwind-a0157c0ca919c364.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x0000000105c2e138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x0000000105c2d366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x0000000105c2e77e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x000000010c25db4d _sigtramp + 1275617325
          5  libsystem_platform.dylib 0x000000010c268464 _sigtramp + 1275660612
          6  libsystem_platform.dylib 0x000000010c243793 _sigtramp + 1275509875
          7  libsystem_platform.dylib 0x000000010c24389e _sigtramp + 1275510142
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x0000000105e76358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x0000000105ab033c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x0000000105aaece6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x0000000105aac599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          14 libdyld.dylib            0x0000000000000003 start + 1073970639
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libpanic_unwind-a0157c0ca919c364.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcollections-532a3dbf317eff86.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_y7Qv4f_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_y7Qv4f_archive_contents/collections-532a3dbf317eff86.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcollections-532a3dbf317eff86.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x000000010d65c138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x000000010d65b366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x000000010d65c77e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x00000001116e0b4d _sigtramp + 1364234285
          5  libsystem_platform.dylib 0x00000001116eb464 _sigtramp + 1364277572
          6  libsystem_platform.dylib 0x00000001116c6793 _sigtramp + 1364126835
          7  libsystem_platform.dylib 0x00000001116c689e _sigtramp + 1364127102
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x000000010d8a4358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x000000010d4de33c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x000000010d4dcce6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x000000010d4da599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          14 libdyld.dylib            0x0000000000000003 start + 1073970639
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcollections-532a3dbf317eff86.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/librand-1efbcfd8938372b6.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_vP2t_J_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_vP2t_J_archive_contents/rand-1efbcfd8938372b6.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/librand-1efbcfd8938372b6.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x000000010146e138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x000000010146d366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x000000010146e77e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x000000010dae3b4d _sigtramp + 1301332013
          5  libsystem_platform.dylib 0x000000010daee464 _sigtramp + 1301375300
          6  libsystem_platform.dylib 0x000000010dac9793 _sigtramp + 1301224563
          7  libsystem_platform.dylib 0x000000010dac989e _sigtramp + 1301224830
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x00000001016b6358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x00000001012f033c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x00000001012eece6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x00000001012ec599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/librand-1efbcfd8938372b6.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libstd_unicode-cfbd6648f7db2ee5.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_Nn6f4y_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_Nn6f4y_archive_contents/std_unicode-cfbd6648f7db2ee5.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libstd_unicode-cfbd6648f7db2ee5.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x000000010c1ac138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x000000010c1ab366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x000000010c1ac77e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x0000000112eb2b4d _sigtramp + 1389211693
          5  libsystem_platform.dylib 0x0000000112ebd464 _sigtramp + 1389254980
          6  libsystem_platform.dylib 0x0000000112e98793 _sigtramp + 1389104243
          7  libsystem_platform.dylib 0x0000000112e9889e _sigtramp + 1389104510
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x000000010c3f4358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x000000010c02e33c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x000000010c02cce6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x000000010c02a599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          14 libdyld.dylib            0x0000000000000003 start + 1073970639
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libstd_unicode-cfbd6648f7db2ee5.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc-ca07b617414dd0fa.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_cCct0w_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_cCct0w_archive_contents/alloc-ca07b617414dd0fa.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc-ca07b617414dd0fa.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x0000000107956138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x0000000107955366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x000000010795677e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x0000000110136b4d _sigtramp + 1341517869
          5  libsystem_platform.dylib 0x0000000110141464 _sigtramp + 1341561156
          6  libsystem_platform.dylib 0x000000011011c793 _sigtramp + 1341410419
          7  libsystem_platform.dylib 0x000000011011c89e _sigtramp + 1341410686
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x0000000107b9e358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x00000001077d833c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x00000001077d6ce6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x00000001077d4599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc-ca07b617414dd0fa.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc_system-68e33a366943aef4.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_fUCxR6_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_fUCxR6_archive_contents/alloc_system-68e33a366943aef4.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc_system-68e33a366943aef4.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x0000000103229138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x0000000103228366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x000000010322977e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x0000000107c2bb4d _sigtramp + 1202012205
          5  libsystem_platform.dylib 0x0000000107c36464 _sigtramp + 1202055492
          6  libsystem_platform.dylib 0x0000000107c11793 _sigtramp + 1201904755
          7  libsystem_platform.dylib 0x0000000107c1189e _sigtramp + 1201905022
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x0000000103471358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x00000001030ab33c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x00000001030a9ce6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x00000001030a7599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          14 libdyld.dylib            0x0000000000000003 start + 1073970639
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc_system-68e33a366943aef4.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libstd-f4594d3e53dcb114.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_CJwaUu_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_CJwaUu_archive_contents/std-f4594d3e53dcb114.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libstd-f4594d3e53dcb114.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x000000010508c138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x000000010508b366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x000000010508c77e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x000000010c1c4b4d _sigtramp + 1274990637
          5  libsystem_platform.dylib 0x000000010c1cf464 _sigtramp + 1275033924
          6  libsystem_platform.dylib 0x000000010c1aa793 _sigtramp + 1274883187
          7  libsystem_platform.dylib 0x000000010c1aa89e _sigtramp + 1274883454
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x00000001052d4358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x0000000104f0e33c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x0000000104f0cce6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x0000000104f0a599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libstd-f4594d3e53dcb114.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liblibc-88c194c15fdb6521.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_mEKXWd_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_mEKXWd_archive_contents/libc-88c194c15fdb6521.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liblibc-88c194c15fdb6521.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x00000001054d6138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x00000001054d5366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x00000001054d677e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x000000011160bb4d _sigtramp + 1363361837
          5  libsystem_platform.dylib 0x0000000111616464 _sigtramp + 1363405124
          6  libsystem_platform.dylib 0x00000001115f1793 _sigtramp + 1363254387
          7  libsystem_platform.dylib 0x00000001115f189e _sigtramp + 1363254654
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x000000010571e358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x000000010535833c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x0000000105356ce6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x0000000105354599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/liblibc-88c194c15fdb6521.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcompiler_builtins-987729be881d4d32.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_smgjDK_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_smgjDK_archive_contents/compiler_builtins-987729be881d4d32.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcompiler_builtins-987729be881d4d32.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x000000010c594138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x000000010c593366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x000000010c59477e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x000000010ed69b4d _sigtramp + 1320755245
          5  libsystem_platform.dylib 0x000000010ed74464 _sigtramp + 1320798532
          6  libsystem_platform.dylib 0x000000010ed4f793 _sigtramp + 1320647795
          7  libsystem_platform.dylib 0x000000010ed4f89e _sigtramp + 1320648062
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x000000010c7dc358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x000000010c41633c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x000000010c414ce6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x000000010c412599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcompiler_builtins-987729be881d4d32.rlib 
          
          extract archive contents(/Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcore-687e6a964d22cbb4.rlib) failed with error: llvm-ar failed to extract file(s) ['/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_I6YX8R_archive_contents/rust.metadata.bin', '/private/var/folders/ss/x9rj8hxn6rx0xb0jq3qk1nyd77n725/T/emscripten_temp_I6YX8R_archive_contents/core-687e6a964d22cbb4.0.bytecode.deflate'] from archive file /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcore-687e6a964d22cbb4.rlib! Error:dyld: lazy symbol binding failed: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib
          
          0  llvm-ar                  0x000000010699a138 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
          1  llvm-ar                  0x0000000106999366 llvm::sys::RunSignalHandlers() + 86
          2  llvm-ar                  0x000000010699a77e SignalHandler(int) + 366
          3  libsystem_platform.dylib 0x00007fffc01d7b3a _sigtramp + 26
          4  libsystem_platform.dylib 0x0000000114233b4d _sigtramp + 1409663021
          5  libsystem_platform.dylib 0x000000011423e464 _sigtramp + 1409706308
          6  libsystem_platform.dylib 0x0000000114219793 _sigtramp + 1409555571
          7  libsystem_platform.dylib 0x000000011421989e _sigtramp + 1409555838
          8  libdyld.dylib            0x00007fffbffc4282 dyld_stub_binder + 282
          9  llvm-ar                  0x0000000106be2358 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 12850
          10 llvm-ar                  0x000000010681c33c performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 4156
          11 llvm-ar                  0x000000010681ace6 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 1126
          12 llvm-ar                  0x0000000106818599 main + 361
          13 libdyld.dylib            0x00007fffbffc8235 start + 1
          Stack dump:
          0.	Program arguments: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar xo /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libcore-687e6a964d22cbb4.rlib 
          
          Traceback (most recent call last):
            File "/SAPDevelop/src/Swift2WebAssembly/emsdk/emscripten/incoming/emcc", line 13, in <module>
              emcc.run()
            File "/SAPDevelop/src/Swift2WebAssembly/emsdk/emscripten/incoming/emcc.py", line 1419, in run
              final = shared.Building.link(linker_inputs, DEFAULT_FINAL, force_archive_contents=force_archive_contents, temp_files=misc_temp_files, just_calculate=just_calculate)
            File "/SAPDevelop/src/Swift2WebAssembly/emsdk/emscripten/incoming/tools/shared.py", line 1774, in link
              Building.read_link_inputs(filter(lambda x: not x.startswith('-'), files))
            File "/SAPDevelop/src/Swift2WebAssembly/emsdk/emscripten/incoming/tools/shared.py", line 1700, in read_link_inputs
              raise Exception('llvm-ar failed on archive ' + archive_names[n] + '!')
          Exception: llvm-ar failed on archive /Users/i852946/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/wasm32-unknown-emscripten/lib/libstd-f4594d3e53dcb114.rlib!
          

error: aborting due to previous error

I've also reported this to the Rust project since I'm not sure where the problem lies.

kripken · Jul 24, 2017

This stuff looks like a weird OS X linking issue. I don't know much about OS X, but it looks like a problem between your system libs and the build of LLVM. Maybe linked on another machine with other system libs or something like that?

dyld: Symbol not found: _futimens
            Referenced from: /SAPDevelop/src/Swift2WebAssembly/emsdk/clang/fastcomp/build_incoming_64/bin/llvm-ar
            Expected in: /usr/lib/libSystem.B.dylib

What is Swift2WebAssembly, btw?

kripken · Jul 24, 2017

(oops, hit wrong button before)

jedisct1 · Aug 29, 2017

Same issue here, but I'm not using Rust, just emcc.

See https://gist.github.com/f5066409ceeab4e254149d9b6c374bc0

This happens while compiling libsodium.js, with the incoming branch of emscripten.

macOS 10.12, Xcode 9b6.

OlegSmelov · Sep 29, 2017

Workaround. I used homebrew instead, but encountered the same problem. Since there's something wrong with llvm-ar, I used llvm-ar from llvm homebrew package instead:

brew install llvm
mv /usr/local/opt/emscripten/libexec/llvm/bin/llvm-ar /usr/local/opt/emscripten/libexec/llvm/bin/llvm-ar.old
ln -s /usr/local/opt/llvm/bin/llvm-ar /usr/local/opt/emscripten/libexec/llvm/bin/llvm-ar

Change paths where necessary.

n8gray · Oct 3, 2017

@kripken: I just noticed your question! Swift2WebAssembly was me trying to hack the Swift compiler to produce wasm. I didn't make any progress to speak of. :(

trzecieu · Oct 18, 2017

Here is some trace of investigation:

1

It looks connected to rust-lang/rust#42997
What in fact is caused by having XCode9 and macOS10.12: (other case: https://gitlab.kitware.com/cmake/cmake/issues/17101)
I've tried to compile locally sdk-incoming and it looks that it's not compilation environment specific problem.

2

Some fixes in the upstream project: llvm-mirror/llvm@0e3a936#diff-2eeb0237a3e7842df96b4c1280614125
Looks that the flag is propagated nicely further to Makefiles, but during compilation I've got

In file included from /Users/piotr.paczkowski/SDK/emsdk_git/clang/fastcomp/src/lib/Support/Path.cpp:1174:
/Users/piotr.paczkowski/SDK/emsdk_git/clang/fastcomp/src/lib/Support/Unix/Path.inc:462:7: error: 'futimens' is only available on macOS 10.13 or newer [-Werror,-Wunguarded-availability-new]
  if (::futimens(FD, Times))
      ^~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/include/sys/stat.h:373:5: note: 'futimens' has been explicitly marked partial here
int     futimens(int __fd, const struct timespec __times[2]) __API_AVAILABLE(macosx(10.13), ios(11.0), tvos(11.0), watchos(4.0));
        ^
/Users/piotr.paczkowski/SDK/emsdk_git/clang/fastcomp/src/lib/Support/Unix/Path.inc:462:7: note: enclose 'futimens' in a __builtin_available check to silence this warning
  if (::futimens(FD, Times))
      ^~~~~~~~~~

3

This looks that the test check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS) # returns false positive result.
Strangely I haven't found anything extra in the upstream project to prevent using futimens.

4

Once I've forced flag HAVE_FUTIMENS=0 and I've compiled llvm-ar, it works nicely.

Update

OK It looks that I had a problem with a false positive results due a CMakeCache, after removing the build folder it has started to work, here you can find a PR: emscripten-core/emscripten-fastcomp#200

opiepj · Oct 30, 2017

Just upgraded my emsdk to 1.37.22 and getting the same issue

trzecieu · Oct 30, 2017

The fix should be a part of version 1.37.23, what's unreleased yet at the moment.

notedit · Nov 15, 2017

version 1.37.22 same issue

thomaswmanion · Nov 22, 2017

How do you get 1.37.23? It doesn't look like it is available through the emsdk.

rspq · Nov 23, 2017

I followed the script at https://github.com/GodotBuilder/godot-builds/pull/9/files, worked a treat

ghost · Dec 7, 2017

So, emscripten on macOS is basically broken until 1.37.23 is released? That's ridiculous. This should have a hot fix.

dasa · Dec 7, 2017

1.37.24 was released 3 days ago: https://github.com/kripken/emscripten/releases

kripken · Dec 7, 2017

There may be an issue with the emsdk fetching it, though (our bots don't seem to, I'm not sure why - might need to wait for @juj to get back and look at it). Otherwise, though, the emsdk should be able to fetch incoming (instead of a tag) and build that.

ghost · Dec 7, 2017

I used the package at https://s3.amazonaws.com/mozilla-games/emscripten/releases/emsdk-portable.tar.gz that the link on the official website points to. ./emsdk install latest did not give me a newer version. I did it yesterday and today. Are the binaries always a couple of releases behind?

kripken · Dec 7, 2017

The binaries need to be built by the bots, yes, and there is a problem there that only @juj can investigate.

But if you install incoming using the sdk, that will work (it will build the binaries for you locally), http://kripken.github.io/emscripten-site/docs/tools_reference/emsdk.html?highlight=emsdk%20incoming#how-do-i-track-the-latest-emscripten-development-with-the-sdk

dasa · Dec 7, 2017

1.37.24 is available using Homebrew.

kripken · Dec 7, 2017

Interesting, thanks @dasa - I wasn't aware brew had frequent updates of emscripten. Perhaps our docs should suggest using it on OS X?

dasa · Dec 7, 2017

Yeah, @ilovezfs seems to be keeping it updated:
https://github.com/Homebrew/homebrew-core/commits/master/Formula/emscripten.rb

ghost · Dec 7, 2017

Huh, yes, that sounds like a good idea to me. I'm already using Homebrew and would've installed it via that if I that had been one of the endorsed ways of installing it. I might've installed it that way in any case if I had known about it, but I tend to expect that the official install method gives me a fresher release than a package manager. I think I've seen some CLI installers actually use Homebrew if it's available?

allenGKC · Dec 19, 2017

@rspq I have tried your method and works well. Thanks very much

ilovezfs · Dec 19, 2017

Is this now fixed? I'm confused why we still have people talking about workarounds.

olilarkin · Dec 20, 2017

I have this issue after following the instructions here on macos 10.12 http://kripken.github.io/emscripten-site/docs/getting_started/downloads.html

shawwn · Dec 21, 2017

I'm having this issue when trying to use wargo:

https://github.com/lord/wargo

cargo new --bin meow
cd meow
wargo build

The wargo build step fails.

pengbins · Dec 22, 2017

Just install emsdk to 1.37.26 and getting the same issue

  Referenced from: /Users/me/tools/emsdk-portable/clang/e1.37.26_64bit/llvm-ar (which was built for Mac OS X 10.13)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: _futimens
  Referenced from: /Users/me/tools/emsdk-portable/clang/e1.37.26_64bit/llvm-ar (which was built for Mac OS X 10.13)
  Expected in: /usr/lib/libSystem.B.dylib

0  llvm-ar                  0x00000001014e2d88 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1  llvm-ar                  0x00000001014e3336 SignalHandler(int) + 358
2  libsystem_platform.dylib 0x00007fffbccf8b3a _sigtramp + 26
3  libsystem_platform.dylib 0x00000001057cab4d _sigtramp + 1219305517
4  libsystem_platform.dylib 0x00000001057d5464 _sigtramp + 1219348804
5  libsystem_platform.dylib 0x00000001057b0793 _sigtramp + 1219198067
6  libsystem_platform.dylib 0x00000001057b089e _sigtramp + 1219198334
7  libdyld.dylib            0x00007fffbcae5282 dyld_stub_binder + 282
8  llvm-ar                  0x0000000101719340 (anonymous namespace)::DarwinX86AsmBackend::getCompactUnwindRegNum(unsigned int) const::CU64BitRegs + 10650
9  llvm-ar                  0x00000001013aae6d performOperation(ArchiveOperation, llvm::object::Archive*, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 2013
10 llvm-ar                  0x00000001013aa0a2 performOperation(ArchiveOperation, std::__1::vector<llvm::NewArchiveMember, std::__1::allocator<llvm::NewArchiveMember> >*) + 930
11 llvm-ar                  0x00000001013a7c99 main + 361
12 libdyld.dylib            0x00007fffbcae9235 start + 1
Stack dump:
0.	Program arguments: /Users/me/tools/emsdk-portable/clang/e1.37.26_64bit/llvm-ar xo /Users/me/XXXX.a

Traceback (most recent call last):
  File "/Users/me/tools/emsdk-portable/emscripten/1.37.26/em++", line 16, in <module>
    emcc.run()

hjs062 · Dec 24, 2017

In my case(macOS 10.12.6, emscripten 1.37.27), I got this issue because virtual destructors.

.cpp including virtual destructors was compiled, but was not linked.(I don't know why.)

If virtual destructors are unnecessary, try not to use that .

class A
{
public:
A();
~A();
};
is ok.

class A
{
public:
A();
virtual ~A();
};
is not ok.

class A
{
public:
A();
~A();
virtual void B();
};
is ok.

MisterFister666 · Dec 26, 2017

Still hosed. emscription 1.37.27, osx 10.11.6

Any chance of getting a fix? This is a complete, pencils down, stop work sortof bug.

rbalicki2 · Dec 31, 2017

Does anyone know whether this works on high sierra?

shawwn · Dec 31, 2017

This issue is causing a lot of problems for a lot of users. Can anyone invest some time into fixing this? The parcel-bundler team wants to integrate Rust via Wargo, but this is currently blocking us.

…

On Sat, Dec 30, 2017 at 10:38 PM, Robert Balicki ***@***.***> wrote: Does anyone know whether this works on high sierra? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#5418 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AADo8NP0cvZ3B3KCrqJFo4axgWu99a2Dks5tFw_GgaJpZM4Ohf4x> .

dasa · Dec 31, 2017

Does anyone know whether this works on high sierra?

I haven't had this problem since upgrading to High Sierra.

MisterFister666 · Jan 1, 2018

It's definitely some bug with emscription's copy of llvm-ar.

. i did what was suggested above, and installed llvm using homebrew.
. then i removed the llvm-ar that emscripten installed in
emsdk-portable/clang/e1.37.27_64bit/
. then i made a symbolic link in the emscription directory where i removed the llvm-ar to the working llvm-ar installed by homebrew (in my case the call was:
'ln -s /usr/local/opt/llvm/bin/llvm-ar ~/local/bin/emsdk-portable/clang/e1.37.27_64bit/llvm-ar'
)

After that, the bug stopped and I was able to successfully compile C to js.

juj · Jan 3, 2018

Looking into this now..

juj · Jan 3, 2018

The issue is the same as here: emscripten-core/emscripten-fastcomp#200, but for some reason the PR to fix did not apparently catch all cases.

This is now tackled in two ways:

In emsdk, if building from source on macOS SDK < 10.13, -DHAVE_FUTIMENS=0 is passed to the build: emscripten-core/emsdk@f3ac553
The macOS build systems have been updated to build targeting macOS SDKs 10.11, where this symbol was not present.

I'm having trouble verifying since I don't have an actual macOS 10.11 device at hand. It would be great to hear from someone who does, whether after git pulling latest emsdk emsdk install sdk-incoming-64bit works properly after that commit?

shawwn · Jan 3, 2018

I have macOS 10.12. Would that help? @juj if you want to hop on Parcel Bundler's slack and shoot me a message, I can help debug this in real time with you. https://github.com/parcel-bundler/parcel

…

On Wed, Jan 3, 2018 at 2:45 PM, juj ***@***.***> wrote: The issue is the same as here: emscripten-core/emscripten-fastcomp#200 <emscripten-core/emscripten-fastcomp#200>, but for some reason the PR to fix did not apparently catch all cases. This is now tackled in two ways: 1. In emsdk, if building from source on macOS SDK < 10.13, -DHAVE_FUTIMENS=0 is passed to the build: ***@***.*** <emscripten-core/emsdk@f3ac553> 2. The macOS build systems have been updated to build targeting macOS SDKs 10.11, where this symbol was not present. I'm having trouble verifying since I don't have an actual macOS 10.11 device at hand. It would be great to hear from someone who does, whether after git pulling latest emsdk emsdk install sdk-incoming-64bit works properly after that commit? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#5418 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AADo8KgeRTdJ1hI3hO2zD0JPGzUBl3STks5tG-bsgaJpZM4Ohf4x> .

urkle · Jan 8, 2018

@juj is there prebuilt build I can test to verify the fixes to the build system?

bzz · Mar 31, 2018

Updating to 1.37.36 (and installing python2 as a workaround for #6275) solved the issue on macOS 10.12 for me.

Thank you all!

juj · Apr 4, 2018

I'll close this as fixed, I think we should actually now be double fixing this issue since we are using devernay/xcodelegacy to explicitly pin to an older macOS SDK to keep supporting old versions.

kripken closed this Jul 24, 2017

kripken reopened this Jul 24, 2017

mosra added a commit to mosra/corrade that referenced this issue Oct 3, 2017

package/ci: work around Emscripten build issue on the CI.
emscripten-core/emscripten#5418 (comment) Hopefully just a temporary thing.

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mosra added a commit to mosra/corrade that referenced this issue Oct 3, 2017

package/ci: work around Emscripten build issue on the CI.
emscripten-core/emscripten#5418 (comment) Hopefully just a temporary thing.

d9b5d4a

eska014 referenced this issue Oct 12, 2017
Merged
Fix bug with Emscripten's llvm-ar on OS X #9

trzecieu pushed a commit to trzecieu/emscripten-fastcomp that referenced this issue Oct 18, 2017

Cherrypick: Fix cmake check for futimens on macOS
Fix for emscripten-core/emscripten#5418 Where on macOS <10.13 a flag HAVE_FUNTIMENS was incorrectly set to 1

0d02a2d

This was referenced Oct 18, 2017

Closed

Cherrypick from 4.0.1: Fix cmake check for futimens on macOS emscripten-core/emscripten-fastcomp#200

Merged

Re-apply "Fix cmake check for futimens when deploying to earlier macOS releases emscripten-core/emscripten-fastcomp#201

ncannasse referenced this issue Nov 27, 2017
Closed
try to compile sample on mac #2

hallcristobal referenced this issue Dec 26, 2017
Closed
Can't get it to compile on Mac OS 10.12 #59

rbalicki2 referenced this issue Dec 31, 2017
Closed
`cargo web start` fails #62

juj self-assigned this Jan 3, 2018

kripken added the Important label Jan 3, 2018

bzz referenced this issue Mar 31, 2018
Closed
emsdk install failing #6275

juj closed this Apr 4, 2018

allenGKC referenced this issue Apr 13, 2018
Open
OpenCV.js 入门 #9

chicoxyzzy referenced this issue Dec 10, 2018
Open
Unable to compile hello_world.rs to wasm #42997

emscripten-core/emscripten

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Mac linker error: dyld: Symbol not found: _futimens #5418

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