[SOLVED] My (failed) attempts to install wsdd-native on a 10-year old Mac with macOS Big Sur

GwynethLlewelyn commented 4 months ago

Hi there! 👋

First and foremost: thank you for developing such an awesome tool. For five years or so, my co-living partner (who only uses Windows) is utterly unable to see any machine on the network, except for the printer (which does use WSDD) and the Synology NAS (which apparently also uses WSDD, but what exactly they use to implement it is unknown — it seems to work "as by magic"). Other machines in the network include my personal Mac, a Raspberry Pi, a laptop 20running Linux, and who knows what else. None of these will be seen by her Windows 10 machine(s), although the opposite works (to a degree)!

Anyway, time to get your nice little native tool working!

I've started with my ancient Mac. It's a MacBook Pro (Retina, 15-inch, Mid 2014) running macOS 11.7.9. I'm well aware this is both ancient hardware and unsupported software, both having reached EOL for years now. It's a pity because the machine works flawlessly (it did get repaired a few times; not all components inside it are from 2014!). Since it's also my "work" machine — and I cannot afford to replace it — it means that I'm limited to the degree of tinkering I'm willing to do.

A very annoying issue is that the Homebrew team clings to Apple's mandatory obsolescence rules, and they refuse to go that back in time. While macOS Big Sur flawlessly runs all things installed via Homebrew, these days, everything non-casked requires localy compiling packages, which obviously takes eternities and might fail. In some cases, I managed to get things compiling by switching from the Apple-provided clang to, say, GCC. In others i required a bit more work. And many I simply couldn't figure out how to compile things properly. That said... wsdd-native gets flawlessly installed via Homebrew, and, as far as I can see, it does configure itself properly, hooks itself up wth launchd, etc.

Unfortunately, however, any attempt to actually run it will terminate with a Segmentation fault: 11. I tried to enable core dumps using sudo launchctl limit core unlimited, but nothing is ever written to /cores (as the man page suggests). I'm aware that you don't recommend using something that old (e.g., the MacOSX13.0 SDK is a requirement) and thus the access error to invalid memory, possibly when attempting to load something from a shared library which is not in the 'expected' place (or doesn't exist at all).

So, the best I can offer is a dump from otool as I see on my system:

Dump of otool -LIvPC /usr/local/bin/wsddn

```sh $ /usr/local/bin/wsddn: /usr/lib/libxml2.2.dylib (compatibility version 10.0.0, current version 10.9.0) time stamp 2 Thu Jan 1 01:00:02 1970 /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration (compatibility version 1.0.0, current version 1296.0.1) time stamp 2 Thu Jan 1 01:00:02 1970 /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory (compatibility version 1.0.0, current version 1.0.0) time stamp 2 Thu Jan 1 01:00:02 1970 /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 2048.1.255) time stamp 2 Thu Jan 1 01:00:02 1970 /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 1600.151.0) time stamp 2 Thu Jan 1 01:00:02 1970 /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1336.0.0) time stamp 2 Thu Jan 1 01:00:02 1970 Linker optimiztion hints (0 total bytes) Indirect symbols for (__TEXT,__stubs) 303 entries address index name 0x0000000100003f80 148 _CFAllocatorAllocate 0x0000000100003f86 149 _CFAllocatorDeallocate 0x0000000100003f8c 150 _CFArrayCreate 0x0000000100003f92 151 _CFArrayGetCount 0x0000000100003f98 152 _CFArrayGetValueAtIndex 0x0000000100003f9e 153 _CFDictionaryCreate 0x0000000100003fa4 154 _CFDictionaryGetTypeID 0x0000000100003faa 155 _CFDictionaryGetValue 0x0000000100003fb0 157 _CFErrorCopyDescription 0x0000000100003fb6 158 _CFErrorGetCode 0x0000000100003fbc 159 _CFErrorGetDomain 0x0000000100003fc2 160 _CFGetTypeID 0x0000000100003fc8 162 _CFRelease 0x0000000100003fce 163 _CFRetain 0x0000000100003fd4 164 _CFStringCompare 0x0000000100003fda 165 _CFStringCreateWithCharacters 0x0000000100003fe0 166 _CFStringCreateWithCharactersNoCopy 0x0000000100003fe6 167 _CFStringGetCStringPtr 0x0000000100003fec 168 _CFStringGetCharacters 0x0000000100003ff2 169 _CFStringGetCharactersPtr 0x0000000100003ff8 170 _CFStringGetLength 0x0000000100003ffe 171 _CFStringGetTypeID 0x0000000100004004 172 _ODNodeCopyRecord 0x000000010000400a 173 _ODNodeCreateRecord 0x0000000100004010 174 _ODNodeCreateWithNodeType 0x0000000100004016 175 _ODQueryCopyResults 0x000000010000401c 176 _ODQueryCreateWithNode 0x0000000100004022 177 _ODRecordCopyValues 0x0000000100004028 178 _ODRecordSetValue 0x000000010000402e 179 _ODRecordSynchronize 0x0000000100004034 180 _SCDynamicStoreCopyValue 0x000000010000403a 181 _SCDynamicStoreCreate 0x0000000100004040 183 __Unwind_Resume 0x0000000100004046 186 __ZNKSt3__110error_code7messageEv 0x000000010000404c 191 __ZNKSt3__14__fs10filesystem4path10__filenameEv 0x0000000100004052 192 __ZNKSt3__14__fs10filesystem4path11__root_nameEv 0x0000000100004058 193 __ZNKSt3__14__fs10filesystem4path13__parent_pathEv 0x000000010000405e 194 __ZNKSt3__14__fs10filesystem4path16__root_directoryEv 0x0000000100004064 195 __ZNKSt3__14__fs10filesystem4path3endEv 0x000000010000406a 196 __ZNKSt3__14__fs10filesystem4path5beginEv 0x0000000100004070 197 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__ZNSt13runtime_errorC2ERKNSt3__112basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE 0x00000001000040dc 217 __ZNSt13runtime_errorC2ERKS_ 0x00000001000040e2 219 __ZNSt13runtime_errorD2Ev 0x00000001000040e8 221 __ZNSt20bad_array_new_lengthC1Ev 0x00000001000040ee 223 __ZNSt3__112__next_primeEm 0x00000001000040f4 224 __ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6appendEPKc 0x00000001000040fa 225 __ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6appendEPKcm 0x0000000100004100 226 __ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6appendEmc 0x0000000100004106 227 __ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6assignEmc 0x000000010000410c 228 __ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE9push_backEc 0x0000000100004112 229 __ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC1ERKS5_ 0x0000000100004118 230 __ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev 0x000000010000411e 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___cxa_allocate_exception 0x000000010000429e 350 ___cxa_atexit 0x00000001000042a4 351 ___cxa_begin_catch 0x00000001000042aa 352 ___cxa_end_catch 0x00000001000042b0 353 ___cxa_free_exception 0x00000001000042b6 354 ___cxa_guard_abort 0x00000001000042bc 355 ___cxa_guard_acquire 0x00000001000042c2 356 ___cxa_guard_release 0x00000001000042c8 358 ___cxa_rethrow 0x00000001000042ce 359 ___error 0x00000001000042d4 361 ___maskrune 0x00000001000042da 362 ___stack_chk_fail 0x00000001000042e0 367 ___toupper 0x00000001000042e6 368 ___udivti3 0x00000001000042ec 369 __os_log_impl 0x00000001000042f2 370 __tlv_atexit 0x00000001000042f8 372 _accept 0x00000001000042fe 373 _atoi 0x0000000100004304 374 _backtrace 0x000000010000430a 375 _bind 0x0000000100004310 376 _chdir 0x0000000100004316 377 _chmod 0x000000010000431c 378 _chown 0x0000000100004322 379 _chroot 0x0000000100004328 380 _close 0x000000010000432e 381 _dladdr 0x0000000100004334 382 _dlsym 0x000000010000433a 383 _dup 0x0000000100004340 384 _dup2 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_xmlXPathFreeContext 0x00000001000e4958 536 _xmlXPathFreeObject 0x00000001000e4960 537 _xmlXPathNewContext 0x00000001000e4968 538 _xmlXPathRegisterNs 0x00000001000e4970 539 _xmlXPathSetContextNode Indirect symbols for (__DATA,__thread_ptrs) 1 entries address index name 0x00000001000e4e30 19 __ZN4asio6detail15keyword_tss_ptrINS0_10call_stackINS0_14thread_contextENS0_16thread_info_baseEE7contextEE6value_E (__TEXT,__info_plist) section CFBundleIdentifier io.github.gershnik.wsddn CFBundleName wsddn CFBundleDisplayName WS-Discovery Host Daemon CFBundleVersion 1.14 CFBundleShortVersionString 1.14 NSHumanReadableCopyright Copyright (c) 2022, Eugene Gershnik CFBundleInfoDictionaryVersion 6.0 ```

That said, I'm not surprised in the least. Of the 650+ packages (formulae & casks) I've got installed via Homebrew, I haven't been able to compile around 20-30 of them. Roughly speaking, therefore, 95% of the packages will compile, but there is a 1 in 20 chance that it won't compile, at least not automatically, therefore, it's time to try to compile wsdd-native manually!

I have Homebrew's Clang set by default:

Homebrew clang version 18.1.7
Target: x86_64-apple-darwin20.6.0
Thread model: posix
InstalledDir: /usr/local/opt/llvm/bin

which CMake (3.29.6, also from Homebrew) correctly identifies:

-- The C compiler identification is Clang 18.1.7
-- The CXX compiler identification is Clang 18.1.7

(but I have more compiler options, as I'll describe further below)

The first question I have is — why the need to use libuuid-populate which gets pulled & compiled from util-linux? macOS, via Homebrew, perfectly supports the OSSP uuid library (brew install ossp-uuid), just like anything based on Debian (apt install uuid). I'm just asking because it's clear from the logs that the compiler grumbles a bit about it (but fortunately does not throw an error). Anyway, here is what happens with a Clang compilation:

cmake --build out (Homebrew Clang 18.1.7)

```make [ 1%] Building CXX object _deps/fmt-build/CMakeFiles/fmt.dir/src/format.cc.o In file included from /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/src/format.cc:8: In file included from /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/format-inl.h:18: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/locale:202: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__locale:23: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string:625: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string_view:213: /usr/local/opt/llvm/bin/../include/c++/v1/__fwd/string_view.h:22:41: warning: 'char_traits' is deprecated: char_traits for T not equal to char, wchar_t, char8_t, char16_t or char32_t is non-standard and is provided for a temporary period. It will be removed in LLVM 19, so please migrate off of it. [-Wdeprecated-declarations] 22 | template > | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:361:26: note: in instantiation of default argument for 'basic_string_view' required here 361 | template using std_string_view = std::basic_string_view; | ^~~~~ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:452:50: note: in instantiation of template type alias 'std_string_view' requested here 452 | S, detail::std_string_view>::value)> | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/format.h:737:57: note: in instantiation of template class 'fmt::basic_string_view' requested here 737 | inline auto compute_width(basic_string_view s) -> size_t { | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__string/char_traits.h:81:8: note: 'char_traits' has been explicitly marked deprecated here 81 | struct _LIBCPP_DEPRECATED_( | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__config:975:53: note: expanded from macro '_LIBCPP_DEPRECATED_' 975 | # define _LIBCPP_DEPRECATED_(m) __attribute__((__deprecated__(m))) | ^ 1 warning generated. ``` (repeated several times, wherever `string_view` is called)

and finally:

Errors during the linking phase

```make [...] [ 94%] Linking CXX executable wsddn undef: __ZTVNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE undef: __ZTVNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE undef: __ZTVNSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEE undef: __ZTTNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE undef: ___cxa_init_primary_exception undef: __ZTTNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE undef: __ZNSt13exception_ptr31__from_native_exception_pointerEPv Undefined symbols for architecture x86_64: "vtable for std::__1::basic_ostringstream, std::__1::allocator >", referenced from: void toml::v3::impl::concatenate(char*&, char*, unsigned long long const&) in lto.o void toml::v3::impl::error_builder::append(int const&) in lto.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. "vtable for std::__1::basic_stringstream, std::__1::allocator >", referenced from: toml::v3::impl::impl_ex::parser::parse_float() in lto.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. "vtable for std::__1::basic_stringbuf, std::__1::allocator >", referenced from: toml::v3::impl::impl_ex::parser::parse_float() in lto.o void toml::v3::impl::concatenate(char*&, char*, unsigned long long const&) in lto.o std::__1::basic_stringstream, std::__1::allocator >::~basic_stringstream() in lto.o void toml::v3::impl::error_builder::append(int const&) in lto.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. "VTT for std::__1::basic_ostringstream, std::__1::allocator >", referenced from: void toml::v3::impl::concatenate(char*&, char*, unsigned long long const&) in lto.o void toml::v3::impl::error_builder::append(int const&) in lto.o "___cxa_init_primary_exception", referenced from: asio::detail::thread_info_base::capture_current_exception() in lto.o "VTT for std::__1::basic_stringstream, std::__1::allocator >", referenced from: toml::v3::impl::impl_ex::parser::parse_float() in lto.o std::__1::basic_stringstream, std::__1::allocator >::~basic_stringstream() in lto.o "std::exception_ptr::__from_native_exception_pointer(void*)", referenced from: asio::detail::thread_info_base::capture_current_exception() in lto.o ld: symbol(s) not found for architecture x86_64 clang++: error: linker command failed with exit code 1 (use -v to see invocation) gmake[2]: *** [CMakeFiles/wsddn.dir/build.make:428: wsddn] Error 1 gmake[1]: *** [CMakeFiles/Makefile2:234: CMakeFiles/wsddn.dir/all] Error 2 gmake: *** [Makefile:136: all] Error 2 ```

Ok, not good. The compilation step works well — no errors, just annoying warnings — but linking fails, and the reasons for the falure are too obscure for me. I can't even figure out which file(s) failed to generate any symbols (lto.c?). I can say that line 428 of CMakeFiles/wsddn.dir/build.make is roughly the following:

426 wsddn: CMakeFiles/wsddn.dir/link.txt
427         @$(CMAKE_COMMAND) -E cmake_echo_color "--switch=$(COLOR)" --green --bold --progress-dir=/Users/gwyneth/Developer/wsdd-native/out/CMakeFiles --progress-num=$(CMAKE_PROGRESS_20) "Linking CXX executable wsddn"
428         $(CMAKE_COMMAND) -E cmake_link_script CMakeFiles/wsddn.dir/link.txt --verbose=$(VERBOSE)
429         dsymutil /Users/gwyneth/Developer/wsdd-native/out/wsddn -o /Users/gwyneth/Developer/wsdd-native/out/wsddn.dSYM
430         codesign --force --sign - --timestamp=none --options runtime /Users/gwyneth/Developer/wsdd-native/out/wsddn
431

while line 234 on CMakeFiles/Makefile2 is:

232 CMakeFiles/wsddn.dir/all: _deps/spdlog-build/CMakeFiles/spdlog.dir/all
233         $(MAKE) $(MAKESILENT) -f CMakeFiles/wsddn.dir/build.make CMakeFiles/wsddn.dir/depend
234         $(MAKE) $(MAKESILENT) -f CMakeFiles/wsddn.dir/build.make CMakeFiles/wsddn.dir/build
235         @$(CMAKE_COMMAND) -E cmake_echo_color "--switch=$(COLOR)" --progress-dir=/Users/gwyneth/Developer/wsdd-native/CMakeFiles --progress-num=33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52 "Built target wsddn"
236 .PHONY : CMakeFiles/wsddn.dir/all
237

I'd be more than glad to provide you with additional information, if you need.

Oh well. When Clang fails a compilation... it's time to switch to GCC!

For good measure, I'm also exporting the CC and CXX flags, although cmake should handle that properly...

$ export CC=/usr/local/bin/gcc-14
$ export CXX=/usr/local/bin/g++-14
$ cmake -S . -B out -DCMAKE_BUILD_TYPE=RelWithDebInfo -DFETCHCONTENT_QUIET=OFF .. -DCMAKE_C_COMPILER=/usr/local/bin/gcc-14 -DCMAKE_CXX_COMPILER=/usr/local/bin/g++-14

Unfortunately, it seems that GCC is including files from the MacOSX12.1.sdk, but I'm stuck with 11.7.9:

Logs of building with the 'wrong' SDK...

```make [...] [ 21%] Building CXX object _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/src/unicode_mappings.cpp.o In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/include/Availability.h:136, from /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/include/sys/_types/_fd_def.h:32, from /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/include/sys/types.h:184, from /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:16, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/inc/sys_string/config.h:17, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/inc/sys_string/impl/unicode/utf_encoding.h:33, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/inc/sys_string/impl/unicode/mappings.h:11, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/src/unicode_mappings.cpp:11: /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFUserNotification.h:126:70: error: attributes are not allowed on a function-definition 126 | CF_INLINE CFOptionFlags CFUserNotificationCheckBoxChecked(CFIndex i) API_AVAILABLE(macos(10.0)) API_UNAVAILABLE(ios, watchos, tvos) {return ((CFOptionFlags)(1UL << (8 + i)));} | ^~~~~~~~~~~~~ /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFUserNotification.h:127:70: error: attributes are not allowed on a function-definition 127 | CF_INLINE CFOptionFlags CFUserNotificationSecureTextField(CFIndex i) API_AVAILABLE(macos(10.0)) API_UNAVAILABLE(ios, watchos, tvos) {return ((CFOptionFlags)(1UL << (16 + i)));} | ^~~~~~~~~~~~~ /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFUserNotification.h:128:69: error: attributes are not allowed on a function-definition 128 | CF_INLINE CFOptionFlags CFUserNotificationPopUpSelection(CFIndex n) API_AVAILABLE(macos(10.0))API_UNAVAILABLE(ios, watchos, tvos) {return ((CFOptionFlags)(n << 24));} | ^~~~~~~~~~~~~ gmake[2]: *** [_deps/sys_string-build/lib/CMakeFiles/sys_string.dir/build.make:86: _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/src/unicode_mappings.cpp.o] Error 1 gmake[1]: *** [CMakeFiles/Makefile2:312: _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/all] Error 2 gmake: *** [Makefile:136: all] Error 2 ```

All right, a quick ugrep:

$ ugrep MacOSX1 *
out/CMakeCache.txt
   210:   CMAKE_OSX_SYSROOT:PATH=/Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk
   459:   LIBXML2_INCLUDE_DIR:PATH=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/include/libxml2
   462:   LIBXML2_LIBRARY:FILEPATH=/Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/lib/libxml2.tbd
   607:   pkgcfg_lib_PC_LIBXML_xml2:FILEPATH=/Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/lib/libxml2.tbd
   851:   FIND_PACKAGE_MESSAGE_DETAILS_LibXml2:INTERNAL=[/Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/lib/libxml2.tbd][/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/include/libxml2][v2.9.4()]
   964:   PC_LIBXML_INCLUDEDIR:INTERNAL=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/include
   976:   PC_LIBXML_PREFIX:INTERNAL=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr

Uh-huh. What a mess we have here. That's ok, let's force the culprits to the "correct" libraries:

$ cmake -S . -B out -DCMAKE_BUILD_TYPE=RelWithDebInfo -DFETCHCONTENT_QUIET=OFF .. -DCMAKE_C_COMPILER=/usr/local/bin/gcc -DCMAKE_CXX_COMPILER=/usr/local/bin/g++ -DCMAKE_OSX_SYSROOT=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -DLIBXML2_LIBRARY=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/lib/libxml2.tbd -Dpkgcfg_lib_PC_LIBXML_xml2=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/lib/libxml2.tbd
[...]
WSDDN_VERSION:1.14
-- The C compiler identification is GNU 14.1.0
-- The CXX compiler identification is GNU 14.1.0
[...]

No luck, though:

Building with GCC 14 and the 'correct' SDK

```make [...] [ 21%] Building CXX object _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/src/unicode_mappings.cpp.o In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/include/Availability.h:136, from /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/include/sys/_types/_fd_def.h:32, from /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/include/sys/types.h:184, from /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:16, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/inc/sys_string/config.h:17, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/inc/sys_string/impl/unicode/utf_encoding.h:33, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/inc/sys_string/impl/unicode/mappings.h:11, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/src/unicode_mappings.cpp:11: /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFUserNotification.h:126:70: error: attributes are not allowed on a function-definition 126 | CF_INLINE CFOptionFlags CFUserNotificationCheckBoxChecked(CFIndex i) API_AVAILABLE(macos(10.0)) API_UNAVAILABLE(ios, watchos, tvos) {return ((CFOptionFlags)(1UL << (8 + i)));} | ^~~~~~~~~~~~~ /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFUserNotification.h:127:70: error: attributes are not allowed on a function-definition 127 | CF_INLINE CFOptionFlags CFUserNotificationSecureTextField(CFIndex i) API_AVAILABLE(macos(10.0)) API_UNAVAILABLE(ios, watchos, tvos) {return ((CFOptionFlags)(1UL << (16 + i)));} | ^~~~~~~~~~~~~ /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFUserNotification.h:128:69: error: attributes are not allowed on a function-definition 128 | CF_INLINE CFOptionFlags CFUserNotificationPopUpSelection(CFIndex n) API_AVAILABLE(macos(10.0))API_UNAVAILABLE(ios, watchos, tvos) {return ((CFOptionFlags)(n << 24));} | ^~~~~~~~~~~~~ gmake[2]: *** [_deps/sys_string-build/lib/CMakeFiles/sys_string.dir/build.make:86: _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/src/unicode_mappings.cpp.o] Error 1 gmake[1]: *** [CMakeFiles/Makefile2:312: _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/all] Error 2 gmake: *** [Makefile:136: all] Error 2 ```

All right, so maybe GCC 14 is "too new"? After installing gcc-13 from Homebrew (which has 13.3 — how far back in time should I go?), here are the results:

$ export CXX=/usr/local/bin/g++-13
$ export CC=/usr/local/bin/gcc-13
$ cmake -S . -B out -DCMAKE_BUILD_TYPE=RelWithDebInfo -DFETCHCONTENT_QUIET=OFF .. -DCMAKE_C_COMPILER=/usr/local/bin/gcc-13 -DCMAKE_CXX_COMPILER=/usr/local/bin/g++-13 -DCMAKE_OSX_SYSROOT=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -DLIBXML2_LIBRARY=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/lib/libxml2.tbd -Dpkgcfg_lib_PC_LIBXML_xml2=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/lib/libxml2.tbd[ADeveloper/CommandLineTools/SDKs/MacOSX11.sdk/usr/lib/libxml2.tbd
[...]
WSDDN_VERSION:1.14
-- The C compiler identification is GNU 13.3.0
-- The CXX compiler identification is GNU 13.3.0
[...]

No problems at this stage (none were expected), but, alas, compiling is out of the question:

Building with GCC 13.3

```make [...] [ 19%] Built target spdlog [ 19%] Built target argum [ 21%] Building CXX object _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/src/unicode_mappings.cpp.o In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/include/Availability.h:136, from /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/include/sys/_types/_fd_def.h:32, from /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/include/sys/types.h:184, from /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:16, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/inc/sys_string/config.h:17, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/inc/sys_string/impl/unicode/utf_encoding.h:33, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/inc/sys_string/impl/unicode/mappings.h:11, from /Users/gwyneth/Developer/wsdd-native/out/_deps/sys_string-src/lib/src/unicode_mappings.cpp:11: /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFUserNotification.h:126:70: error: attributes are not allowed on a function-definition 126 | CF_INLINE CFOptionFlags CFUserNotificationCheckBoxChecked(CFIndex i) API_AVAILABLE(macos(10.0)) API_UNAVAILABLE(ios, watchos, tvos) {return ((CFOptionFlags)(1UL << (8 + i)));} | ^~~~~~~~~~~~~ /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFUserNotification.h:127:70: error: attributes are not allowed on a function-definition 127 | CF_INLINE CFOptionFlags CFUserNotificationSecureTextField(CFIndex i) API_AVAILABLE(macos(10.0)) API_UNAVAILABLE(ios, watchos, tvos) {return ((CFOptionFlags)(1UL << (16 + i)));} | ^~~~~~~~~~~~~ /Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFUserNotification.h:128:69: error: attributes are not allowed on a function-definition 128 | CF_INLINE CFOptionFlags CFUserNotificationPopUpSelection(CFIndex n) API_AVAILABLE(macos(10.0))API_UNAVAILABLE(ios, watchos, tvos) {return ((CFOptionFlags)(n << 24));} | ^~~~~~~~~~~~~ gmake[2]: *** [_deps/sys_string-build/lib/CMakeFiles/sys_string.dir/build.make:86: _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/src/unicode_mappings.cpp.o] Error 1 gmake[1]: *** [CMakeFiles/Makefile2:312: _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/all] Error 2 gmake: *** [Makefile:136: all] Error 2 ```

The End...?

I would guess that this "proves" that wsdd-native really can't be compiled under such an ancient setup as mine. Although, to be perfectly honest, there is a bit more that I can do, namely, trying to install the MacOSX13 SDK, and see what happens with that one. Theoretically, this should mess things up even more. But it might help with those obsolete declarations, which I'm presuming that they do not come from your code at all, but rather from the installed libraries (

But, on the other hand, I already have the 12 SDK installed — which I shouldn't, since Big Sur is still 11.X — and there seems to be no problem there. So, maybe, using a modern Clang (the one from Homebrew) and a more recent SDK version may result in a successful compilation?... perhaps. Or it might just compile... and then segfault 😭

I might try that approach too, though. But first I wanted to get some feedback.

GwynethLlewelyn commented 4 months ago

Update! Another potential solution! [no, it doesn't work, either]

So, why is the stupid linker not working properly?

After browsing a bit around the Web, and looking at the logs, namely out/CMakeFiles/wsddn.dir/link.txt, it suddenly dawned on me: by default, CMake 'assumes' that it's the compiler that calls the linker, but it's actually hard to pass flags between both. And, sure thing, a few peeking here and there showed me that CMake was invoking /usr/bin/ld — which is Apple's native LLVM linker (13.0.0) and not the Homebrew version! While theoretically this ought to me irrelevant under the LLVM environment (one assumes that the intermediate representation bytecode doesn't change that easily), there could be some differences. Let's find out!

$ export CC=/usr/local/opt/llvm/bin/clang
$ export CXX=/usr/local/opt/llvm/bin/clang++
$ export LDFLAGS="-L/usr/local/opt/bison/lib -fuse-ld=/usr/local/opt/llvm/bin/ld64.lld"
$ cmake -S . -B out -DCMAKE_BUILD_TYPE=RelWithDebInfo -DFETCHCONTENT_QUIET=OFF -DCMAKE_C_COMPILER=/usr/local/opt/llvm/bin/clang -DCMAKE_CXX_COMPILER=/usr/local/opt/llvm/bin/clang++ -DCMAKE_LINKER=/usr/local/opt/llvm/bin/ld64.lld -DCMAKE_OSX_SYSROOT=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -DLIBXML2_LIBRARY=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/lib/libxml2.tbd -Dpkgcfg_lib_PC_LIBXML_xml2=/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk/usr/lib/libxml2.tbd -DCMAKE_LINKER_TYPE=lld_launcher -DCMAKE_C_USING_LINKER_lld_launcher="-fuse-ld=/usr/local/opt/llvm/bin/ld64.lld" -DCMAKE_CXX_USING_LINKER_lld_launcher="-fuse-ld=/usr/local/opt/llvm/bin/ld64.lld" ..

Note that very likely setting CC, CXX, and LDFLAGSexplicitly are not necessary (also, the inclusion of bison on the LDFLAGS comes from building another set of unrelated tools; I didn't check if bison is actually being used or not)

I'm posting the whole compilation transcript here, from the very beginning, because, as you can see, the included vendor libraries, which are statically linked, work flawlessly under this configuration (so it's not a linker error per se). It's just wsddn that fails to get properly linked due to some missing symbols:

cmake --build out, now for Homebrew Clang + correct linker

```make [ 1%] Building CXX object _deps/fmt-build/CMakeFiles/fmt.dir/src/format.cc.o In file included from /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/src/format.cc:8: In file included from /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/format-inl.h:18: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/locale:202: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__locale:23: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string:625: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string_view:213: /usr/local/opt/llvm/bin/../include/c++/v1/__fwd/string_view.h:22:41: warning: 'char_traits' is deprecated: char_traits for T not equal to char, wchar_t, char8_t, char16_t orchar32_t is non-standard and is provided for a temporary period. It will be removed in LLVM 19, so please migrate off of it. [-Wdeprecated-declarations] 22 | template > | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:361:26: note: in instantiation of default argument for 'basic_string_view' required here 361 | template using std_string_view = std::basic_string_view; | ^~~~~ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:452:50: note: in instantiation of template type alias 'std_string_view' requested here 452 | S, detail::std_string_view>::value)> | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/format.h:737:57: note: in instantiation of template class 'fmt::basic_string_view' requested here 737 | inline auto compute_width(basic_string_view s) -> size_t { | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__string/char_traits.h:81:8: note: 'char_traits' has been explicitly marked deprecated here 81 | struct _LIBCPP_DEPRECATED_( | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__config:975:53: note: expanded from macro '_LIBCPP_DEPRECATED_' 975 | # define _LIBCPP_DEPRECATED_(m) __attribute__((__deprecated__(m))) | ^ 1 warning generated. [ 3%] Building CXX object _deps/fmt-build/CMakeFiles/fmt.dir/src/os.cc.o In file included from /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/src/os.cc:13: In file included from /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/os.h:14: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/system_error:150: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__system_error/error_category.h:15: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string:625: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string_view:213: /usr/local/opt/llvm/bin/../include/c++/v1/__fwd/string_view.h:22:41: warning: 'char_traits' is deprecated: char_traits for T not equal to char, wchar_t, char8_t, char16_t orchar32_t is non-standard and is provided for a temporary period. It will be removed in LLVM 19, so please migrate off of it. [-Wdeprecated-declarations] 22 | template > | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:361:26: note: in instantiation of default argument for 'basic_string_view' required here 361 | template using std_string_view = std::basic_string_view; | ^~~~~ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:452:50: note: in instantiation of template type alias 'std_string_view' requested here 452 | S, detail::std_string_view>::value)> | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/format.h:737:57: note: in instantiation of template class 'fmt::basic_string_view' requested here 737 | inline auto compute_width(basic_string_view s) -> size_t { | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__string/char_traits.h:81:8: note: 'char_traits' has been explicitly marked deprecated here 81 | struct _LIBCPP_DEPRECATED_( | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__config:975:53: note: expanded from macro '_LIBCPP_DEPRECATED_' 975 | # define _LIBCPP_DEPRECATED_(m) __attribute__((__deprecated__(m))) | ^ 1 warning generated. [ 5%] Linking CXX static library libfmt.a [ 5%] Built target fmt [ 7%] Building CXX object _deps/spdlog-build/CMakeFiles/spdlog.dir/src/spdlog.cpp.o [ 9%] Building CXX object _deps/spdlog-build/CMakeFiles/spdlog.dir/src/stdout_sinks.cpp.o In file included from /Users/gwyneth/Developer/wsdd-native/out/_deps/spdlog-src/src/stdout_sinks.cpp:8: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/mutex:192: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__condition_variable/condition_variable.h:17: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__mutex/unique_lock.h:17: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__system_error/system_error.h:14: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__system_error/error_category.h:15: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string:625: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string_view:213: /usr/local/opt/llvm/bin/../include/c++/v1/__fwd/string_view.h:22:41: warning: 'char_traits' is deprecated: char_traits for T not equal to char, wchar_t, char8_t, char16_t orchar32_t is non-standard and is provided for a temporary period. It will be removed in LLVM 19, so please migrate off of it. [-Wdeprecated-declarations] 22 | template > | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:361:26: note: in instantiation of default argument for 'basic_string_view' required here 361 | template using std_string_view = std::basic_string_view; | ^~~~~ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:452:50: note: in instantiation of template type alias 'std_string_view' requested here 452 | S, detail::std_string_view>::value)> | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/format.h:737:57: note: in instantiation of template class 'fmt::basic_string_view' requested here 737 | inline auto compute_width(basic_string_view s) -> size_t { | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__string/char_traits.h:81:8: note: 'char_traits' has been explicitly marked deprecated here 81 | struct _LIBCPP_DEPRECATED_( | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__config:975:53: note: expanded from macro '_LIBCPP_DEPRECATED_' 975 | # define _LIBCPP_DEPRECATED_(m) __attribute__((__deprecated__(m))) | ^ 1 warning generated. [ 11%] Building CXX object _deps/spdlog-build/CMakeFiles/spdlog.dir/src/color_sinks.cpp.o In file included from /Users/gwyneth/Developer/wsdd-native/out/_deps/spdlog-src/src/color_sinks.cpp:8: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/mutex:192: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__condition_variable/condition_variable.h:17: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__mutex/unique_lock.h:17: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__system_error/system_error.h:14: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/__system_error/error_category.h:15: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string:625: In file included from /usr/local/opt/llvm/bin/../include/c++/v1/string_view:213: /usr/local/opt/llvm/bin/../include/c++/v1/__fwd/string_view.h:22:41: warning: 'char_traits' is deprecated: char_traits for T not equal to char, wchar_t, char8_t, char16_t orchar32_t is non-standard and is provided for a temporary period. It will be removed in LLVM 19, so please migrate off of it. [-Wdeprecated-declarations] 22 | template > | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:361:26: note: in instantiation of default argument for 'basic_string_view' required here 361 | template using std_string_view = std::basic_string_view; | ^~~~~ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/core.h:452:50: note: in instantiation of template type alias 'std_string_view' requested here 452 | S, detail::std_string_view>::value)> | ^ /Users/gwyneth/Developer/wsdd-native/out/_deps/fmt-src/include/fmt/format.h:737:57: note: in instantiation of template class 'fmt::basic_string_view' requested here 737 | inline auto compute_width(basic_string_view s) -> size_t { | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__string/char_traits.h:81:8: note: 'char_traits' has been explicitly marked deprecated here 81 | struct _LIBCPP_DEPRECATED_( | ^ /usr/local/opt/llvm/bin/../include/c++/v1/__config:975:53: note: expanded from macro '_LIBCPP_DEPRECATED_' 975 | # define _LIBCPP_DEPRECATED_(m) __attribute__((__deprecated__(m))) | ^ 1 warning generated. [ 13%] Building CXX object _deps/spdlog-build/CMakeFiles/spdlog.dir/src/file_sinks.cpp.o [ 15%] Building CXX object _deps/spdlog-build/CMakeFiles/spdlog.dir/src/async.cpp.o [ 17%] Building CXX object _deps/spdlog-build/CMakeFiles/spdlog.dir/src/cfg.cpp.o [ 19%] Linking CXX static library libspdlog.a [ 19%] Built target spdlog [ 19%] Built target argum [ 21%] Building CXX object _deps/sys_string-build/lib/CMakeFiles/sys_string.dir/src/unicode_mappings.cpp.o [ 23%] Linking CXX static library libsys_string.a [ 25%] Built target sys_string [ 25%] Built target isptr [ 25%] Built target ptl [ 26%] Generating include/uuid/uuid.h [ 28%] Building C object _deps/libuuid-build/CMakeFiles/uuid_static.dir/__/util-linux-src/libuuid/src/clear.c.o [ 30%] Building C object _deps/libuuid-build/CMakeFiles/uuid_static.dir/__/util-linux-src/libuuid/src/compare.c.o [ 32%] Building C object _deps/libuuid-build/CMakeFiles/uuid_static.dir/__/util-linux-src/libuuid/src/copy.c.o [ 34%] Building C object 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Building C object _deps/libuuid-build/CMakeFiles/uuid_static.dir/__/util-linux-src/lib/md5.c.o [ 53%] Building C object _deps/libuuid-build/CMakeFiles/uuid_static.dir/__/util-linux-src/lib/sha1.c.o [ 55%] Linking C static library libuuid_static.a [ 55%] Built target uuid_static [ 57%] Building CXX object CMakeFiles/wsddn.dir/cmake_pch.hxx.pch [ 59%] Building CXX object CMakeFiles/wsddn.dir/src/sys_util.cpp.o [ 61%] Building CXX object CMakeFiles/wsddn.dir/src/sys_util_mac.cpp.o [ 63%] Building CXX object CMakeFiles/wsddn.dir/src/interface_monitor_bsd.cpp.o [ 65%] Building CXX object CMakeFiles/wsddn.dir/src/interface_monitor_linux.cpp.o [ 67%] Building CXX object CMakeFiles/wsddn.dir/src/http_request_parser.cpp.o [ 69%] Building CXX object CMakeFiles/wsddn.dir/src/http_request.cpp.o [ 71%] Building CXX object CMakeFiles/wsddn.dir/src/http_response.cpp.o [ 73%] Building CXX object CMakeFiles/wsddn.dir/src/http_server.cpp.o [ 75%] Building CXX object CMakeFiles/wsddn.dir/src/udp_server.cpp.o [ 76%] Building CXX object CMakeFiles/wsddn.dir/src/wsd_server.cpp.o [ 78%] Building CXX object CMakeFiles/wsddn.dir/src/server_manager.cpp.o [ 80%] Building CXX object CMakeFiles/wsddn.dir/src/app_state.cpp.o [ 82%] Building CXX object CMakeFiles/wsddn.dir/src/config.cpp.o [ 84%] Building CXX object CMakeFiles/wsddn.dir/src/config_mac.cpp.o [ 86%] Building CXX object CMakeFiles/wsddn.dir/src/config_samba.cpp.o [ 88%] Building CXX object CMakeFiles/wsddn.dir/src/command_line.cpp.o [ 90%] Building CXX object CMakeFiles/wsddn.dir/src/exc_handling.cpp.o [ 92%] Building CXX object CMakeFiles/wsddn.dir/src/main.cpp.o [ 94%] Linking CXX executable wsddn ld64.lld: error: undefined symbol: std::exception_ptr::__from_native_exception_pointer(void*) >>> referenced by exception_ptr.h:97 (/usr/local/opt/llvm/bin/../include/c++/v1/__exception/exception_ptr.h:97) >>> /tmp/lto.tmp:(symbol asio::detail::thread_info_base::capture_current_exception()+0xc4) ld64.lld: error: undefined symbol: __cxa_init_primary_exception >>> referenced by exception_ptr.h:91 (/usr/local/opt/llvm/bin/../include/c++/v1/__exception/exception_ptr.h:91) >>> /tmp/lto.tmp:(symbol asio::detail::thread_info_base::capture_current_exception()+0xa4) ld64.lld: error: undefined symbol: vtable for std::__1::basic_stringbuf, std::__1::allocator> >>> referenced by sstream:325 (/usr/local/opt/llvm/bin/../include/c++/v1/sstream:325) >>> /tmp/lto.tmp:(symbol toml::v3::impl::impl_ex::parser::parse_float()+0x36c) >>> referenced by sstream:325 (/usr/local/opt/llvm/bin/../include/c++/v1/sstream:325) >>> /tmp/lto.tmp:(symbol void toml::v3::impl::concatenate(char*&, char*, unsigned long long const&)+0xb2) >>> referenced by sstream:1101 (/usr/local/opt/llvm/bin/../include/c++/v1/sstream:1101) >>> /tmp/lto.tmp:(symbol std::__1::basic_stringstream, std::__1::allocator>::~basic_stringstream()+0x35) >>> referenced 1 more times ld64.lld: error: undefined symbol: VTT for std::__1::basic_stringstream, std::__1::allocator> >>> referenced by istream:201 (/usr/local/opt/llvm/bin/../include/c++/v1/istream:201) >>> /tmp/lto.tmp:(symbol toml::v3::impl::impl_ex::parser::parse_float()+0x2a7) >>> referenced by sstream:1102 (/usr/local/opt/llvm/bin/../include/c++/v1/sstream:1102) >>> /tmp/lto.tmp:(symbol std::__1::basic_stringstream, std::__1::allocator>::~basic_stringstream()+0x10) ld64.lld: error: undefined symbol: vtable for std::__1::basic_stringstream, std::__1::allocator> >>> referenced by sstream:1010 (/usr/local/opt/llvm/bin/../include/c++/v1/sstream:1010) >>> /tmp/lto.tmp:(symbol toml::v3::impl::impl_ex::parser::parse_float()+0x27c) ld64.lld: error: undefined symbol: VTT for std::__1::basic_ostringstream, std::__1::allocator> >>> referenced by parser.inl:0 (_deps/tomlplusplus-src/include/toml++/impl/parser.inl:0) >>> /tmp/lto.tmp:(symbol void toml::v3::impl::concatenate(char*&, char*, unsigned long long const&)+0x24d) >>> referenced by new:0 (/usr/local/opt/llvm/bin/../include/c++/v1/new:0) >>> /tmp/lto.tmp:(symbol void toml::v3::impl::concatenate(char*&, char*, unsigned long long const&)+0x1cd) >>> referenced by ostream:218 (/usr/local/opt/llvm/bin/../include/c++/v1/ostream:218) >>> /tmp/lto.tmp:(symbol void toml::v3::impl::concatenate(char*&, char*, unsigned long long const&)+0x44) >>> referenced 3 more times ld64.lld: error: undefined symbol: vtable for std::__1::basic_ostringstream, std::__1::allocator> >>> referenced by sstream:901 (/usr/local/opt/llvm/bin/../include/c++/v1/sstream:901) >>> /tmp/lto.tmp:(symbol void toml::v3::impl::concatenate(char*&, char*, unsigned long long const&)+0x2b) >>> referenced by sstream:901 (/usr/local/opt/llvm/bin/../include/c++/v1/sstream:901) >>> /tmp/lto.tmp:(symbol void toml::v3::impl::error_builder::append(int const&)+0x36) clang++: error: linker command failed with exit code 1 (use -v to see invocation) gmake[2]: *** [CMakeFiles/wsddn.dir/build.make:428: wsddn] Error 1 gmake[1]: *** [CMakeFiles/Makefile2:234: CMakeFiles/wsddn.dir/all] Error 2 gmake: *** [Makefile:136: all] Error 2 ```

So, while the linking errors have a different presentation, they are pretty much the same. Since I have very little experience with such complex toolsets, I can't do much more than post the above transcripts here. I would suspect that what is being flagged as "warnings" are actually more serious. It seems obvious that those char_traits<char> marked as deprecated are not behaving as expected, and this is true for all compilers. But beyond that very wild guess, I have no idea what can be done to fix this, or even if it's fixable at all. As said above, my last chance is to get a more recent SDK and try again, but I'm reluctant to do so, since, AFAICS, the errors are coming from fmt-src and whatever it calls (or whatever it is being called for) — not from the SDK itself. Although I really don't know — it's always possible that 'fixing' whatever makes the current linking step fail might just trigger another hidden link failure, which, however, is being masked by this one. Who knows? 🤷‍♀️

gershnik commented 4 months ago

Wow, sorry you had to spend so much time on this! Your OS should be supported - the minimum is currently set to 10.15 but obviously it doesn't work, I suspect due to one of the dependent libraries. Let's me see if I can figure it out. First to answer some question you had

Why compile libuuid from sources? Problem is there is wide variety of flavors of "libuuid" out there on various platforms. For example MacOS has a built-in BSD-style one which isn't at like the Linux one from util-linux. Then the latest version from util-linux doesn't even build on macOS (I submitted a patch, still sitting there). After lots of frustration with various issues caused by that on different platforms the only sane way is to build it from sources using a specific version to rely upon. Yeah you get warnings here and there from various compilers but these are benign and not the source of the issues you are seeing.
Errors appear to come from lto.c because in release builds the compilation uses link-time-optimization LTO which unfortunately, in clang implementation, internally combines everything into one huge file: lto.c. Fortunately the errors are pretty clear (for a given definition of "clear") about what is missing and what is calling them.

Now to the linker errors themselves. They are at the first blush truly bizarre because how can basic_ostringstream<char> be missing - it is an old and stable, non-deprecated, part of C++ standard library since like 1991. Which tells me that most likely there is some mismatch of system libraries or wrong standard library is being linked.

The easiest way to diagnose what is going on is to make CMake print out the exact compilation/linking command being executed. To do so on newer CMake you can pass --verbose flag. Something like

cmake --build out --verbose

You probably also want to build debug config to begin with rather than release to get rid of lto.c stuff. To do this pass the following during configure:

cmake -S source_dir -B out_dir -DCMAKE_BUILD_TYPE=Debug

With that hopefully the linker command line will shed some light on what libraries is it trying to pull in and from where.

As far as GCC goes - I don't think it will solve anything - the missing symbols are from system libraries and any compiler will have to get to them one way or another.

Let me know how it goes. I think nowadays there is a relatively easy way to run an older macOS in a virtual machine so I might just set it up to try to reproduce your setup but it will take some time.

Apologies again for all the hassle you had to go through.

gershnik commented 4 months ago

Also after some googling around it appears that similar errors happen when there is something broken in Apple command line tools / brew or both. See e.g. https://stackoverflow.com/questions/75749674/how-can-i-resolve-undefined-symbols-when-using-stdofstream-on-a-mac or https://stackoverflow.com/questions/71888715/why-does-apple-clang-not-support-stdifstream

Perhaps removing and reinstalling dev tools and "doctoring" brew might help here too?

gershnik commented 4 months ago

Oh and the really interesting question is why the pre-built installed version crashes. Generally you don't need a core file for that. There should be a descriptive crash report in Console.app: look under Crash Reports. Let me know if there is anything from wsddn there.

gershnik commented 4 months ago

Ok I think I got to the bottom of the main issue. I have managed to install Big Sur in a VM (somewhat of an adventure) and indeed trying the official installer produces exactly the same result as you observed - segmentation fault. After looking up where it happens in debug symbols for that build (which I have) - big surprise - it is somewhere where no crash should be logically possible (I'll spare you the details). What on earth? Ok, I build a debug version, run it on that machine... and it works perfectly. Maybe it's Debug vs. Release? I tried Release version... and it works too. Finally I made a full blown .pkg installer build with Apple notarization and all the bells and whistles... and it works great too. Then it dawned at me that the only difference between what I am doing and the "official" build is where it is being built. Mine is on my laptop with latest and greatest Xcode, the official was done on Github action runner with an older one. So what we have here is plainly an Xcode bug that got fixed in later version. Sigh. I need to think a bit what would be the best way to fix it this without resorting to manual builds but the fix is upcoming.

Now I am going to look at CMake build on Big Sur.

GwynethLlewelyn commented 4 months ago

Wow, thanks so much for your detective work!

For the sake of the argument, I don't have the full XCode installed — only the command-line utilities (I don't really like XCode). That might make a difference, since I presume that's also all that the GitHub action runner has access to.

But sure, I'm aware that there must be a lot of rubbish in my overall configuration 🤣 That's no surprise — there are some leftover bits and pieces on my system that may go as far back as 2001. Every now and then, I find a binary that has been compiled for the PowerPC architecture (these days, mostly dynamically-loaded plugins for apps I've uninstalled eons ago but which weren't cleaned up by the uninstall procedure). So, aye, there are several archaeologic layers of "mess" over there. Duplicate libraries with the same symbols are particularly nasty, and I seem to have lots of those, accumulated over the years. That's why nothing in your thorough explanations surprises me.

Running brew doctor on my system is, well, due to find tons of issues (and the list grows!). Most, however, are easy to explain. You see, whenever there is a formula upgrade, Homebrew insists in installing the sources and compile them locally. If the compilation fails for some reason, I try to get it fixed. Sometimes, there is a dependency or other which I cannot get to work within Homebrew's own environment — sonI have no other choice but to compile them separately from Homebrew. Eventually what happens is that a subsequent ./configure (on things using CMake, of course) will find all the dependencies correctly installed and proceeds towards a successful conclusion — one that includes, at the end, registering the formula as being "installed & active". But that comes at the cost of having "skipped" one or more official dependency installs. Homebrew doesn't care much (at the compilation level), but brew doctor will find all those cases where the configuration was "hacked" and is, to a degree, "broken".

But sure, every now and then, I tend to clean-up those things, with more or less success; sometimes, more recent versions of the same libraries/packags/formulae etc. will fix things again.

But the truth is that, In any case, I don't really insist in having a feasible, working CMake build on Big Sur :) — a working binary is more than enough, to be honest. After all, the only thing I'm trying to test is if the lack of WS support is what makes my Mac "invisible" to PCs running Windows 10.

Nevertheless, I'm going to follow some of your suggestions and see what I can do!

gershnik commented 4 months ago

Ok, first of all, if you try to install again via Homebrew it should bring version 1.14.1 that (fingers crossed) should work fine on Big Sur.

Re Xcode vs. command-line tools there is no difference when using them from CMake command line builds. Both include the same compiler, frameworks and tools in the same layout which is all CMake is using. I am actually not sure whether GitHub runner images have full Xcode or command-line tools only installed (they have multiple versions side-by-side too) but it shouldn't matter at all.

As far as building on Big Sur it works fine with one fix I just committed which is unrelated to the issue you have been seeing. Here is what definitely works now:

xcode-select --install to install default command line tools
Update Xcode tools to 13.2 via software update
Install regular macOS CMake from https://github.com/Kitware/CMake/releases/download/v3.29.6/cmake-3.29.6-macos-universal.dmg
sudo "/Applications/CMake.app/Contents/bin/cmake-gui" --install to make CMake available from command line
git clone https://github.com/gershnik/wsdd-native.git
cmake -S . -B out -DCMAKE_BUILD_TYPE=RelWithDebInfo
cmake --build out

So I can only assume that the linker issue you have encountered is caused by some mixup between Homebrew and Xcode command-line tools.

However, as you have said, assuming 1.14.1 fixes your issue this is of no importance.

Let me know whether it works for you.

Thank you again for reporting and your patience! It's a really nasty bug.

GwynethLlewelyn commented 4 months ago

Hi again! Whatever magic you did — 1.14.1 fixed it! I cannot say how relieved I am. And I did nothing more than simply run brew upgrade (after re-adding your repo, of course). The daemon is now running flawlessly on the background, for many hours, without a glitch. It "survived" two reboots (I was just tweaking and experimenting with different settings), so, from my perspective, I'll close this issue and mark it as fixed!

Thanks for all the trouble in fixing a stupid bug which will only affect ancient Macs :-P Who knows, perhaps your fix also somehow helps out other builds of wsddn to be more robust. Then all the time you spent was not utterly wasted!

Naturally enough, I was curious to see if I could follow your instructions and try to recompile everything from scratch — knowing now that the wsddn issue is fixed, and all errors must be on my side (no surprises there!!).

While doing so, I found lots of things I never knew about my Mac 🤣

First of all — I learned that Console.app is actually useful for something! I thought it was merely a fancy GUI just for viewing some standard logs which I view with tail -f /var/log/... anyway. Perhaps that might have been the case in the past (I don't know!), but I certainly didn't think of Console.app to be the equivalent to systemd's journal — just, well, Apple-ified, like they are so often fond to do. There is a massive amount of most interesting information there which I had no idea about. So... thanks so much for the lesson!

Secondly — sadly, while running macOS 11.7.9, I'm not "allowed" to install XCode 13.X — the highest I'm "allowed" is 12.X (which doesn't get any updates, of course). Worse than that, I cannot even _re_install those tools (at least not via xcode-select or softwareupdate...).

Thirdly — I'm persuaded that you're absolutely right in your assessment: the compilation errors I've got are due to the many conflicts between the Apple Clang, the Homebrew Clang, the Homebrew GCC, and the XCode 12.X tools. They perversely conspire against each other to break everything 😁 No wonder, therefore, that I fail to compile things via Homebrew. Possibly, the Homebrew team seriously suspects that most 10-year-old Macs out there are hopelessly messed up in terms of overall compilation environment, and so — wisely — refuse to give any kind of support to ancient platforms (not even at the most basic level, i.e. submitting issues...).

In any case, as said, the issue is now fixed for me — I'll post further details as soon as I get the latest version of Hombrew's Clang to compile itself. I suspect it will take the whole night (at least)...

gershnik commented 4 months ago

Really glad that this issue is solved and you are unblocked!

I could go on a long rant about how bad Console.app is (and how much worse it's gotten nowadays) but it has its uses like getting crash info and logs and crashes from connected iDevices (if you have an iDevice open the Console with the device connected to your Mac). Beyond that, it's pretty bad. The real equivalent to systemd journalctl is the log command line tool. What I find ironic is that systemd started as launchd knock-off but now it far surpasses the original in usability and features.

Strange that you cannot install command-line tools 13. When I installed the default ones (via xcode-select --install) on my VM the Software Update in Settings immediately offered me to update to 13. My understanding and also according to https://en.wikipedia.org/wiki/Xcode (expand "Xcode 11.0 - 14.x" table) version 13 is supported on Big Sur.

One other thing to I'd try if you are still interested is to configure wsddn with

cmake -S . -B out -DCMAKE_BUILD_TYPE=RelWithDebInfo -DWSDDN_PREFER_SYSTEM=OFF

this will prevent it from using whatever libxml homebrew contains and it will instead compile it from sources (same as what happens with libuuid). I have a nasty suspicion that it is the external libxml that introduces the mismatch of system libraries but this is just a guess.

gershnik commented 4 months ago

Oh and BTW have you considered MacPorts? I am not a big fan of Homebrew because of its insistence to muck with the system security (see e.g. https://applehelpwriter.com/2018/03/21/how-homebrew-invites-users-to-get-pwned/) out of ridiculous desire to avoid sudo. MacPorts has less stuff (it is much harder for developers to support) and its equivalent of taps is much harder to set up. On the other hands it seems to be more robust and I believe better support for older systems (but perhaps I am wrong)

gershnik / wsdd-native

[SOLVED] My (failed) attempts to install wsdd-native on a 10-year old Mac with macOS Big Sur #13

The End...?

Update! Another potential solution! [no, it doesn't work, either]