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When building the current master, I need to specify an additional flag, -std=c++20. So this makes the build succeed; luarocks make CFLAGS="-std=c++20 -O2 -fPIC".
However there are a bunch of warnings in src/intercopycontext.cpp, see details below.
Thijss-MacBook-Pro:lanes thijs$ luarocks make CFLAGS="-std=c++20 -O2 -fPIC"
lanes 4.0.0-0 depends on lua >= 5.1 (5.4-1 provided by VM: success)
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/_pch.cpp -o src/_pch.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/allocator.cpp -o src/allocator.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/cancel.cpp -o src/cancel.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/compat.cpp -o src/compat.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/deep.cpp -o src/deep.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/intercopycontext.cpp -o src/intercopycontext.o -Isrc
src/intercopycontext.cpp:479:13: warning: 'sprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead. [-Wdeprecated-declarations]
479 | sprintf(_valPath, "%s." STRINGVIEW_FMT, name.data(), (int) _key.size(), _key.data());
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:278:1: note: 'sprintf' has been explicitly marked deprecated here
278 | __deprecated_msg("This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead.")
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:218:48: note: expanded from macro '__deprecated_msg'
218 | #define __deprecated_msg(_msg) __attribute__((__deprecated__(_msg)))
| ^
src/intercopycontext.cpp:485:13: warning: 'sprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead. [-Wdeprecated-declarations]
485 | sprintf(_valPath, "%s[" LUA_INTEGER_FMT "]", name.data(), key);
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:278:1: note: 'sprintf' has been explicitly marked deprecated here
278 | __deprecated_msg("This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead.")
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:218:48: note: expanded from macro '__deprecated_msg'
218 | #define __deprecated_msg(_msg) __attribute__((__deprecated__(_msg)))
| ^
src/intercopycontext.cpp:491:13: warning: 'sprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead. [-Wdeprecated-declarations]
491 | sprintf(_valPath, "%s[" LUA_NUMBER_FMT "]", name.data(), key);
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:278:1: note: 'sprintf' has been explicitly marked deprecated here
278 | __deprecated_msg("This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead.")
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:218:48: note: expanded from macro '__deprecated_msg'
218 | #define __deprecated_msg(_msg) __attribute__((__deprecated__(_msg)))
| ^
src/intercopycontext.cpp:495:13: warning: 'sprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead. [-Wdeprecated-declarations]
495 | sprintf(_valPath, "%s[U:%p]", name.data(), _key);
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:278:1: note: 'sprintf' has been explicitly marked deprecated here
278 | __deprecated_msg("This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead.")
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:218:48: note: expanded from macro '__deprecated_msg'
218 | #define __deprecated_msg(_msg) __attribute__((__deprecated__(_msg)))
| ^
src/intercopycontext.cpp:499:13: warning: 'sprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead. [-Wdeprecated-declarations]
499 | sprintf(_valPath, "%s[%s]", name.data(), _key ? "true" : "false");
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:278:1: note: 'sprintf' has been explicitly marked deprecated here
278 | __deprecated_msg("This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead.")
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:218:48: note: expanded from macro '__deprecated_msg'
218 | #define __deprecated_msg(_msg) __attribute__((__deprecated__(_msg)))
| ^
src/intercopycontext.cpp:1433:13: warning: 'sprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead. [-Wdeprecated-declarations]
1433 | sprintf(_tmpBuf, "arg_%d", _j.value());
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:278:1: note: 'sprintf' has been explicitly marked deprecated here
278 | __deprecated_msg("This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use snprintf(3) instead.")
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:218:48: note: expanded from macro '__deprecated_msg'
218 | #define __deprecated_msg(_msg) __attribute__((__deprecated__(_msg)))
| ^
6 warnings generated.
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/keeper.cpp -o src/keeper.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/lane.cpp -o src/lane.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/lanes.cpp -o src/lanes.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/linda.cpp -o src/linda.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/lindafactory.cpp -o src/lindafactory.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/nameof.cpp -o src/nameof.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/state.cpp -o src/state.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/threading.cpp -o src/threading.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/tools.cpp -o src/tools.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/tracker.cpp -o src/tracker.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -std=c++20 -O2 -fPIC -I/usr/local/opt/lua/include/lua5.4 -c src/universe.cpp -o src/universe.o -Isrc
env MACOSX_DEPLOYMENT_TARGET=11.0 gcc -bundle -undefined dynamic_lookup -all_load -o /var/folders/ct/ml3h388s1f91mhsg4d1xxrgc0000gn/T/luarocks_build-Lanes-4.0.0-0-7838692/lanes_core.so src/_pch.o src/allocator.o src/cancel.o src/compat.o src/deep.o src/intercopycontext.o src/keeper.o src/lane.o src/lanes.o src/linda.o src/lindafactory.o src/nameof.o src/state.o src/threading.o src/tools.o src/tracker.o src/universe.o
lanes 4.0.0-0 is now installed in /Users/thijs/.luarocks (license: MIT/X11)
Missing dependencies for copas 4.8.0-1:
luasocket >= 2.1, <= 3.0rc1-2 (not installed)
Thijss-MacBook-Pro:lanes thijs$
Running Lua code that uses the resulting binary gets me a crash:
libc++abi: Terminating due to typed operator new being invoked before its static initializer in libcxx has
been executed. This is likely happening in code with -ftyped-cxx-new-delete enabled and statically linking
against libc++abi. If that is the case, and you cannot avoid invoking operator new in a static initializer,
please try disabling TMO for that code with -fno-typed-cxx-new-delete. Otherwise, please file a bug report
against libc++.
Abort trap: 6
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