https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107886
--- Comment #11 from Jamaika <lukaszcz18 at wp dot pl> ---
without #define __cpp_lib_atomic_wait 201907L
```
Using built-in specs.
COLLECT_GCC=g++.exe
Target: x86_64-w64-mingw32
Configured with: /home/ma/m/source/gcc-g/configure --host=x86_64-w64-mingw32
--target=x86_64-w64-mingw32 --disable-nls --enable-languages=c,c++,objc,obj-c++
--with-gmp=/home/ma/m/build/for_target --with-mpfr=/home/ma/m/build/for_target
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--enable-twoprocess --disable-libstdcxx-pch --disable-win32-registry
--disable-shared --enable-fully-dynamic-string --enable-libssp
--prefix=/home/ma/m/target --with-sysroot=/home/ma/m/target
Thread model: win32
Supported LTO compression algorithms: zlib
gcc version 13.0.0 20221124 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-v' '-std=gnu++20' '-ftree-vectorize' '-D' 'WINVER=0x0602'
'-D' '_WIN32_WINNT=0x0602' '-g0' '-O3' '-c' '-o' 'latch_windows.o'
'-mtune=generic' '-march=x86-64'
c:/gcc1300/bin/../libexec/gcc/x86_64-w64-mingw32/13.0.0/cc1plus.exe -quiet -v
-iprefix c:\gcc1300\bin\../lib/gcc/x86_64-w64-mingw32/13.0.0/ -U_REENTRANT -D
WINVER=0x0602 -D _WIN32_WINNT=0x0602 latch_windows.cpp -quiet -dumpbase
latch_windows.cpp -dumpbase-ext .cpp -mtune=generic -march=x86-64 -g0 -O3
-std=gnu++20 -version -ftree-vectorize -o
C:\Users\KOMPUT~1\AppData\Local\Temp\ccVi63tF.s
GNU C++20 (GCC) version 13.0.0 20221124 (experimental) (x86_64-w64-mingw32)
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GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring duplicate directory
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ignoring duplicate directory
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ignoring duplicate directory
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ignoring duplicate directory
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ignoring nonexistent directory
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ignoring duplicate directory
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ignoring duplicate directory
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ignoring nonexistent directory "/home/ma/m/target/mingw/include"
#include "..." search starts here:
#include <...> search starts here:
c:\gcc1300\bin\../lib/gcc/x86_64-w64-mingw32/13.0.0/../../../../include/c++/13.0.0
c:\gcc1300\bin\../lib/gcc/x86_64-w64-mingw32/13.0.0/../../../../include/c++/13.0.0/x86_64-w64-mingw32
c:\gcc1300\bin\../lib/gcc/x86_64-w64-mingw32/13.0.0/../../../../include/c++/13.0.0/backward
c:\gcc1300\bin\../lib/gcc/x86_64-w64-mingw32/13.0.0/include
c:\gcc1300\bin\../lib/gcc/x86_64-w64-mingw32/13.0.0/include-fixed
c:\gcc1300\bin\../lib/gcc/x86_64-w64-mingw32/13.0.0/../../../../x86_64-w64-mingw32/include
End of search list.
GNU C++20 (GCC) version 13.0.0 20221124 (experimental) (x86_64-w64-mingw32)
compiled by GNU C version 13.0.0 20221124 (experimental), GMP version
6.2.1, MPFR version 4.1.1, MPC version 1.2.1, isl version isl-0.24-GMP
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 2b6c2fb9839dec486c0793745b5cdfdc
latch_windows.cpp:9:6: error: 'latch' in namespace 'std' does not name a type
9 | std::latch workDone(6);
| ^~~~~
latch_windows.cpp: In member function 'void Worker::operator()()':
latch_windows.cpp:23:9: error: 'workDone' was not declared in this scope
23 | workDone.arrive_and_wait(); // wait until all work is done
(1)
| ^~~~~~~~
```
