Determining if the __i386 exist failed with the following output:
Change Dir: /Users/learath2/Desktop/C/ddnet/build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/local/bin/ninja cmTC_b58f4 && [1/2] Building C object CMakeFiles/cmTC_b58f4.dir/CheckSymbolExists.c.o
FAILED: CMakeFiles/cmTC_b58f4.dir/CheckSymbolExists.c.o 
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc   -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -o CMakeFiles/cmTC_b58f4.dir/CheckSymbolExists.c.o   -c CheckSymbolExists.c
CheckSymbolExists.c:7:19: error: use of undeclared identifier '__i386'
  return ((int*)(&__i386))[argc];
                  ^
1 error generated.
ninja: build stopped: subcommand failed.


File /Users/learath2/Desktop/C/ddnet/build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */

int main(int argc, char** argv)
{
  (void)argv;
#ifndef __i386
  return ((int*)(&__i386))[argc];
#else
  (void)argc;
  return 0;
#endif
}
Performing C SOURCE FILE Test FLAG_SUPPORTED_Wduplicated_cond failed with the following output:
Change Dir: /Users/learath2/Desktop/C/ddnet/build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/local/bin/ninja cmTC_1630a && [1/2] Building C object CMakeFiles/cmTC_1630a.dir/src.c.o
warning: unknown warning option '-Wduplicated-cond'; did you mean '-Wduplicate-enum'? [-Wunknown-warning-option]
1 warning generated.
[2/2] Linking C executable cmTC_1630a


Source file was:
int main(void) { return 0; }
Performing C SOURCE FILE Test FLAG_SUPPORTED_Wduplicated_branches failed with the following output:
Change Dir: /Users/learath2/Desktop/C/ddnet/build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/local/bin/ninja cmTC_90e14 && [1/2] Building C object CMakeFiles/cmTC_90e14.dir/src.c.o
warning: unknown warning option '-Wduplicated-branches' [-Wunknown-warning-option]
1 warning generated.
[2/2] Linking C executable cmTC_90e14


Source file was:
int main(void) { return 0; }
Performing C SOURCE FILE Test FLAG_SUPPORTED_Wlogical_op failed with the following output:
Change Dir: /Users/learath2/Desktop/C/ddnet/build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/local/bin/ninja cmTC_b586f && [1/2] Building C object CMakeFiles/cmTC_b586f.dir/src.c.o
warning: unknown warning option '-Wlogical-op'; did you mean '-Wlong-long'? [-Wunknown-warning-option]
1 warning generated.
[2/2] Linking C executable cmTC_b586f


Source file was:
int main(void) { return 0; }
Performing C SOURCE FILE Test FLAG_SUPPORTED_Wrestrict failed with the following output:
Change Dir: /Users/learath2/Desktop/C/ddnet/build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/local/bin/ninja cmTC_f9cee && [1/2] Building C object CMakeFiles/cmTC_f9cee.dir/src.c.o
warning: unknown warning option '-Wrestrict' [-Wunknown-warning-option]
1 warning generated.
[2/2] Linking C executable cmTC_f9cee


Source file was:
int main(void) { return 0; }
Determining if the WavpackOpenFileInputEx exist failed with the following output:
Change Dir: /Users/learath2/Desktop/C/ddnet/build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/local/bin/ninja cmTC_90fa5 && [1/2] Building C object CMakeFiles/cmTC_90fa5.dir/CheckSymbolExists.c.o
FAILED: CMakeFiles/cmTC_90fa5.dir/CheckSymbolExists.c.o 
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc  -Isrc/engine/external/wavpack -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -o CMakeFiles/cmTC_90fa5.dir/CheckSymbolExists.c.o   -c CheckSymbolExists.c
CheckSymbolExists.c:2:10: fatal error: 'wavpack.h' file not found
#include <wavpack.h>
         ^~~~~~~~~~~
1 error generated.
ninja: build stopped: subcommand failed.


File /Users/learath2/Desktop/C/ddnet/build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <wavpack.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef WavpackOpenFileInputEx
  return ((int*)(&WavpackOpenFileInputEx))[argc];
#else
  (void)argc;
  return 0;
#endif
}