Performing C SOURCE FILE Test HAVE_C_TLS failed with the following output:
Change Dir: /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_75d67/fast"
make[1]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp'
/usr/bin/make -f CMakeFiles/cmTC_75d67.dir/build.make CMakeFiles/cmTC_75d67.dir/build
make[2]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_75d67.dir/src.c.o
/home/buildroot/autobuild/run/instance-1/output-1/host/bin/m68k-linux-gcc --sysroot=/home/buildroot/autobuild/run/instance-1/output-1/host/m68k-buildroot-linux-uclibc/sysroot   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -std=gnu99 -Wall -Wextra -D__FILENAME__='"CMakeFiles/CMakeTmp/src.c"' -DHAVE_C_TLS  -DNDEBUG   -o CMakeFiles/cmTC_75d67.dir/src.c.o   -c /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp/src.c
/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp/src.c: In function 'main':
/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp/src.c:4:8: warning: implicit declaration of function '__tls_get_addr'; did you mean '__emutls_get_address'? [-Wimplicit-function-declaration]
        __tls_get_addr(0);
        ^~~~~~~~~~~~~~
        __emutls_get_address
Linking C executable cmTC_75d67
/home/buildroot/autobuild/run/instance-1/output-1/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_75d67.dir/link.txt --verbose=1
/home/buildroot/autobuild/run/instance-1/output-1/host/bin/m68k-linux-gcc --sysroot=/home/buildroot/autobuild/run/instance-1/output-1/host/m68k-buildroot-linux-uclibc/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -std=gnu99 -Wall -Wextra -D__FILENAME__='"$(subst /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/,,$(abspath $<))"' -DHAVE_C_TLS  -DNDEBUG    -rdynamic CMakeFiles/cmTC_75d67.dir/src.c.o  -o cmTC_75d67 
/home/buildroot/autobuild/run/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/m68k-buildroot-linux-uclibc/7.4.0/../../../../m68k-buildroot-linux-uclibc/bin/ld: CMakeFiles/cmTC_75d67.dir/src.c.o: in function `main':
src.c:(.text.startup+0x8): undefined reference to `__tls_get_addr'
collect2: error: ld returned 1 exit status
make[2]: *** [cmTC_75d67] Error 1
make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp'
make[1]: *** [cmTC_75d67/fast] Error 2
make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp'

Source file was:

   __thread int a;
   int main() {
       __tls_get_addr(0);
       return 0;
   }
Determining if the backtrace exist failed with the following output:
Change Dir: /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_fa260/fast"
make[1]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp'
/usr/bin/make -f CMakeFiles/cmTC_fa260.dir/build.make CMakeFiles/cmTC_fa260.dir/build
make[2]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_fa260.dir/CheckSymbolExists.c.o
/home/buildroot/autobuild/run/instance-1/output-1/host/bin/m68k-linux-gcc --sysroot=/home/buildroot/autobuild/run/instance-1/output-1/host/m68k-buildroot-linux-uclibc/sysroot   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -std=gnu99 -Wall -Wextra -D__FILENAME__='"CMakeFiles/CMakeTmp/CheckSymbolExists.c"' -fPIC   -DNDEBUG   -o CMakeFiles/cmTC_fa260.dir/CheckSymbolExists.c.o   -c /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp/CheckSymbolExists.c
/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp/CheckSymbolExists.c:2:10: fatal error: execinfo.h: No such file or directory
 #include <execinfo.h>
          ^~~~~~~~~~~~
compilation terminated.
make[2]: *** [CMakeFiles/cmTC_fa260.dir/CheckSymbolExists.c.o] Error 1
make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp'
make[1]: *** [cmTC_fa260/fast] Error 2
make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp'

File /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <execinfo.h>

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