Performing C SOURCE FILE Test CMAKE_HAVE_LIBC_PTHREAD failed with the following output:
Change Dir: /tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/gmake -f Makefile cmTC_a6337/fast && gmake[1]: Entering directory '/tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp'
/usr/bin/gmake  -f CMakeFiles/cmTC_a6337.dir/build.make CMakeFiles/cmTC_a6337.dir/build
gmake[2]: Entering directory '/tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_a6337.dir/src.c.o
/tmp/instance-20/output-1/host/bin/mips-mti-linux-gnu-gcc --sysroot=/tmp/instance-20/output-1/host/mips64el-buildroot-linux-gnu/sysroot -DCMAKE_HAVE_LIBC_PTHREAD -D_GNU_SOURCE -D_LARGEFILE64_SOURCE  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Og -g0 -D_FORTIFY_SOURCE=2 -fno-common -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wmissing-format-attribute -Wwrite-strings -Werror=implicit-function-declaration   -DNDEBUG -std=c99 -o CMakeFiles/cmTC_a6337.dir/src.c.o -c /tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp/src.c
Linking C executable cmTC_a6337
/tmp/instance-20/output-1/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_a6337.dir/link.txt --verbose=1
/tmp/instance-20/output-1/host/bin/mips-mti-linux-gnu-gcc --sysroot=/tmp/instance-20/output-1/host/mips64el-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Og -g0 -D_FORTIFY_SOURCE=2 -fno-common -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wmissing-format-attribute -Wwrite-strings -Werror=implicit-function-declaration   -DNDEBUG -Wl,--enable-new-dtags   CMakeFiles/cmTC_a6337.dir/src.c.o -o cmTC_a6337 
CMakeFiles/cmTC_a6337.dir/src.c.o: In function `main':
src.c:(.text+0x30): undefined reference to `pthread_create'
src.c:(.text+0x34): undefined reference to `pthread_create'
src.c:(.text+0x3c): undefined reference to `pthread_detach'
src.c:(.text+0x40): undefined reference to `pthread_detach'
src.c:(.text+0x48): undefined reference to `pthread_cancel'
src.c:(.text+0x4c): undefined reference to `pthread_cancel'
src.c:(.text+0x58): undefined reference to `pthread_join'
src.c:(.text+0x5c): undefined reference to `pthread_join'
src.c:(.text+0x6c): undefined reference to `pthread_atfork'
src.c:(.text+0x70): undefined reference to `pthread_atfork'
collect2: error: ld returned 1 exit status
gmake[2]: *** [CMakeFiles/cmTC_a6337.dir/build.make:99: cmTC_a6337] Error 1
gmake[2]: Leaving directory '/tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp'
gmake[1]: *** [Makefile:127: cmTC_a6337/fast] Error 2
gmake[1]: Leaving directory '/tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp'


Source file was:
#include <pthread.h>

static void* test_func(void* data)
{
  return data;
}

int main(void)
{
  pthread_t thread;
  pthread_create(&thread, NULL, test_func, NULL);
  pthread_detach(thread);
  pthread_cancel(thread);
  pthread_join(thread, NULL);
  pthread_atfork(NULL, NULL, NULL);
  pthread_exit(NULL);

  return 0;
}

Determining if the function pthread_create exists in the pthreads failed with the following output:
Change Dir: /tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/gmake -f Makefile cmTC_0e162/fast && gmake[1]: Entering directory '/tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp'
/usr/bin/gmake  -f CMakeFiles/cmTC_0e162.dir/build.make CMakeFiles/cmTC_0e162.dir/build
gmake[2]: Entering directory '/tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_0e162.dir/CheckFunctionExists.c.o
/tmp/instance-20/output-1/host/bin/mips-mti-linux-gnu-gcc --sysroot=/tmp/instance-20/output-1/host/mips64el-buildroot-linux-gnu/sysroot -D_GNU_SOURCE -D_LARGEFILE64_SOURCE  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Og -g0 -D_FORTIFY_SOURCE=2 -fno-common -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wmissing-format-attribute -Wwrite-strings -Werror=implicit-function-declaration -DCHECK_FUNCTION_EXISTS=pthread_create  -DNDEBUG -std=c99 -o CMakeFiles/cmTC_0e162.dir/CheckFunctionExists.c.o -c /tmp/instance-20/output-1/host/share/cmake-3.22/Modules/CheckFunctionExists.c
Linking C executable cmTC_0e162
/tmp/instance-20/output-1/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_0e162.dir/link.txt --verbose=1
/tmp/instance-20/output-1/host/bin/mips-mti-linux-gnu-gcc --sysroot=/tmp/instance-20/output-1/host/mips64el-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Og -g0 -D_FORTIFY_SOURCE=2 -fno-common -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wmissing-format-attribute -Wwrite-strings -Werror=implicit-function-declaration -DCHECK_FUNCTION_EXISTS=pthread_create  -DNDEBUG -Wl,--enable-new-dtags   CMakeFiles/cmTC_0e162.dir/CheckFunctionExists.c.o -o cmTC_0e162  -lpthreads 
/tmp/instance-20/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips-mti-linux-gnu/6.3.0/../../../../mips-mti-linux-gnu/bin/ld: cannot find -lpthreads
collect2: error: ld returned 1 exit status
gmake[2]: *** [CMakeFiles/cmTC_0e162.dir/build.make:99: cmTC_0e162] Error 1
gmake[2]: Leaving directory '/tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp'
gmake[1]: *** [Makefile:127: cmTC_0e162/fast] Error 2
gmake[1]: Leaving directory '/tmp/instance-20/output-1/build/kf5-kcoreaddons-5.91.0/CMakeFiles/CMakeTmp'