Determining if the _aligned_malloc exist failed with the following output:
Change Dir: /home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_acd6a/fast"
make[1]: Entering directory `/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp'
/usr/bin/make -f CMakeFiles/cmTC_acd6a.dir/build.make CMakeFiles/cmTC_acd6a.dir/build
make[2]: Entering directory `/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_acd6a.dir/CheckSymbolExists.c.o
/home/test/autobuild/run/instance-1/output/host/bin/arm-linux-gcc --sysroot=/home/test/autobuild/run/instance-1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -static   -DNDEBUG   -o CMakeFiles/cmTC_acd6a.dir/CheckSymbolExists.c.o   -c /home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp/CheckSymbolExists.c
/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp/CheckSymbolExists.c: In function 'main':
/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: error: '_aligned_malloc' undeclared (first use in this function)
   return ((int*)(&_aligned_malloc))[argc];
                   ^~~~~~~~~~~~~~~
/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [CMakeFiles/cmTC_acd6a.dir/CheckSymbolExists.c.o] Error 1
make[2]: Leaving directory `/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp'
make[1]: *** [cmTC_acd6a/fast] Error 2
make[1]: Leaving directory `/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp'

File /home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <malloc.h>

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

Determining if the include file pthread.h exists failed with the following output:
Change Dir: /home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_6961d/fast"
make[1]: Entering directory `/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp'
/usr/bin/make -f CMakeFiles/cmTC_6961d.dir/build.make CMakeFiles/cmTC_6961d.dir/build
make[2]: Entering directory `/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_6961d.dir/CheckIncludeFile.c.o
/home/test/autobuild/run/instance-1/output/host/bin/arm-linux-gcc --sysroot=/home/test/autobuild/run/instance-1/output/host/arm-buildroot-linux-uclibcgnueabihf/sysroot   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -static   -DNDEBUG   -o CMakeFiles/cmTC_6961d.dir/CheckIncludeFile.c.o   -c /home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp/CheckIncludeFile.c
/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:21: fatal error: pthread.h: No such file or directory
 #include <pthread.h>
                     ^
compilation terminated.
make[2]: *** [CMakeFiles/cmTC_6961d.dir/CheckIncludeFile.c.o] Error 1
make[2]: Leaving directory `/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp'
make[1]: *** [cmTC_6961d/fast] Error 2
make[1]: Leaving directory `/home/test/autobuild/run/instance-1/output/build/openjpeg-2.3.0/CMakeFiles/CMakeTmp'