Performing C SOURCE FILE Test BROTLI_EMSCRIPTEN failed with the following output:
Change Dir: /home/buildroot/autobuild/instance-3/output-1/build/brotli-1.0.9/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/gmake -f Makefile cmTC_9147d/fast && gmake[1]: Entering directory '/home/buildroot/autobuild/instance-3/output-1/build/brotli-1.0.9/CMakeFiles/CMakeTmp'
/usr/bin/gmake  -f CMakeFiles/cmTC_9147d.dir/build.make CMakeFiles/cmTC_9147d.dir/build
gmake[2]: Entering directory '/home/buildroot/autobuild/instance-3/output-1/build/brotli-1.0.9/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_9147d.dir/src.c.o
/home/buildroot/autobuild/instance-3/output-1/host/bin/arceb-buildroot-linux-uclibc-gcc --sysroot=/home/buildroot/autobuild/instance-3/output-1/host/arceb-buildroot-linux-uclibc/sysroot -DBROTLI_EMSCRIPTEN  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -O2 -g3   -DNDEBUG -o CMakeFiles/cmTC_9147d.dir/src.c.o -c /home/buildroot/autobuild/instance-3/output-1/build/brotli-1.0.9/CMakeFiles/CMakeTmp/src.c
Linking C executable cmTC_9147d
/home/buildroot/autobuild/instance-3/output-1/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_9147d.dir/link.txt --verbose=1
/home/buildroot/autobuild/instance-3/output-1/host/bin/arceb-buildroot-linux-uclibc-gcc --sysroot=/home/buildroot/autobuild/instance-3/output-1/host/arceb-buildroot-linux-uclibc/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -O2 -g3   -DNDEBUG CMakeFiles/cmTC_9147d.dir/src.c.o -o cmTC_9147d 
/home/buildroot/autobuild/instance-3/output-1/host/lib/gcc/arceb-buildroot-linux-uclibc/10.2.0/../../../../arceb-buildroot-linux-uclibc/bin/ld: /home/buildroot/autobuild/instance-3/output-1/host/arceb-buildroot-linux-uclibc/sysroot/usr/lib/crt1.o: in function `__start':
/home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.43/libc/sysdeps/linux/arc/crt1.S:51: undefined reference to `main'
/home/buildroot/autobuild/instance-3/output-1/host/lib/gcc/arceb-buildroot-linux-uclibc/10.2.0/../../../../arceb-buildroot-linux-uclibc/bin/ld: /home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.43/libc/sysdeps/linux/arc/crt1.S:51: undefined reference to `main'
collect2: error: ld returned 1 exit status
gmake[2]: *** [CMakeFiles/cmTC_9147d.dir/build.make:99: cmTC_9147d] Error 1
gmake[2]: Leaving directory '/home/buildroot/autobuild/instance-3/output-1/build/brotli-1.0.9/CMakeFiles/CMakeTmp'
gmake[1]: *** [Makefile:127: cmTC_9147d/fast] Error 2
gmake[1]: Leaving directory '/home/buildroot/autobuild/instance-3/output-1/build/brotli-1.0.9/CMakeFiles/CMakeTmp'


Source file was:
#if defined(__EMSCRIPTEN__)
   int main() {return 0;}
   #endif