current directory: /build/wpscan/src/wpscan-2.9.2/vendor/bundle/ruby/2.4.0/gems/ffi-1.9.17/ext/ffi_c
/usr/bin/ruby -r ./siteconf20170124-328-1qhkrz8.rb extconf.rb 
checking for ffi_call() in -lffi... yes
checking for ffi_prep_closure()... yes
checking for ffi_raw_call()... yes
checking for ffi_prep_raw_closure()... yes
checking for rb_thread_blocking_region()... no
checking for rb_thread_call_with_gvl()... yes
checking for rb_thread_call_without_gvl()... yes
checking for ffi_prep_cif_var()... yes
creating extconf.h
creating Makefile

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /build/wpscan/src/wpscan-2.9.2/vendor/bundle/ruby/2.4.0/extensions/aarch64-linux/2.4.0/ffi-1.9.17/mkmf.log

current directory: /build/wpscan/src/wpscan-2.9.2/vendor/bundle/ruby/2.4.0/gems/ffi-1.9.17/ext/ffi_c
make "DESTDIR=" clean

current directory: /build/wpscan/src/wpscan-2.9.2/vendor/bundle/ruby/2.4.0/gems/ffi-1.9.17/ext/ffi_c
make "DESTDIR="
compiling AbstractMemory.c
compiling ArrayType.c
compiling Buffer.c
compiling Call.c
compiling ClosurePool.c
compiling DataConverter.c
compiling DynamicLibrary.c
compiling Function.c
compiling FunctionInfo.c
compiling LastError.c
compiling LongDouble.c
compiling MappedType.c
compiling MemoryPointer.c
compiling MethodHandle.c
compiling Platform.c
compiling Pointer.c
compiling Struct.c
compiling StructByReference.c
compiling StructByValue.c
compiling StructLayout.c
compiling Thread.c
Call.c: In function 'rbffi_do_blocking_call':
Call.c:355:5: warning: implicit declaration of function 'rb_thread_call_without_gvl' [-Wimplicit-function-declaration]
compiling Type.c
compiling Types.c
compiling Variadic.c
compiling ffi.c
Function.c: In function 'async_cb_event':
Function.c:563:9: warning: implicit declaration of function 'rb_thread_call_without_gvl' [-Wimplicit-function-declaration]
linking shared-object ffi_c.so

current directory: /build/wpscan/src/wpscan-2.9.2/vendor/bundle/ruby/2.4.0/gems/ffi-1.9.17/ext/ffi_c
make "DESTDIR=" install
/usr/bin/install -c -m 0755 ffi_c.so ./.gem.20170124-328-1tiveuw
