error: C++ preprocessor "/lib/cpp" fails sanity check

[mengzhisuoliu]

Hi,I compile fdk-acc with msys2(mingw64) on the Windows 10 .
It shows errors when runs ./configure --prefix=/usr --disable-static.
The main error as bellow:
checking how to run the C++ preprocessor... /lib/cpp
configure: error: in '/home/Administrator/fdk-aac':
configure: error: C++ preprocessor "/lib/cpp" fails sanity check
See 'config.log' for more details

config.log

which gcc

/mingw64/bin/gcc

which g++

/mingw64/bin/g++

It confuse me some days,thanks for a billion .