checking MACHDEP... aix4
checking for --without-gcc... 
checking for --with-cxx=<compiler>... no
checking for c++... c++
checking for C++ compiler default output... a.out
checking whether the C++ compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for gcc... cc_r
checking for C compiler default output... configure: error: C compiler cannot create executables