[: /flex/flex: unknown operand
[: /flex/flex: unknown operand
[: /bison/tests/bison: unknown operand
[: /bison/tests/bison: unknown operand
[: /byacc/byacc: unknown operand
[: /m4/m4: unknown operand
[: /texinfo/makeinfo/Makefile: unknown operand
Configuring in binutils
creating cache ./config.cache
checking for Cygwin environment... yes
checking for mingw32 environment... no
configure: error: can only configure for one host and one target at a time
make: *** [configure-binutils] Error 1
Any idea of what might be wrong?