THRIFT-874. Disable AX_SIGNED_RIGHT_SHIFT for cross-compiles

When cross-compiling, we cannot run test programs, so
AX_SIGNED_RIGHT_SHIFT won't work.  That macro is only needed for the
runtime library, not the compiler, so we can just skip it if we are
cross-compiling the compiler.

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@991256 13f79535-47bb-0310-9956-ffa450edef68
1 file changed