fail to execute the compiled Cygwin applications, it will still exit with status zero. This tends to confuse build systems and test suites (including libtool's own testsuite, resulting in spurious reported failures). Wine support for the older Cygwin-1.5 series appears satisfactory, but the Cygwin team no longer supports Cygwin-1.5. It is hoped that Wine will eventually be improved such that Cygwin-1.7 will again operate correctly under Wine. Until then, libtool will report warnings as described in *note File Name Conversion Failure:: in these scenarios. However, 'LT_CYGPATH' is also used for the MSYS to Cygwin cross compile scenario, and operates as expected.