On Thu, Jan 29, 2015 at 10:28:17AM -0800, H.J. Lu wrote: > >> --- acinclude.m4 (revision 220257) > >> +++ acinclude.m4 (working copy) > >> @@ -2320,8 +2320,6 @@ > >> AC_MSG_CHECKING([for vtable verify support]) > >> AC_MSG_RESULT([$enable_vtable_verify]) > >> > >> - AM_CONDITIONAL(VTV_CYGMIN, test $vtv_cygmin = yes) > >> - > >> if test $enable_vtable_verify = yes; then > >> case ${target_os} in > >> cygwin*|mingw32*) > >> @@ -2341,6 +2339,8 @@ > >> VTV_CXXLINKFLAGS= > >> fi > >> > >> + AM_CONDITIONAL(VTV_CYGMIN, test $vtv_cygmin = yes) > >> + > > > > Or we can just do > > AM_CONDITIONAL(VTV_CYGMIN, test x$vtv_cygmin = xyes)
Or that, but that is not what you've checked in. Some shells will be upset about test $vtv_cygmin = yes when $vtv_cygmin expands to empty string. Jakub