AC_ARG_WITH(rsb, AS_HELP_STRING([--with-rsb], [Specify Recursive Sparse BLAS library linkage info (that is, the output of librsb-config --static --ldflags, or a directory where the usual bin/include/lib subdirs with a regular RSB installation resides, or nothing to make the configure script invoke librsb-config)]), [if test x"$withval" = xno; then
want_rsb_libs= ; else if test x"$withval" = xyes ; then want_rsb_libs=yes ; else want_rsb_libs="$withval" ; fi ; fi], [want_rsb_libs=""])
dnl AC_ARG_WITH(rsb, AS_HELP_STRING([--with-rsb], [Specify Recursive Sparse BLAS library linkage info (that is, the output of librsb-config --static --ldflags, or a directory where the usual bin/include/lib subdirs with a regular RSB installation resides, or nothing to make the configure script invoke librsb-config)]), [if test x"$withval" = xno; then
dnl want_rsb_libs= ; else if test x"$withval" = xyes ; then want_rsb_libs=yes ; else want_rsb_libs="$withval" ; fi ; fi], [want_rsb_libs=""])