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## Check for a cross tool, similar to AC_CHECK_TOOL, but do not fall back to
## the un-prefixed version of PROG-TO-CHECK-FOR.
## Also - if tool is not found then produce an error.
#dnl RTEMS_CHECK_TOOL(VARIABLE, PROG-TO-CHECK-FOR[, VALUE-IF-NOT-FOUND [, PATH]])
AC_DEFUN([RTEMS_CHECK_TOOL],
[
AS_IF([test "x$build_alias" != "x$host_alias"],
[rtems_tool_prefix=${ac_tool_prefix}])
RTEMS_CHECK_PROG($1, ${rtems_tool_prefix}$2, ${rtems_tool_prefix}$2, $3, $4)
AC_SUBST($1)
])
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