REQUIRE_BINARY will be invoked with the result of a find_program invocation. The old REQUIRE_BINARY implementation assumed, an unfound program would result in the definition of a second variable VAR-NOTFOUND. Instead the actual behaviour of find_program will assign the value VAR-NOTFOUND to the variable VAR. Thus the new implementation will catch errors finding programs while the old did not.
Moreover the error message is fixed, old output was Could not find binname while the new will substitue the variable binname thus resulting in e.g. Could not find xgettext.
REQUIRE_BINARYwill be invoked with the result of a find_program invocation. The oldREQUIRE_BINARYimplementation assumed, an unfound program would result in the definition of a second variableVAR-NOTFOUND. Instead the actual behaviour offind_programwill assign the valueVAR-NOTFOUNDto the variableVAR. Thus the new implementation will catch errors finding programs while the old did not.Moreover the error message is fixed, old output was
Could not find binnamewhile the new will substitue the variablebinnamethus resulting in e.g.Could not find xgettext.