[AT_CHECK([$CC $CFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])m4_default([$2], [$1.c]) m4_bmatch([$1], [[.]], [], [$LIBS ])-o $1],
0, [ignore], [ignore])])
[AT_CHECK([$CC $CFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])m4_default([$2], [$1.c]) m4_bmatch([$1], [[.]], [], [$LIBS ])-o $1],
0, [ignore], [ignore])])