```bitbake
require sdcc_${PV}.bb
DEPENDS = ""

# don't need native-tools patch here
SRC_URI = "${SOURCEFORGE_MIRROR}/sdcc/sdcc-src-${PV}.tar.bz2 \
          "

inherit native

do_stage() {
        oe_runmake install
}

```

Add bison-native and flex-native to DEPENDS
user
```bitbake
require sdcc_${PV}.bb
DEPENDS = "bison-native flex-native"
PR = "r1"

# don't need native-tools patch here
SRC_URI = "${SOURCEFORGE_MIRROR}/sdcc/sdcc-src-${PV}.tar.bz2 \
          "

inherit native

do_stage() {
        oe_runmake install
}

```
assistant