fetch $M4_URL

cd "$SOURCES" && tar xf m4-$M4_VERSION.tar.xz && cd m4-$M4_VERSION

sed -r '/_GL_EXTERN_C/s/w?memchr|bsearch/(&)/' -i $(find -name \*.in.h)

./configure \
	--prefix=/usr \
	--host=$TARGET \
	--build=$(build-aux/config.guess) \
	--disable-nls \
	--silent \
	--quiet

make  && make DESTDIR="$SYSROOT" install

cd "$SOURCES" && rm -rf m4-$M4_VERSION