[yocto] curl package config

[Antonio Santagiuliana]

Hello
I am trying to enable the SMB protocol when building curl library by Yocto
the original recipe is under meta/recipes-support/curl

in my image's local.conf I have
IMAGE_INSTALL_append += "curl-dev"

curl is built correctly, but SMB is disabled

So I tried to add a .bbappend file with same name as the recipe's name,
with this line only :
PACKAGECONFIG = "--enable-smb"

but I still have SMB disaabled on curl.

Which is the right way to enable it with PACKAGECONFIG?
or another way ?
thank you
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