IUSE="gnat_2016 gnat_2017 +gnat_2018 gnat_2019 +shared static-libs static-pic"
RDEPEND="
- dev-ada/libgpr[gnat_2016=,gnat_2017=,gnat_2018=,gnat_2019=]
+ dev-ada/libgpr[gnat_2016?,gnat_2017?,gnat_2018?,gnat_2019?]
dev-ada/libgpr[shared?,static-libs?,static-pic?]
!dev-ada/gnatcoll"
DEPEND="${RDEPEND}
- dev-ada/gprbuild[gnat_2016=,gnat_2017=,gnat_2018=,gnat_2019=]"
+ dev-ada/gprbuild
+ gnat_2016? ( dev-ada/gprbuild[gnat_2016] )
+ dev-ada/gprbuild[gnat_2017?,gnat_2018?,gnat_2019?]"
+
+REQUIRED_USE="^^ ( gnat_2016 gnat_2017 gnat_2018 gnat_2019 )"
S="${WORKDIR}"/${MYP}-src