add ubuntu name package explicitly as new sub-item of GEM_DEPENDS var
add ubuntu name package explicitly as new sub-item of GEM_DEPENDS var


Former-commit-id: 9e310c65ece042cd4e56d5c78ef8a4ba9b11411a [formerly 4f677d8da9653eb7da2762752f07863020bafdc7] [formerly 4f677d8da9653eb7da2762752f07863020bafdc7 [formerly 0b3519f4a1ddaa95c2b1c675a88b29da997f3589]]
Former-commit-id: 415c16c60ecc0bceb8b06999853a4b7d63a7cfc8
Former-commit-id: 96fad366fc041cdb15748e70572121220729d4d7
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine