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Re: [PATCH 10/24] gnu: networkmanager-qt: Propagate network-manager.


From: David Craven
Subject: Re: [PATCH 10/24] gnu: networkmanager-qt: Propagate network-manager.
Date: Wed, 17 Aug 2016 20:14:08 +0200

> Is it possible to avoid propagating?

Quoting the manual on the section on propagated-inputs:

> For example this is necessary when a C/C++ library needs headers of another 
> library to compile, ...

So the fact that the headers of networkmanager-qt include headers from
network-manager, means that a library that uses networkmanager-qt also
needs network-manager's header files. After compilation if there
aren't any references to network-manager it won't be included in the
RUNPATH.

> or when a pkg-config file refers to another one via its Requires field.

I think the equivalent for cmake packages is a find_dependency call
inside of /lib/cmake. In this case a library that links agains
networkmanager-qt doesn't need to link agains network-manager.

> find_dependency(Qt5Core 5.4.0)

So to build hawaii-shell that depends on networkmanager-qt I either
have to add network-manager as an input or propagate it in
networkmanager-qt. I don't think that propagating the input hurts:

guix gc --references $(guix build hawaii-shell)         ~/guix
/gnu/store/1i3xmm18dw9kq6wi46f6sj9nxy9pckjl-alsa-lib-1.0.27.1
/gnu/store/3a3qhlr9ssczrkjr10jllb01mbdgsijp-pulseaudio-8.0
/gnu/store/8advwv6y780wf8l4inmrm4vzrqd56z5b-libxkbcommon-0.6.1
/gnu/store/9jfrsgr6jw9hzqj81p3vn632m79x5gla-wayland-1.11.0
/gnu/store/9nifwk709wajpyfwa0jzaa3p6mf10vxs-gcc-4.9.3-lib
/gnu/store/b8c1aaw3nghvvw6w6hc7r701rg40f5qw-qtdeclarative-5.7.0
/gnu/store/bski0qimql11q9b86h8jhhyksk1z52vp-greenisland-0.8.90
/gnu/store/hnbnz18xkkq83ckk2ph8qgbc8z4qzm6f-qtbase-5.7.0
/gnu/store/ig30hr17jq27b8wnimf9lnksgk6q4k7f-hawaii-shell-0.7.1
/gnu/store/l1s4cw9g58hmcpd2qgbckfl228143qzx-glib-2.48.0
/gnu/store/l878cqim3hl8mj7iz5a2v3mv1zn81qyr-solid-5.24.0
/gnu/store/lyisag3k6wx0pmrd0al0ipgcqaf0hpwi-qtwayland-5.7.0
/gnu/store/m4xna3zq2il5an61wxbmfv82ndvz70f6-linux-pam-1.2.1
/gnu/store/m9vxvhdj691bq1f85lpflvnhcvrdilih-glibc-2.23
/gnu/store/n3jss47pj11zq1viyibfcg0jf0ag519s-mesa-12.0.0
/gnu/store/qh2q5h2b81562ji5i9kb4nhg74gzk7n9-libhawaii-0.8.0
/gnu/store/qz5d1c538qigsws9k8hlys2hvhvbfrpc-networkmanager-qt-5.24.0
/gnu/store/r129q7kkd28xrp0slw2dqgmbs608gcgv-libqtxdg-1.2.0
/gnu/store/ykzwykkvr2c80rw4l1qh3mvfdkl7jibi-bash-4.3.42
/gnu/store/zvg8qyjsz20vjd170h4ilk7pnv7bqmm6-eudev-3.1.5

WDYT?



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