On 23/04/2019 01:07, Andreas Müller wrote:
On Tue, Apr 23, 2019 at 1:55 AM Paul Barker <[email protected]> wrote:

On 23/04/2019 00:46, Andreas Müller wrote:
* qt4 support is gone -> move to qt5
* enable qt5 gui in case meta-qt5 is in layers (it is more or less useless
    without gui)
* while at it remove noop libtool copy

Signed-off-by: Andreas Müller <[email protected]>
---
V1 -> V2: Aargh again typo in commit messeage...
   .../recipes-multimedia/vlc/vlc.inc            | 25 ++++++++++++-------
   1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/meta-multimedia/recipes-multimedia/vlc/vlc.inc 
b/meta-multimedia/recipes-multimedia/vlc/vlc.inc
index 19ac8206c..6ba1444b5 100644
--- a/meta-multimedia/recipes-multimedia/vlc/vlc.inc
+++ b/meta-multimedia/recipes-multimedia/vlc/vlc.inc
@@ -36,12 +36,18 @@ EXTRA_OECONF = "\
       --enable-realrtsp \
       --disable-libtar \
       --enable-avcodec \
-    ac_cv_path_MOC=${STAGING_BINDIR_NATIVE}/moc4 \
-    ac_cv_path_RCC=${STAGING_BINDIR_NATIVE}/rcc4 \
-    ac_cv_path_UIC=${STAGING_BINDIR_NATIVE}/uic4 \
+    ac_cv_path_MOC=${STAGING_BINDIR_NATIVE}${QT_DIR_NAME}/moc \
+    ac_cv_path_RCC=${STAGING_BINDIR_NATIVE}${QT_DIR_NAME}/rcc \
+    ac_cv_path_UIC=${STAGING_BINDIR_NATIVE}${QT_DIR_NAME}/uic \
   "

-PACKAGECONFIG ?= " live555 dc1394 dv1394 notify fontconfig freetype dvdread png 
${@bb.utils.contains('DISTRO_FEATURES', 'x11', 'x11', '', d)}"
+PACKAGECONFIG ?= " \
+    live555 dc1394 dv1394 notify fontconfig freetype dvdread png \
+    ${@bb.utils.contains('DISTRO_FEATURES', 'x11', 'x11', '', d)} \
+    ${@bb.utils.contains('BBFILE_COLLECTIONS', 'qt5-layer', 'qt5', '', d)} \

I don't like this change based on BBFILE_COLLECTIONS, it's just a
different way of having things change when you add an extra layer. We
wouldn't want an unconditional bbappend in meta-qt5 to set this and so
we don't want to set it here when that layer is added.

Perhaps we should have qt5 as a distro feature instead?
Isn't that a different naming for the same thing not working properly
if you don't have meta-qt5 in layers?


Agreed, we shouldn't give people more opportunities to shoot themselves in the foot!

For my builds I have all layers added all the time and just enable/disable features as needed. So just because meta-qt5 is included as a layer doesn't mean I'm even building an x11 or weston configuration, it could be command line only in which case I wouldn't want this extra PACKAGECONFIG creeping in.

meta-virtualization handles this by gating overrides on a 'virtualization' distro feature and adding a sanity check that you enabled that distro feature when adding the layer (http://git.yoctoproject.org/cgit/cgit.cgi/meta-virtualization/tree/classes/sanity-meta-virt.bbclass). The sanity check can be disabled by setting SKIP_META_VIRT_SANITY_CHECK. I find it a bit messy but it does work.

What would work for this case is a bbappend in meta-qt5 which checks for the 'qt5' distro feature. The benefit of using a distro feature is that we can gate changes to other recipes on the same configuration setting so that we don't need to set lots of PACKAGECONFIG values explicitly in a distro or local.conf.

Forgive my 01:40 AM brain if any of that doesn't make sense.

Andreas


--
Paul Barker
Managing Director & Principal Engineer
Beta Five Ltd
--
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