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package/libcamera: add explicit dependency on libevent if libevent package to be built

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The cam application requires libevent. Since there's no Kconfig option
for it, cam building ability is checked by meson build system by default.

If libevent is present in the sysroot, cam is built.

The issue is that there's no explicit dependency on libevent in
libcamera package. This means that it is possible for libevent AND
libcamera to be built, but have libcamera be built before libevent.
Meaning that even if all requirements seem to be fulfilled, cam still
won't be enabled in some cases.

This fixes the possible race by expliciting the dependency to libevent
if the libevent package is enabled. Otherwise, explicitly disable cam
building as it's already known that it isn't going to build.

Cc: Quentin Schulz <foss+buildroot@0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Quentin Schulz 2022-07-11 15:18:23 +02:00 committed by Yann E. MORIN
parent 98ecdd1d11
commit 030baf89fc
1 changed files with 7 additions and 0 deletions
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7
package/libcamera/libcamera.mk
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@ -84,6 +84,13 @@ else
LIBCAMERA_CONF_OPTS += -Dqcam=disabled
endif
ifeq ($(BR2_PACKAGE_LIBEVENT),y)
LIBCAMERA_CONF_OPTS += -Dcam=enabled
LIBCAMERA_DEPENDENCIES += libevent
else
LIBCAMERA_CONF_OPTS += -Dcam=disabled
endif
ifeq ($(BR2_PACKAGE_TIFF),y)
LIBCAMERA_DEPENDENCIES += tiff
endif