Files
buildroot/package/libcamera/libcamera.mk
Quentin Schulz 4a94500c21 package/libcamera: add explicit dependency on libevent if libevent package to be built
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>
(cherry picked from commit 030baf89fc)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2022-08-09 16:50:38 +02:00

135 lines
4.0 KiB
Makefile

################################################################################
#
# libcamera
#
################################################################################
LIBCAMERA_SITE = https://git.linuxtv.org/libcamera.git
LIBCAMERA_VERSION = 8a845ab078c3fe12ac4edd16c8cbac5b7ec03b98
LIBCAMERA_SITE_METHOD = git
LIBCAMERA_DEPENDENCIES = \
host-openssl \
host-pkgconf \
host-python-jinja2 \
host-python-ply \
host-python-pyyaml \
gnutls
LIBCAMERA_CONF_OPTS = \
-Dandroid=disabled \
-Ddocumentation=disabled \
-Dtest=false \
-Dwerror=false
LIBCAMERA_INSTALL_STAGING = YES
LIBCAMERA_LICENSE = \
LGPL-2.1+ (library), \
GPL-2.0+ (utils), \
MIT (qcam/assets/feathericons), \
BSD-2-Clause (raspberrypi), \
GPL-2.0 with Linux-syscall-note or BSD-3-Clause (linux kernel headers), \
CC0-1.0 (meson build system), \
CC-BY-SA-4.0 (doc)
LIBCAMERA_LICENSE_FILES = \
LICENSES/LGPL-2.1-or-later.txt \
LICENSES/GPL-2.0-or-later.txt \
LICENSES/MIT.txt \
LICENSES/BSD-2-Clause.txt \
LICENSES/GPL-2.0-only.txt \
LICENSES/Linux-syscall-note.txt \
LICENSES/BSD-3-Clause.txt \
LICENSES/CC0-1.0.txt \
LICENSES/CC-BY-SA-4.0.txt
ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_7),y)
LIBCAMERA_CXXFLAGS = -faligned-new
endif
ifeq ($(BR2_PACKAGE_LIBCAMERA_V4L2),y)
LIBCAMERA_CONF_OPTS += -Dv4l2=true
else
LIBCAMERA_CONF_OPTS += -Dv4l2=false
endif
LIBCAMERA_PIPELINES-$(BR2_PACKAGE_LIBCAMERA_PIPELINE_IPU3) += ipu3
ifeq ($(BR2_PACKAGE_LIBCAMERA_PIPELINE_RASPBERRYPI),y)
LIBCAMERA_PIPELINES-y += raspberrypi
LIBCAMERA_DEPENDENCIES += boost
endif
LIBCAMERA_PIPELINES-$(BR2_PACKAGE_LIBCAMERA_PIPELINE_RKISP1) += rkisp1
LIBCAMERA_PIPELINES-$(BR2_PACKAGE_LIBCAMERA_PIPELINE_SIMPLE) += simple
LIBCAMERA_PIPELINES-$(BR2_PACKAGE_LIBCAMERA_PIPELINE_UVCVIDEO) += uvcvideo
LIBCAMERA_PIPELINES-$(BR2_PACKAGE_LIBCAMERA_PIPELINE_VIMC) += vimc
LIBCAMERA_CONF_OPTS += -Dpipelines=$(subst $(space),$(comma),$(LIBCAMERA_PIPELINES-y))
ifeq ($(BR2_PACKAGE_LIBCAMERA_COMPLIANCE),y)
LIBCAMERA_DEPENDENCIES += gtest libevent
LIBCAMERA_CONF_OPTS += -Dlc-compliance=enabled
else
LIBCAMERA_CONF_OPTS += -Dlc-compliance=disabled
endif
# gstreamer-video-1.0, gstreamer-allocators-1.0
ifeq ($(BR2_PACKAGE_GSTREAMER1)$(BR2_PACKAGE_GST1_PLUGINS_BASE),yy)
LIBCAMERA_CONF_OPTS += -Dgstreamer=enabled
LIBCAMERA_DEPENDENCIES += gstreamer1 gst1-plugins-base
endif
ifeq ($(BR2_PACKAGE_QT5BASE_WIDGETS),y)
LIBCAMERA_CONF_OPTS += -Dqcam=enabled
LIBCAMERA_DEPENDENCIES += qt5base
ifeq ($(BR2_PACKAGE_QT5TOOLS_LINGUIST_TOOLS),y)
LIBCAMERA_DEPENDENCIES += qt5tools
endif
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
ifeq ($(BR2_PACKAGE_HAS_UDEV),y)
LIBCAMERA_DEPENDENCIES += udev
endif
ifeq ($(BR2_PACKAGE_LTTNG_LIBUST),y)
LIBCAMERA_CONF_OPTS += -Dtracing=enabled
LIBCAMERA_DEPENDENCIES += lttng-libust
else
LIBCAMERA_CONF_OPTS += -Dtracing=disabled
endif
ifeq ($(BR2_PACKAGE_LIBEXECINFO),y)
LIBCAMERA_DEPENDENCIES += libexecinfo
LIBCAMERA_LDFLAGS = $(TARGET_LDFLAGS) -lexecinfo
endif
# Open-Source IPA shlibs need to be signed in order to be runnable within the
# same process, otherwise they are deemed Closed-Source and run in another
# process and communicate over IPC.
# Buildroot sanitizes RPATH in a post build process. meson gets rid of rpath
# while installing so we don't need to do it manually here.
# Buildroot may strip symbols, so we need to do the same before signing
# otherwise the signature won't match the shlib on the rootfs. Since meson
# install target is signing the shlibs, we need to strip them before.
LIBCAMERA_STRIP_FIND_CMD = \
find $(@D)/build/src/ipa \
$(if $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES)), \
-not \( $(call findfileclauses,$(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) ) \
-type f -name 'ipa_*.so' -print0
define LIBCAMERA_BUILD_STRIP_IPA_SO
$(LIBCAMERA_STRIP_FIND_CMD) | xargs --no-run-if-empty -0 $(STRIPCMD)
endef
LIBCAMERA_POST_BUILD_HOOKS += LIBCAMERA_BUILD_STRIP_IPA_SO
$(eval $(meson-package))