dbafe16da7
We build libcamera with -Wno-unused-parameter and this doesn't cause much issue internally. However, it prevents catching unused parameters in inline functions defined in public headers. This can lead to compilation warnings for applications compiled without -Wno-unused-parameter. To catch those issues, remove -Wno-unused-parameter and fix all the related warnings with [[maybe_unused]]. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
144 lines
4.6 KiB
Meson
144 lines
4.6 KiB
Meson
# SPDX-License-Identifier: CC0-1.0
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project('libcamera', 'c', 'cpp',
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meson_version : '>= 0.47',
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version : '0.0.0',
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default_options : [
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'werror=true',
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'warning_level=2',
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'cpp_std=c++17',
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],
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license : 'LGPL 2.1+')
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# Generate version information. The libcamera_git_version variable contains the
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# full version with git patch count and SHA1 (e.g. 1.2.3+211-c94a24f4), while
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# the libcamera_version variable contains the major.minor.patch (e.g. 1.2.3)
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# only. If the source tree isn't under git control, or if it matches the last
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# git version tag, the build metadata (e.g. +211-c94a24f4) is omitted from
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# libcamera_git_version.
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libcamera_git_version = run_command('utils/gen-version.sh',
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meson.build_root()).stdout().strip()
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if libcamera_git_version == ''
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libcamera_git_version = meson.project_version()
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endif
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libcamera_version = libcamera_git_version.split('+')[0]
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# Configure the build environment.
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cc = meson.get_compiler('c')
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config_h = configuration_data()
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if cc.has_header_symbol('execinfo.h', 'backtrace')
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config_h.set('HAVE_BACKTRACE', 1)
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endif
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if cc.has_header_symbol('stdlib.h', 'secure_getenv', prefix : '#define _GNU_SOURCE')
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config_h.set('HAVE_SECURE_GETENV', 1)
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endif
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common_arguments = [
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'-include', 'config.h',
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]
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c_arguments = []
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cpp_arguments = []
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if cc.get_id() == 'clang'
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if cc.version().version_compare('<5')
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error('clang version is too old, libcamera requires 5.0 or newer')
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endif
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# Turn _FORTIFY_SOURCE by default on optimised builds (as it requires -O1
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# or higher). This is needed on clang only as gcc enables it by default.
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if get_option('optimization') != '0'
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common_arguments += [
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'-D_FORTIFY_SOURCE=2',
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]
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endif
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# Use libc++ by default if available instead of libstdc++ when compiling
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# with clang.
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if cc.find_library('libc++', required: false).found()
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cpp_arguments += [
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'-stdlib=libc++',
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]
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endif
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endif
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if cc.get_id() == 'gcc'
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if cc.version().version_compare('<7')
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error('gcc version is too old, libcamera requires 7.0 or newer')
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endif
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# gcc 7.1 introduced processor-specific ABI breakages related to parameter
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# passing on ARM platforms. This generates a large number of messages
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# during compilation with gcc >=7.1 until gcc 9. Silence them.
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if (host_machine.cpu_family() == 'arm' and
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cc.version().version_compare('>=7.1') and
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cc.version().version_compare('<9'))
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cpp_arguments += [
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'-Wno-psabi',
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]
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endif
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endif
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# We use C99 designated initializers for arrays as C++ has no equivalent
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# feature. Both gcc and clang support this extension, but recent
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# versions of clang generate a warning that needs to be disabled.
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if cc.has_argument('-Wno-c99-designator')
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common_arguments += [
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'-Wno-c99-designator',
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]
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endif
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c_arguments += common_arguments
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cpp_arguments += common_arguments
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add_project_arguments(c_arguments, language : 'c')
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add_project_arguments(cpp_arguments, language : 'cpp')
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add_project_link_arguments(cpp_arguments, language : 'cpp')
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libcamera_includes = include_directories('include')
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subdir('include')
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subdir('src')
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subdir('utils')
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# The documentation and test components are optional and can be disabled
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# through configuration values. They are enabled by default.
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if get_option('documentation')
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subdir('Documentation')
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endif
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if get_option('test')
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subdir('test')
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endif
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if not meson.is_cross_build()
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kernel_version_req = '>= 5.0.0'
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kernel_version = run_command('uname', '-r').stdout().strip()
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if not kernel_version.version_compare(kernel_version_req)
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warning('The current running kernel version @0@ is too old to run libcamera.'
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.format(kernel_version))
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warning('If you intend to use libcamera on this machine, please upgrade to a kernel @0@.'
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.format(kernel_version_req))
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endif
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endif
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# Create a symlink from the build root to the source root. This is used when
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# running libcamera from the build directory to locate resources in the source
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# directory (such as IPA configuration files).
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run_command('ln', '-fsT', meson.source_root(),
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join_paths(meson.build_root(), 'source'))
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configure_file(output : 'config.h', configuration : config_h)
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pkg_mod = import('pkgconfig')
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pkg_mod.generate(libraries : libcamera,
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version : '1.0',
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name : 'libcamera',
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filebase : 'camera',
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description : 'Complex Camera Support Library',
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subdirs : 'libcamera')
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