mirror of
https://github.com/pgbackrest/pgbackrest.git
synced 2024-12-14 10:13:05 +02:00
4fb8a0ecdd
This is immediately useful because it will detect any extern'd functions or variables that are not being used. It also detects functions or variables that are declared but not defined. If a FV/VR_EXTERN macro is missing it will be detected either because of a mismatch in the declaration/definition or because a new defined symbol will appear in the nm test. Eventually the unity build will be used to create a more optimized pgbackrest binary but that will need to wait.
195 lines
8.0 KiB
Meson
195 lines
8.0 KiB
Meson
####################################################################################################################################
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# pgBackRest Project
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####################################################################################################################################
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project(
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'pgbackrest',
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['c'],
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version: '2.44dev',
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license: 'MIT',
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meson_version: '>=0.45',
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default_options: [
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# Core options
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'buildtype=release',
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'warning_level=2',
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# Base options
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'b_ndebug=if-release',
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# Perform unity builds in a single file
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'unity_size=100000',
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# Compiler options
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'c_std=c99',
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],
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)
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# Selected C compiler
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cc = meson.get_compiler('c')
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####################################################################################################################################
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# OS-specific settings
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####################################################################################################################################
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if host_machine.system() == 'linux'
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add_global_arguments('-D_POSIX_C_SOURCE=200809L', language : 'c')
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elif host_machine.system() == 'darwin'
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add_global_arguments('-D_DARWIN_C_SOURCE', language : 'c')
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endif
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####################################################################################################################################
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# Enable/disable warnings
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####################################################################################################################################
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# Enable as many additional warnings as possible to catch potential errors
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warning_enable = [
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# Warn for implicit conversions that may alter a value
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'-Wconversion',
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# Warn about duplicated conditions in an if-else-if chain
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'-Wduplicated-cond',
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# Warn when an if-else has identical branches
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'-Wduplicated-branches',
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# Warn if the format string is not a string literal and cannot be checked
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'-Wformat-nonliteral',
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# Enable -Wformat plus additional format checks
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'-Wformat=2',
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# Warn if the format string requires an unsigned argument and the argument is signed and vice versa
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'-Wformat-signedness',
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# Warn about anything that depends on the “size of” a function type or of void
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'-Wpointer-arith',
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# Warn if a function is declared or defined without specifying the argument types
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'-Wstrict-prototypes',
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# Warn if a variable-length array is used
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'-Wvla',
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# Give string constants the type const char[length] so that copying the address of one into a non-const char * pointer produces
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# a warning
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'-Wwrite-strings',
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]
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# Disable various unhelpful warnings
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warning_disable = [
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# Warn for variables that might be changed by longjmp or vfork. Disable because of constant false positives/negatives.
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'-Wno-clobbered',
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# Warn if a structure’s initializer has some fields missing. Disable so we can initialize with {0}.
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'-Wno-missing-field-initializers',
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# Warn when a switch case falls through. Disable because this an useful aspect of switches and tests should catch problems.
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'-Wno-implicit-fallthrough',
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]
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add_project_arguments(cc.get_supported_arguments(warning_enable, warning_disable), language: 'c')
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####################################################################################################################################
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# Enable additional optimizations for release builds. We would prefer to use `get_option('optimization') in ['2', '3']` when our
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# minimum version is high enough to allow it.
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####################################################################################################################################
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if get_option('buildtype') == 'release'
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optimization_enable = [
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# Unroll loops whose number of iterations can be determined at compile time or upon entry to the loop
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'-funroll-loops',
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# Perform loop vectorization on trees
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'-ftree-vectorize',
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]
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add_project_arguments(cc.get_supported_arguments(optimization_enable), language: 'c')
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endif
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####################################################################################################################################
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# Stop after the first error when error on warn enabled. Subsequent errors are often caused by the first error.
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####################################################################################################################################
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if get_option('fatal-errors')
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add_project_arguments(cc.get_supported_arguments('-Wfatal-errors'), language: 'c')
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endif
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####################################################################################################################################
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# Generate -fmacro-prefix-map so the relative path to the source directory is not included in the __FILE__ macro. This provides
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# reproducible builds and minimizes the file path in debug messages, just like an in-tree make build. For test source, prefix with
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# test/ in case there are any module name collisions.
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####################################################################################################################################
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file_prefix = run_command(
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[
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'python3',
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'-c',
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'import sys, os; print(os.path.relpath(sys.argv[1], sys.argv[2]))',
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meson.current_source_dir(),
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meson.current_build_dir(),
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],
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# check: true, # This should be set when the minimum supported meson version is >= 0.47
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).stdout().strip()
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add_project_arguments(cc.get_supported_arguments('-fmacro-prefix-map=@0@/src/=' . format(file_prefix)), language: 'c')
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add_project_arguments(cc.get_supported_arguments('-fmacro-prefix-map=@0@/test/src/=test/' . format(file_prefix)), language: 'c')
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####################################################################################################################################
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# Build configuration
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####################################################################################################################################
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configuration = configuration_data()
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# Find required bz2 library
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lib_bz2 = cc.find_library('bz2')
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# Find optional lz4 library
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lib_lz4 = dependency('liblz4', required: false)
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if lib_lz4.found()
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configuration.set('HAVE_LIBLZ4', true, description: 'Is liblz4 present?')
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endif
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# Find required openssl library
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lib_openssl = dependency('openssl')
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# Find required pq library
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lib_pq = dependency('libpq')
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# Find required xml library
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lib_xml = dependency('libxml-2.0')
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# Find required yaml library (only used for build)
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lib_yaml = dependency('yaml-0.1')
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# Find required gz library
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lib_z = dependency('zlib')
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# Find optional zstd library
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lib_zstd = dependency('libzstd', version: '>=1.0', required: false)
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if lib_zstd.found()
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configuration.set('HAVE_LIBZST', true, description: 'Is libzstd present?')
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endif
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# Check if the C compiler supports _Static_assert()
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if cc.compiles('''int main(int arg, char **argv) {({ _Static_assert(1, "foo");});} ''')
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configuration.set('HAVE_STATIC_ASSERT', true, description: 'Does the compiler provide _Static_assert()?')
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endif
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# Enable debug code. We would prefer to use `get_option('debug')` when our minimum version is high enough to allow it.
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if get_option('buildtype') == 'debug' or get_option('buildtype') == 'debugoptimized'
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configuration.set('DEBUG', true, description: 'Enable debug code')
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endif
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# Set configuration path
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configuration.set_quoted('CFGOPTDEF_CONFIG_PATH', get_option('configdir'), description: 'Configuration path')
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# Set FN_NO_RETURN macro
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configuration.set('FN_NO_RETURN', '__attribute__((__noreturn__))', description: 'Indicate that a function does not return')
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# Set FN_INLINE_ALWAYS macro
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configuration.set(
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'FN_INLINE_ALWAYS', '__attribute__((always_inline)) static inline',
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description: 'Indicate that a function should always be inlined'
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)
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####################################################################################################################################
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# Include subdirs
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####################################################################################################################################
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subdir('src')
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subdir('test/src')
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