165 lines
6.3 KiB
Meson
165 lines
6.3 KiB
Meson
# 17 march 2019
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# Here's the overall idea: the build syntax would be something like
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# $ meson setup build \
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# [--buildtype=debug|release] \ (core option, default debug)
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# [--default_library=static|shared] \ (core option, default shared)
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# [--b_sanitize=whatever]
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# It turns out that I wouldn't really need any custom options; go figure.
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# I'm not sure how to allow building 32-bit instead of 64-bit with meson.
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# I'd also like all the outputs to appear in a folder out/ in the build folder.
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# I'd also like to be able to omit the library's dependency libraries in the executables if building a shared library, as those are not required in that case; I'd need to require them in a static library.
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# And for Windows, the shared library (but not shared executables) needs an additional resource file, and the static executables (but not the static library) need a *different* resource file. (Windows static libraries can't contain resources anyway; the linkers will just ignore the resource objects.)
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# we have to specify C++ here even if we're not using C++ immediately because otherwise none of the C++ built-in options are available (sigh; TODO)
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project('libui', ['c', 'cpp'],
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meson_version: '>=0.48.0',
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default_options: [
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'buildtype=debug', # build debug by default
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'default_library=shared', # build shared libraries by default
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# these are forced options, but meson doesn't let me set these up separately before I call project() (TODO)
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'warning_level=3', # always max warnings
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'b_pch=false', # we don't want precompiled headers
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'b_staticpic=true', # use PIC even for static libraries
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'c_std=c99', # strict C99
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'c_winlibs=', # we define our own Windows libraries
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'cpp_std=c++11', # strict C++11
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'cpp_eh=sc', # shut the compiler up in some cases
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'cpp_winlibs=', # likewise as with c_winlibs
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],
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license: 'MIT')
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# TODO move these below the next part (I need them here for other reasons)
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libui_OS = host_machine.system()
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libui_MSVC = meson.get_compiler('c').get_id() == 'msvc'
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if libui_OS == 'darwin'
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add_languages('objc',
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required: true)
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endif
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# TODO switch to tabs; the spaces are just so I can share this file while I'm writing it
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libui_forced_options = {
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'warning_level': '3', # always max warnings
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'b_pch': 'false', # we don't want precompiled headers
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'b_staticpic': 'true', # use PIC even for static libraries
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'c_std': 'c99', # strict C99
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'c_winlibs': '[]', # we define our own Windows libraries
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'cpp_std': 'c++11', # strict C++11
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'cpp_eh': 'sc', # shut the compiler up in some cases
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'cpp_winlibs': '[]', # likewise as with c_winlibs
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}
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foreach name, value : libui_forced_options
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# TODO why does meson need this guard? why aren't all options defined regardless of target?!
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if not ((name == 'c_winlibs' or name == 'cpp_eh' or name == 'cpp_winlibs') and not libui_MSVC) and not (name == 'c_std' and libui_MSVC)
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actual = '@0@'.format(get_option(name))
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if actual != value
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error('sorry, but libui requires that option ' + name + ' has the default value ' + value)
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endif
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endif
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endforeach
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libui_mode = get_option('default_library')
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if libui_mode == 'both'
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error('sorry, but libui does not support building both shared and static libraries at the same time, because Windows resource file rules differ between the two')
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endif
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libui_is_debug = get_option('buildtype').startswith('debug')
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if libui_OS == 'darwin'
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# TODO see if there's a more direct way to set this
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libui_macosx_version_min = '-mmacosx-version-min=10.8'
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add_project_arguments(libui_macosx_version_min,
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# TODO WHY IS THIS NEEDED MESON
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language: ['c', 'cpp', 'objc'])
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add_project_link_arguments(libui_macosx_version_min,
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language: ['c', 'cpp', 'objc'])
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endif
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# TODO see if there's a more direct way to set any of these
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if libui_MSVC
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# TODO subsystem version
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# TODO is there a -Wno-switch equivalent?
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# TODO /sdl turns C4996 into an ERROR
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# don't use /analyze; that requires us to write annotations everywhere
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# TODO undecided flags from qo?
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# the RTC flags are only supplied in debug builds because they are only supposed to be used by debug builds (see "This is because run-time error checks are not valid in a release (optimized) build." in https://docs.microsoft.com/cpp/build/reference/rtc-run-time-error-checks)
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# /RTCc is not supplied because it's discouraged as of VS2015; see https://www.reddit.com/r/cpp/comments/46mhne/rtcc_rejects_conformant_code_with_visual_c_2015/d06auq5
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# TODO add these compiler flags (assuming meson doesn't provide an alternate method for these, which I know it does for EHsc):
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add_project_arguments(
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'/wd4100',
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'/bigobj',
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language: ['c', 'cpp', 'objc'])
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if libui_is_debug
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add_project_arguments('/RTC1', '/RTCs', '/RTCu',
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language: ['c', 'cpp', 'objc'])
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endif
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add_project_link_arguments(
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'/LARGEADDRESSAWARE',
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'/INCREMENTAL:NO',
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'/MANIFEST:NO',
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language: ['c', 'cpp', 'objc'])
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else
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add_project_arguments(
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'-Wno-unused-parameter',
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'-Wno-switch',
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language: ['c', 'cpp', 'objc'])
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if libui_OS == 'windows'
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# don't require shipping the MinGW-w64 DLLs
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add_project_link_arguments(
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'-static',
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'-static-libgcc',
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'-static-libstdc++',
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language: ['c', 'cpp', 'objc'])
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endif
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endif
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libui_manifest_args = []
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if libui_mode == 'static'
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add_project_arguments('-D_UI_STATIC',
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language: ['c', 'cpp', 'objc'])
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libui_manifest_args = ['-D_UI_STATIC']
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endif
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libui_sources = []
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libui_deps = []
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libui_soversion = ''
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libui_rpath = ''
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subdir('common')
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if libui_OS == 'windows'
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subdir('windows')
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install_headers('ui_windows.h')
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elif libui_OS == 'darwin'
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subdir('darwin')
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install_headers('ui_darwin.h')
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else
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subdir('unix')
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install_headers('ui_unix.h')
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endif
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libui_libui = library('ui', libui_sources,
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dependencies: libui_deps,
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build_rpath: libui_rpath,
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install_rpath: libui_rpath,
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name_prefix: 'lib', # always call it libui, even in Windows DLLs
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install: true,
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gnu_symbol_visibility: 'hidden',
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c_args: ['-Dlibui_EXPORTS'],
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cpp_args: ['-Dlibui_EXPORTS'],
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objc_args: ['-Dlibui_EXPORTS'],
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soversion: libui_soversion,
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darwin_versions: []) # TODO
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install_headers('ui.h')
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# TODO when the API is stable enough to be versioned, create a pkg-config file (https://mesonbuild.com/Pkgconfig-module.html) and a declare_dependency() section too
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libui_binary_deps = []
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if libui_mode == 'static'
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libui_binary_deps = libui_deps
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endif
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subdir('test')
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subdir('examples')
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