Initial meson build files

meson.build

@@ -0,0 +1,110 @@
+poject('webrtc-audio-processing', 'c', 'cpp',
+  version : '0.3.1',
+  meson_version : '>= 0.47',
+  default_options : [ 'warning_level=1',
+                      'buildtype=debugoptimized' ])
+
+soversion = 0
+
+cc = meson.get_compiler('c')
+
+host_system = host_machine.system()
+
+platform_cflags = []
+os_cflags = []
+os_deps = []
+have_posix = false
+have_win = false
+
+if ['darwin', 'ios'].contains(host_system)
+  os_cflags = ['-DWEBRTC_MAC', '-DWEBRTC_THREAD_RR', '-DWEBRTC_CLOCK_TYPE_REALTIME']
+  if host_system == 'ios'
+    os_cflags += ['-DWEBRTC_IOS']
+  endif
+  platform_cflags += ['-D WEBRTC_POSIX']
+  have_posix = true
+elif host_system == 'android'
+  os_cflags += ['-DWEBRTC_ANDROID', '-DWEBRTC_LINUX', '-DWEBRTC_THREAD_RR', '-DWEBRTC_CLOCK_TYPE_REALTIME']
+  os_deps += [cc.find_library('log')]
+  os_deps += [dependency('gnustl', required : get_option('gnustl'))]
+  platform_cflags += ['-DWEBRTC_POSIX']
+  have_posix = true
+elif host_system == 'linux'
+  os_cflags += ['-DWEBRTC_LINUX', '-DWEBRTC_THREAD_RR']
+  os_deps += [cc.find_library('rt', required : false)]
+  os_deps += [dependency('threads')]
+  platform_cflags += ['-DWEBRTC_POSIX']
+  have_posix = true
+elif host_system == 'windows'
+  platform_cflags += ['-DWEBRTC_WIN', '-D_WIN32', '-U__STRICT_ANSI__']
+  os_deps += [cc.find_library('winmm')]
+  have_win = true
+endif
+
+arch_cflags = []
+have_arm = false
+have_armv7 = false
+have_neon = false
+have_x86 = false
+if ['arm', 'armv7', 'aarch64'].contains(host_machine.cpu_family())
+  have_arm = true
+  arch_cflags = ['-DWEBRTC_ARCH_ARM']
+  if cc.compiles('''#ifndef __ARM_ARCH_7A__
+#error no armv7 arch
+#endif''')
+    have_armv7 = true
+    arch_cflags = ['-DWEBRTC_ARCH_ARM_V7']
+  endif
+  if cc.compiles('''#ifndef __aarch64__
+#error no aarch64 arch
+#endif''')
+    have_neon = true
+    arch_cflags = ['-DWEBRTC_ARCH_ARM64', '-DWEBRTC_HAS_NEON']
+  endif
+endif
+if ['x86', 'x86_64'].contains(host_machine.cpu_family())
+  have_x86 = true
+endif
+
+neon_opt = get_option('neon')
+if neon_opt != 'no'
+  if neon_opt != 'runtime'
+    if cc.compiles('#include <arm_neon.h>', args : '-mfpu=neon')
+      arch_cflags += ['-mfpu=neon', '-DWEBRTC_HAS_NEON']
+      have_neon = true
+    endif
+  else
+    neon_opt += ['-DWEBRTC_DETECT_NEON', '-mfpu=neon']
+    have_neon = true
+  endif
+endif
+
+noise_cflags = []
+if get_option('ns_mode') == 'float'
+  noise_cflags += ['-DWEBRTC_NS_FLOAT=1']
+else
+  noise_cflags += ['-DWEBRTC_NS_FIXED=1']
+endif
+
+common_cflags = ['-DWEBRTC_AUDIO_PROCESSING_ONLY_BUILD', '-DNDEBUG'] + platform_cflags + os_cflags + arch_cflags + noise_cflags
+common_cxxflags = ['-std=c++11'] + common_cflags
+common_deps = os_deps
+webrtc_inc = include_directories('.')
+
+subdir('webrtc')
+
+pkgconfig = import('pkgconfig')
+
+pkgconfig.generate(
+    name: 'webrtc-audio-processing',
+    description: 'WebRTC Audio Processing library',
+    version: meson.project_version(),
+    filebase: 'webrtc-audio-processing',
+    subdirs: 'webrtc_audio_processing',
+    extra_cflags: [
+      '-DWEBRTC_AUDIO_PROCESSING_ONLY_BUILD',
+    ] + platform_cflags,
+    # XXX: passing the libwebrtc_audio_processing object result in adding not-installed libraries to Libs.private
+    libraries: '-lwebrtc_audio_processing',
+    libraries_private: common_deps,
+)