meson: move one layer deeper to allow easy construction of a wrap file

contrib/meson/meson.build

@@ -7,6 +7,10 @@
 # in the COPYING file in the root directory of this source tree).
 # #############################################################################
 
+# This is a dummy meson file.
+# The intention is that it can be easily moved to the root of the project
+# (together with meson_options.txt) and packaged for wrapdb.
+
 project('lz4', ['c'],
   license: ['BSD', 'GPLv2'],
   default_options : ['c_std=c99',
@@ -14,112 +18,4 @@ project('lz4', ['c'],
   version: 'DUMMY',
   meson_version: '>=0.47.0')
 
-cc = meson.get_compiler('c')
-pkgconfig = import('pkgconfig')
-python3 = import('python').find_installation()
-c_std = get_option('c_std')
-default_library = get_option('default_library')
-
-host_machine_os = host_machine.system()
-os_windows = 'windows'
-os_linux = 'linux'
-os_darwin = 'darwin'
-os_freebsd = 'freebsd'
-os_sun = 'sunos'
-
-cc_id = cc.get_id()
-compiler_gcc = 'gcc'
-compiler_clang = 'clang'
-compiler_msvc = 'msvc'
-
-lz4_version = meson.project_version()
-
-lz4_h_file = join_paths(meson.current_source_dir(), '../../lib/lz4.h')
-GetLz4LibraryVersion_py = files('GetLz4LibraryVersion.py')
-r = run_command(python3, GetLz4LibraryVersion_py, lz4_h_file)
-if r.returncode() == 0
-  lz4_version = r.stdout().strip()
-  message('Project version is now: @0@'.format(lz4_version))
-else
-  error('Cannot find project version in @0@'.format(lz4_h_file))
-endif
-
-lz4_libversion = lz4_version
-
-# =============================================================================
-# Installation directories
-# =============================================================================
-
-lz4_prefix = get_option('prefix')
-lz4_bindir = get_option('bindir')
-lz4_datadir = get_option('datadir')
-lz4_mandir = get_option('mandir')
-lz4_docdir = join_paths(lz4_datadir, 'doc', meson.project_name())
-
-# =============================================================================
-# Project options
-# =============================================================================
-
-buildtype = get_option('buildtype')
-
-# Built-in options
-use_debug = get_option('debug')
-
-# Custom options
-debug_level = get_option('debug_level')
-use_backtrace = get_option('backtrace')
-
-bin_programs = get_option('bin_programs')
-bin_contrib = get_option('bin_contrib')
-bin_tests = get_option('bin_tests')
-bin_examples = get_option('bin_examples')
-#feature_multi_thread = get_option('multi_thread')
-
-# =============================================================================
-# Dependencies
-# =============================================================================
-
-#libm_dep = cc.find_library('m', required: bin_tests)
-#thread_dep = dependency('threads', required: feature_multi_thread)
-#use_multi_thread = thread_dep.found()
-
-# =============================================================================
-# Compiler flags
-# =============================================================================
-
-add_project_arguments(['-DXXH_NAMESPACE=LZ4_'], language: 'c')
-
-if [compiler_gcc, compiler_clang].contains(cc_id)
-  common_warning_flags = []
-  # Should use Meson's own --werror build option
-  #common_warning_flags += ['-Werror']
-  if c_std == 'c89' or c_std == 'gnu89'
-    common_warning_flags += ['-pedantic', '-Wno-long-long', '-Wno-variadic-macros']
-  elif c_std == 'c99' or c_std == 'gnu99'
-    common_warning_flags += ['-pedantic']
-  endif
-  cc_compile_flags = cc.get_supported_arguments(common_warning_flags)
-  add_project_arguments(cc_compile_flags, language: 'c')
-endif
-
-# =============================================================================
-# Subdirs
-# =============================================================================
-
-subdir('lib')
-
-if bin_programs
-  subdir('programs')
-endif
-
-if bin_tests
-  subdir('tests')
-endif
-
-if bin_contrib
-  subdir('contrib')
-endif
-
-if bin_examples
-  subdir('examples')
-endif
+subdir('meson')

contrib/meson/meson/contrib/gen_manual/meson.build

@@ -7,7 +7,7 @@
 # in the COPYING file in the root directory of this source tree).
 # #############################################################################
 
-lz4_root_dir = '../../../..'
+lz4_root_dir = '../../../../..'
 
 add_languages('cpp')
 cxx = meson.get_compiler('cpp')

contrib/meson/meson/examples/meson.build

@@ -7,7 +7,7 @@
 # in the COPYING file in the root directory of this source tree).
 # #############################################################################
 
-lz4_root_dir = '../../..'
+lz4_root_dir = '../../../..'
 
 #examples_c_args = ['-Wextra', '-Wundef', '-Wshadow', '-Wcast-align', '-Wstrict-prototypes']
 

contrib/meson/meson/lib/meson.build

@@ -7,7 +7,7 @@
 # in the COPYING file in the root directory of this source tree).
 # #############################################################################
 
-lz4_root_dir = '../../..'
+lz4_root_dir = '../../../..'
 
 liblz4_includes = [include_directories(join_paths(lz4_root_dir, 'lib'))]
 liblz4_sources = [join_paths(lz4_root_dir, 'lib/lz4.c'),

contrib/meson/meson/meson.build

@@ -0,0 +1,118 @@
+# #############################################################################
+# Copyright (c) 2018-present    lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+
+cc = meson.get_compiler('c')
+pkgconfig = import('pkgconfig')
+python3 = import('python').find_installation()
+c_std = get_option('c_std')
+default_library = get_option('default_library')
+
+host_machine_os = host_machine.system()
+os_windows = 'windows'
+os_linux = 'linux'
+os_darwin = 'darwin'
+os_freebsd = 'freebsd'
+os_sun = 'sunos'
+
+cc_id = cc.get_id()
+compiler_gcc = 'gcc'
+compiler_clang = 'clang'
+compiler_msvc = 'msvc'
+
+lz4_version = meson.project_version()
+
+lz4_h_file = join_paths(meson.current_source_dir(), '../../../lib/lz4.h')
+GetLz4LibraryVersion_py = files('GetLz4LibraryVersion.py')
+r = run_command(python3, GetLz4LibraryVersion_py, lz4_h_file)
+if r.returncode() == 0
+  lz4_version = r.stdout().strip()
+  message('Project version is now: @0@'.format(lz4_version))
+else
+  error('Cannot find project version in @0@'.format(lz4_h_file))
+endif
+
+lz4_libversion = lz4_version
+
+# =============================================================================
+# Installation directories
+# =============================================================================
+
+lz4_prefix = get_option('prefix')
+lz4_bindir = get_option('bindir')
+lz4_datadir = get_option('datadir')
+lz4_mandir = get_option('mandir')
+lz4_docdir = join_paths(lz4_datadir, 'doc', meson.project_name())
+
+# =============================================================================
+# Project options
+# =============================================================================
+
+buildtype = get_option('buildtype')
+
+# Built-in options
+use_debug = get_option('debug')
+
+# Custom options
+debug_level = get_option('debug_level')
+use_backtrace = get_option('backtrace')
+
+bin_programs = get_option('bin_programs')
+bin_contrib = get_option('bin_contrib')
+bin_tests = get_option('bin_tests')
+bin_examples = get_option('bin_examples')
+#feature_multi_thread = get_option('multi_thread')
+
+# =============================================================================
+# Dependencies
+# =============================================================================
+
+#libm_dep = cc.find_library('m', required: bin_tests)
+#thread_dep = dependency('threads', required: feature_multi_thread)
+#use_multi_thread = thread_dep.found()
+
+# =============================================================================
+# Compiler flags
+# =============================================================================
+
+add_project_arguments(['-DXXH_NAMESPACE=LZ4_'], language: 'c')
+
+if [compiler_gcc, compiler_clang].contains(cc_id)
+  common_warning_flags = []
+  # Should use Meson's own --werror build option
+  #common_warning_flags += ['-Werror']
+  if c_std == 'c89' or c_std == 'gnu89'
+    common_warning_flags += ['-pedantic', '-Wno-long-long', '-Wno-variadic-macros']
+  elif c_std == 'c99' or c_std == 'gnu99'
+    common_warning_flags += ['-pedantic']
+  endif
+  cc_compile_flags = cc.get_supported_arguments(common_warning_flags)
+  add_project_arguments(cc_compile_flags, language: 'c')
+endif
+
+# =============================================================================
+# Subdirs
+# =============================================================================
+
+subdir('lib')
+
+if bin_programs
+  subdir('programs')
+endif
+
+if bin_tests
+  subdir('tests')
+endif
+
+if bin_contrib
+  subdir('contrib')
+endif
+
+if bin_examples
+  subdir('examples')
+endif

contrib/meson/meson/programs/meson.build

@@ -7,7 +7,7 @@
 # in the COPYING file in the root directory of this source tree).
 # #############################################################################
 
-lz4_root_dir = '../../..'
+lz4_root_dir = '../../../..'
 
 lz4_includes = include_directories(join_paths(lz4_root_dir, 'programs'))
 lz4_sources = [join_paths(lz4_root_dir, 'programs/bench.c'),

contrib/meson/meson/tests/meson.build

@@ -7,7 +7,7 @@
 # in the COPYING file in the root directory of this source tree).
 # #############################################################################
 
-lz4_root_dir = '../../..'
+lz4_root_dir = '../../../..'
 programs_dir_inc = include_directories(join_paths(lz4_root_dir, 'programs'))
 lib_dir_inc = include_directories(join_paths(lz4_root_dir, 'lib'))