From 0caeec939fafd12dd8278f80928c86f496ffc3aa Mon Sep 17 00:00:00 2001
From: Lzu Tao <taolzu@gmail.com>
Date: Mon, 3 Dec 2018 22:48:25 +0700
Subject: meson: Correct support for Windows build

---
 contrib/meson/lib/meson.build      |  2 +-
 contrib/meson/meson.build          | 57 +++++++++++++-------------------------
 contrib/meson/programs/meson.build |  5 ++--
 3 files changed, 23 insertions(+), 41 deletions(-)

diff --git a/contrib/meson/lib/meson.build b/contrib/meson/lib/meson.build
index 7a1b5d5..f4b873e 100644
--- a/contrib/meson/lib/meson.build
+++ b/contrib/meson/lib/meson.build
@@ -33,7 +33,7 @@ liblz4 = library('lz4',
   c_args: liblz4_c_args,
   install: true,
   version: lz4_libversion,
-  soversion: '1')
+  soversion: lz4_libsoversion)
 
 liblz4_dep = declare_dependency(link_with: liblz4,
   include_directories: liblz4_includes)
diff --git a/contrib/meson/meson.build b/contrib/meson/meson.build
index 3c39034..0047444 100644
--- a/contrib/meson/meson.build
+++ b/contrib/meson/meson.build
@@ -17,6 +17,7 @@ project('lz4', ['c'],
 cc = meson.get_compiler('c')
 pkgconfig = import('pkgconfig')
 python3 = import('python').find_installation()
+c_std = get_option('c_std')
 
 host_machine_os = host_machine.system()
 os_windows = 'windows'
@@ -31,26 +32,30 @@ compiler_clang = 'clang'
 compiler_msvc = 'msvc'
 
 lz4_version = meson.project_version()
-lz4_libversion = ''
 
-c_std = get_option('c_std')
+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
+  output = r.stdout().strip()
+  if output.version_compare('>@0@'.format(lz4_version))
+    lz4_version = output
+    message('Project version is now: @0@'.format(lz4_version))
+  endif
+endif
+
+lz4_version_array = lz4_version.split('.')
+lz4_libversion = lz4_version
+lz4_libsoversion = lz4_version_array[0]
 
 # =============================================================================
 # Installation directories
 # =============================================================================
 
-if host_machine_os == os_windows
-  lz4_prefix = '.'
-  lz4_bindir = 'bin'
-  lz4_datadir = 'share'
-  lz4_mandir = join_paths(lz4_datadir, 'man')
-else
-  lz4_prefix = get_option('prefix')
-  lz4_bindir = join_paths(lz4_prefix, get_option('bindir'))
-  lz4_datadir = join_paths(lz4_prefix, get_option('datadir'))
-  lz4_mandir = join_paths(lz4_prefix, get_option('mandir'))
-endif
-
+lz4_prefix = get_option('prefix')
+lz4_bindir = join_paths(lz4_prefix, get_option('bindir'))
+lz4_datadir = join_paths(lz4_prefix, get_option('datadir'))
+lz4_mandir = join_paths(lz4_prefix, get_option('mandir'))
 lz4_docdir = join_paths(lz4_datadir, 'doc', meson.project_name())
 
 # =============================================================================
@@ -73,30 +78,6 @@ build_examples = get_option('build_examples')
 #feature_multi_thread = get_option('multi_thread')
 
 # =============================================================================
-# Helper scripts for Meson
-# =============================================================================
-
-GetLz4LibraryVersion_py = files('GetLz4LibraryVersion.py')
-
-# =============================================================================
-# Getting project version from lz4.h
-# =============================================================================
-
-lz4_h_file = join_paths(meson.current_source_dir(), 'lib/lz4.h')
-r = run_command(python3, GetLz4LibraryVersion_py, lz4_h_file)
-if r.returncode() == 0
-  output = r.stdout().strip()
-  if output.version_compare('>@0@'.format(lz4_version))
-    lz4_version = output
-    message('Project version is now: @0@'.format(lz4_version))
-  endif
-endif
-
-if host_machine_os != os_windows
-  lz4_libversion = lz4_version
-endif
-
-# =============================================================================
 # Dependencies
 # =============================================================================
 
diff --git a/contrib/meson/programs/meson.build b/contrib/meson/programs/meson.build
index b5c3228..2d39b59 100644
--- a/contrib/meson/programs/meson.build
+++ b/contrib/meson/programs/meson.build
@@ -43,9 +43,10 @@ install_man(join_paths(lz4_root_dir, 'programs/lz4.1'))
 
 InstallSymlink_py = '../InstallSymlink.py'
 lz4_man1_dir = join_paths(lz4_mandir, 'man1')
-man1_EXT = host_machine_os != os_windows ? '.1.gz' : '.1'
+bin_EXT = host_machine_os == os_windows ? '.exe' : ''
+man1_EXT = '.1.gz' # Meson automatically compresses manpages
 
 foreach f : ['lz4c', 'lz4cat', 'unlz4']
-  meson.add_install_script(InstallSymlink_py, 'lz4', f, lz4_bindir)
+  meson.add_install_script(InstallSymlink_py, 'lz4' + bin_EXT, f + bin_EXT, lz4_bindir)
   meson.add_install_script(InstallSymlink_py, 'lz4' + man1_EXT, f + man1_EXT, lz4_man1_dir)
 endforeach
-- 
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