[gtkmm/win32-installer-update-3: 11/13] meson: Copy COPYING to win32_installer/meson

[Chun-wei Fan <fanchunwei src gnome org>]

commit 53c49559bd6cd48316d7ffcf7c17593517770e25
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Wed May 11 16:09:55 2022 +0800

    meson: Copy COPYING to win32_installer/meson
    
    ...when building on Windows.  This is what will form the lgpl.txt in the
    installer.

 meson.build                 | 3 +++
 win32_installer/meson.build | 6 ++++--
 2 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index 35bdcc56..754084d8 100644
--- a/meson.build
+++ b/meson.build
@@ -366,6 +366,9 @@ endif
 # add_dist_script() is not allowed in a subproject if meson.version() < 0.58.0.
 can_add_dist_script = not meson.is_subproject() or meson.version().version_compare('>= 0.58.0')
 
+# Used for building the Windows NSIS installer
+lgpl_license = files(['COPYING'])
+
 subdir('tools/extra_defs_gen')
 subdir('MSVC_NMake/gendef')
 subdir('gdk')
diff --git a/win32_installer/meson.build b/win32_installer/meson.build
index 70e27d22..1648a1da 100644
--- a/win32_installer/meson.build
+++ b/win32_installer/meson.build
@@ -1,7 +1,7 @@
 # win32_installer
 
-# Input: pkg_conf_data
-# Output: gtkmm_installer_nsi
+# Input: pkg_conf_data, lgpl_license
+# Output: gtkmm_installer_nsi, lgpl_license_txt
 
 if host_machine.system() != 'windows'
   message('NSIS installer is only possible on Windows')
@@ -24,5 +24,7 @@ foreach f: installer_data_files
   configure_file(input: f, output: f, copy: true)
 endforeach
 
+lgpl_license_txt = configure_file(input: lgpl_license, output: 'lgpl.txt', copy: true)
+
 subdir('NSISLibrary')
 subdir('translations')