build: experimental support for the meson build system

mu4e/meson.build

@@ -0,0 +1,79 @@
+## Copyright (C) 2021 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software Foundation,
+## Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+
+mu4e_meta = configure_file(
+  input: 'mu4e-meta.el.in',
+  output: 'mu4e-meta.el',
+  configuration:
+    {
+      'VERSION'         : meson.project_version(),
+      # project_build_root() with meson >= 0.56
+      'abs_top_builddir': join_paths(meson.build_root()),
+      'MU_DOC_DIR'      : join_paths(datadir, 'doc', 'mu')
+    })
+
+
+mu4e_srcs=[
+  'mu4e-actions.el',
+  'mu4e-compose.el',
+  'mu4e-context.el',
+  'mu4e-contrib.el',
+  'mu4e-draft.el',
+  'mu4e.el',
+  'mu4e-headers.el',
+  'mu4e-icalendar.el',
+  'mu4e-lists.el',
+  'mu4e-main.el',
+  'mu4e-mark.el',
+  'mu4e-message.el',
+  join_paths(meson.current_build_dir(), 'mu4e-meta.el'),
+  'mu4e-org.el',
+  'mu4e-proc.el',
+  'mu4e-speedbar.el',
+  'mu4e-utils.el',
+  'mu4e-vars.el',
+  'mu4e-view.el',
+  'org-mu4e.el',
+]
+
+foreach src : mu4e_srcs
+  target_name= '@BASENAME@.elc'
+  target_path = join_paths(meson.current_build_dir(), target_name)
+  target_func = '(setq byte-compile-dest-file-function(lambda(_) "' + target_path + '"))'
+  custom_target(src.underscorify() + '_el',
+                build_by_default: true,
+                input: src,
+                output: target_name,
+                command: [emacs,
+			  '--no-init-file',
+			  '--batch',
+			  '--eval', target_func,
+			  '--directory', meson.current_source_dir(),
+			  '--funcall', 'batch-byte-compile', '@INPUT@'])
+endforeach
+
+
+if makeinfo.found()
+  custom_target('mu4e_info',
+		input: 'mu4e.texi',
+		output: 'mu4e.info',
+		install_dir: infodir,
+		install: true,
+		command: [makeinfo,
+			  '-o', join_paths(meson.current_build_dir(), 'mu4e.info'),
+			  join_paths(meson.current_source_dir(), 'mu4e.texi')])
+endif