1 files changed, 58 insertions, 0 deletions
diff --git a/community/mpc/0001-doc-make-upload-target-dependency-on-rsync-optional.patch b/community/mpc/0001-doc-make-upload-target-dependency-on-rsync-optional.patch
new file mode 100644
index 00000000000..a3b05e1a17e
--- /dev/null
+++ b/community/mpc/0001-doc-make-upload-target-dependency-on-rsync-optional.patch
@@ -0,0 +1,58 @@
+From b656ca4b6c2a0d5b6cebd7f7daa679352f664e0e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Tue, 30 Nov 2021 02:53:23 +0100
+Subject: [PATCH] doc: make upload target dependency on rsync optional
+
+Currently, rsync is an unconditional dependency and checked during
+`meson configure`. As such, the build will fail if rsync is not
+installed which is probably not what was intended here.
+
+From the meson documentation:
+
+	Meson will automatically insert the appropriate dependencies on
+	targets and files listed in this keyword [the command] argument.
+
+This commit fixes the unconditional dependency on rsync with an explicit
+find_program invocation with `required: false`. Also wrap the
+custom_target in an if statement since it is not allowed to use
+non-found external programs in `command`.
+---
+ doc/meson.build | 25 ++++++++++++++-----------
+ 1 file changed, 14 insertions(+), 11 deletions(-)
+
+diff --git a/doc/meson.build b/doc/meson.build
+index f9475da..62529f8 100644
+--- a/doc/meson.build
++++ b/doc/meson.build
+@@ -8,17 +8,20 @@ sphinx_output = custom_target(
+   install_dir: join_paths(get_option('datadir'), 'doc', meson.project_name()),
+ )
+ 
+-custom_target(
+-  'upload',
+-  input: sphinx_output,
+-  output: 'upload',
+-  build_always_stale: true,
+-  command: [
+-    'rsync', '-vpruz', '--delete', '@INPUT@',
+-    'www.musicpd.org:/var/www/mpd/doc/mpc/',
+-    '--chmod=a+rX',
+-  ],
+-)
++rsync = find_program('rsync', required: false)
++if rsync.found()
++  custom_target(
++    'upload',
++    input: sphinx_output,
++    output: 'upload',
++    build_always_stale: true,
++    command: [
++      rsync, '-vpruz', '--delete', '@INPUT@',
++      'www.musicpd.org:/var/www/mpd/doc/mpc/',
++      '--chmod=a+rX',
++    ],
++  )
++endif
+ 
+ custom_target(
+   'Manpage documentation',