Add csharp/gstreamer-sharp support

gst-uninstalled.py

@@ -61,9 +61,12 @@ def get_subprocess_env(options):
     targets_s = subprocess.check_output([sys.executable, mesonintrospect, options.builddir, '--targets'])
     targets = json.loads(targets_s.decode())
     paths = set()
+    mono_paths = set()
     for target in targets:
         filename = target['filename']
         root = os.path.dirname(filename)
+        if filename.endswith('.dll'):
+            mono_paths.add(os.path.join(options.builddir, root))
         if typelib_reg.search(filename):
             prepend_env_var(env, "GI_TYPELIB_PATH",
                             os.path.join(options.builddir, root))
@@ -83,6 +86,10 @@ def get_subprocess_env(options):
     for p in paths:
         prepend_env_var(env, 'PATH', p)
 
+    if os.name != 'nt':
+        for p in mono_paths:
+            prepend_env_var(env, "MONO_PATH", p)
+
     presets = set()
     encoding_targets = set()
     pkg_dirs = set()

meson.build

@@ -87,6 +87,18 @@ if not get_option('disable_rtsp_server')
     subprojects += ['gst-rtsp-server']
 endif
 
+if not get_option('disable_gstreamer_sharp')
+  if add_languages('cs')
+    if meson.version().version_compare('>=0.43')
+      subprojects += ['gstreamer-sharp']
+    else
+      message('WARNING: Not building gstramer-sharp as meson >=0.43 not found.')
+    endif
+  else
+    message('WARNING: Not building gstramer-sharp as no CS compiler found.')
+  endif
+endif
+
 python3 = find_program('python3')
 symlink = '''
 import os
@@ -102,6 +114,7 @@ foreach custom_subproj: get_option('custom_subprojects').split(',')
     endif
 endforeach
 
+message('Building subprojects: ' + ', '.join(subprojects))
 foreach subproj: subprojects
     default_options = []
     if get_option('disable_introspection')

meson_options.txt

@@ -7,6 +7,7 @@ option('disable_gst_editing_services', type : 'boolean', value : false)
 option('disable_rtsp_server', type : 'boolean', value : false)
 option('disable_gst_omx', type : 'boolean', value : true)
 option('disable_gstreamer_vaapi', type : 'boolean', value : false)
+option('disable_gstreamer_sharp', type : 'boolean', value : false)
 option('disable_introspection',
         type : 'boolean', value : false,
         description : 'Whether to disable the introspection generation')

subprojects/gstreamer-sharp.wrap

@@ -0,0 +1,5 @@
+[wrap-git]
+directory=gstreamer-sharp
+url=https://anongit.freedesktop.org/git/gstreamer/gstreamer-sharp.git
+push-url=ssh://git.freedesktop.org/git/gstreamer/gstreamer-sharp
+revision=master

subprojects/gtk-sharp.wrap

@@ -0,0 +1,4 @@
+[wrap-git]
+directory=gtk-sharp
+url=https://github.com/gtk-sharp/gtk-sharp.git
+revision=master