Merge branch 'c99-main' into 'main'

Build base and good with the c99 c_std option

Closes #1602

See merge request gstreamer/gstreamer!3466

subprojects/gst-plugins-base/gst-libs/gst/gl/meson.build

@@ -1093,6 +1093,14 @@ if build_gstgl
   # case-insensitive FS would include gst-libs/gl/egl/egl.h as EGL/egl.h.
   common_args += '-I@0@'.format(meson.current_build_dir())
 
+  system = host_machine.system()
+
+  if system in ['linux', 'android']
+    common_args += [
+      '-D_GNU_SOURCE',
+    ]
+  endif
+
   gstgl = library('gstgl-' + api_version,
     gl_sources, gl_egl_sources, gl_x11_sources, gl_wayland_sources, gl_viv_fb_sources, gl_priv_sources, gl_enumtypes_c, gl_enumtypes_h,
     c_args : common_args,

subprojects/gst-plugins-base/gst-libs/gst/rtsp/meson.build

@@ -32,17 +32,31 @@ rtsp_enums = gnome.mkenums_simple('gstrtsp-enumtypes',
 gstrtsp_c = rtsp_enums[0]
 gstrtsp_h = rtsp_enums[1]
 
-if host_system == 'windows'
+compile_args = [
+  '-DBUILDING_GST_RTSP',
+  '-DG_LOG_DOMAIN="GStreamer-RTSP"'
+]
+
+# OS-specific settings
+system = host_machine.system()
+
+if system == 'windows'
   winsock2 = cc.find_library('ws2_32')
 else
   winsock2 = []
+
+  if system in ['linux', 'android']
+    compile_args += [
+      '-D_GNU_SOURCE',
+    ]
+  endif
 endif
 gstrtsp_deps = [gst_base_dep, gst_dep, gio_dep, libm, winsock2]
 
 gst_rtsp = library('gstrtsp-@0@'.format(api_version),
   rtsp_sources,
   gstrtsp_h, gstrtsp_c,
-  c_args : gst_plugins_base_args + ['-DBUILDING_GST_RTSP', '-DG_LOG_DOMAIN="GStreamer-RTSP"'],
+  c_args : gst_plugins_base_args + compile_args,
   include_directories: [configinc, libsinc],
   version : libversion,
   soversion : soversion,

subprojects/gst-plugins-base/gst/tcp/meson.build

@@ -12,12 +12,21 @@ tcp_sources = [
 ]
 
 if core_conf.has('HAVE_SYS_SOCKET_H')
-   tcp_sources += 'gstmultifdsink.c'
+  tcp_sources += 'gstmultifdsink.c'
+endif
+
+system = host_machine.system()
+
+compile_args = []
+if system in ['linux', 'android']
+  compile_args += [
+    '-D_GNU_SOURCE',
+  ]
 endif
 
 gsttcp = library('gsttcp',
   tcp_sources,
-  c_args : gst_plugins_base_args,
+  c_args : gst_plugins_base_args + compile_args,
   include_directories: [configinc, libsinc],
   dependencies : [gst_base_dep, gst_net_dep, gio_dep],
   install : true,

subprojects/gst-plugins-base/meson.build

@@ -2,7 +2,8 @@ project('gst-plugins-base', 'c',
   version : '1.25.0.1',
   meson_version : '>= 1.1',
   default_options : [ 'warning_level=1',
-                      'buildtype=debugoptimized' ])
+                      'buildtype=debugoptimized',
+                      'c_std=c99' ])
 
 gst_version = meson.project_version()
 version_arr = gst_version.split('.')

subprojects/gst-plugins-good/gst/udp/meson.build

@@ -8,9 +8,18 @@ udp_sources = [
   'gstudpnetutils.c'
 ]
 
+system = host_machine.system()
+
+compile_args = []
+if system in ['linux', 'android']
+  compile_args += [
+    '-D_GNU_SOURCE',
+  ]
+endif
+
 gstudp = library('gstudp',
   udp_sources,
-  c_args : gst_plugins_good_args,
+  c_args : gst_plugins_good_args + compile_args,
   include_directories : [configinc, libsinc],
   dependencies : [gst_dep, gstbase_dep, gstnet_dep, gio_dep],
   install : true,

subprojects/gst-plugins-good/meson.build

@@ -2,7 +2,8 @@ project('gst-plugins-good', 'c',
   version : '1.25.0.1',
   meson_version : '>= 1.1',
   default_options : [ 'warning_level=1',
-                      'buildtype=debugoptimized' ])
+                      'buildtype=debugoptimized',
+                      'c_std=c99' ])
 
 gst_version = meson.project_version()
 version_arr = gst_version.split('.')

subprojects/gst-plugins-good/sys/v4l2/meson.build

@@ -62,7 +62,7 @@ if have_v4l2
 
   gstv4l2 = library('gstvideo4linux2',
     v4l2_sources,
-    c_args : gst_plugins_good_args,
+    c_args : gst_plugins_good_args + ['-D_GNU_SOURCE'],
     include_directories : [configinc, libsinc],
     dependencies : [gstbase_dep, gstvideo_dep, gstallocators_dep, gudev_dep, libv4l2_dep],
     install : true,