[Buildroot] [PATCH v2 1/3] package/libdvdcss: needs gcc >= 8

[Bernd Kuhls <bernd@kuhls.net>]

Buildroot commit cd3a2f0ff35346ad5fd6a9867113260addccf127 switched the
build system to meson which depends on c17:
https://code.videolan.org/videolan/libdvdcss/-/commit/9f16597859120b96006415c084039f63efc84b83#line_0cc1139e3_A5

Add the necessary dependency and propagate to reverse dependencies to
fix a build error caught by the Gitlab pipelines:

br-test-pkg/bootlin-aarch64-glibc-old/build/libdvdcss-1.5.0/meson.build:1:0:
 ERROR: None of values ['c17'] are supported by the C compiler. Possible
 values for option "c_std" are ['none', 'c89', 'c99', 'c11', 'gnu89',
 'gnu99', 'gnu11']

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
---
v2: no changes

Gitlab pipelines passed:
https://gitlab.com/bkuhls/buildroot/-/commits/b4f4db5ed78a4121de247715bfb0c4c7d1ca5808

 package/dvdauthor/Config.in                    | 4 ++++
 package/gstreamer1/gst1-plugins-ugly/Config.in | 4 ++++
 package/libdvdcss/Config.in                    | 4 ++++
 package/libdvdnav/Config.in                    | 6 ++++--
 package/libdvdread/Config.in                   | 4 ++++
 5 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/package/dvdauthor/Config.in b/package/dvdauthor/Config.in
index 9ba5411d6b..23477e91e0 100644
--- a/package/dvdauthor/Config.in
+++ b/package/dvdauthor/Config.in
@@ -17,9 +17,13 @@ if BR2_PACKAGE_DVDAUTHOR
 
 config BR2_PACKAGE_DVDAUTHOR_DVDUNAUTHOR
 	bool "dvdunauthor"
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_8 # libdvdcss -> libdvdread
 	select BR2_PACKAGE_LIBDVDREAD
 	help
 	  This option enables the dvdunauthor program, which requires
 	  libdvdread.
 
+comment "dvdunauthor needs a toolchain w/ gcc >= 8"
+	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_8
+
 endif
diff --git a/package/gstreamer1/gst1-plugins-ugly/Config.in b/package/gstreamer1/gst1-plugins-ugly/Config.in
index 54766ffa8c..aff495c1ac 100644
--- a/package/gstreamer1/gst1-plugins-ugly/Config.in
+++ b/package/gstreamer1/gst1-plugins-ugly/Config.in
@@ -35,10 +35,14 @@ comment "plugins with external dependencies (there may be more available)"
 
 config BR2_PACKAGE_GST1_PLUGINS_UGLY_PLUGIN_DVDREAD
 	bool "dvdread"
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_8 # libdvdcss -> libdvdread
 	select BR2_PACKAGE_LIBDVDREAD
 	help
 	  Access a DVD with dvdread
 
+comment "dvdread needs a toolchain w/ gcc >= 8"
+	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_8
+
 config BR2_PACKAGE_GST1_PLUGINS_UGLY_PLUGIN_MPEG2DEC
 	bool "mpeg2dec"
 	select BR2_PACKAGE_LIBMPEG2
diff --git a/package/libdvdcss/Config.in b/package/libdvdcss/Config.in
index a8c3b84cf5..8e6f6ea984 100644
--- a/package/libdvdcss/Config.in
+++ b/package/libdvdcss/Config.in
@@ -1,7 +1,11 @@
 config BR2_PACKAGE_LIBDVDCSS
 	bool "libdvdcss"
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_8 # std=c17
 	help
 	  libdvdcss is a simple library designed for accessing DVDs like
 	  a block device without having to bother about the decryption.
 
 	  http://www.videolan.org/developers/libdvdcss.html
+
+comment "libdvdcss needs a toolchain w/ gcc >= 8"
+	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_8
diff --git a/package/libdvdnav/Config.in b/package/libdvdnav/Config.in
index 77cba5f135..8276e466db 100644
--- a/package/libdvdnav/Config.in
+++ b/package/libdvdnav/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_LIBDVDNAV
 	bool "libdvdnav"
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_8 # libdvdcss -> libdvdread
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_PACKAGE_LIBDVDREAD
 	help
@@ -9,5 +10,6 @@ config BR2_PACKAGE_LIBDVDNAV
 
 	  https://www.videolan.org/developers/libdvdnav.html
 
-comment "libdvdnav needs a toolchain w/ threads"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS
+comment "libdvdnav needs a toolchain w/ threads, gcc >= 8"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_8
diff --git a/package/libdvdread/Config.in b/package/libdvdread/Config.in
index 3579054158..efa86a4e38 100644
--- a/package/libdvdread/Config.in
+++ b/package/libdvdread/Config.in
@@ -1,8 +1,12 @@
 config BR2_PACKAGE_LIBDVDREAD
 	bool "libdvdread"
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_8 # libdvdcss
 	select BR2_PACKAGE_LIBDVDCSS
 	help
 	  libdvdread provides a simple foundation for reading
 	  DVD-Video images.
 
 	  https://www.videolan.org/developers/libdvdnav.html
+
+comment "libdvdread needs a toolchain w/ gcc >= 8"
+	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_8
-- 
2.47.3

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