package/live555: bump version to 2025.10.13

Added -std=c++20 to enable std::atomic_flag::test which was introduced
in gcc 11.1:
https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.2020
(see P1135R6)

For older compilers -DNO_STD_LIB=1 can be used to enable a code path
without std::atomic_flag::test, copied from:
https://github.com/DragonFlyBSD/DeltaPorts/commit/cfc388e6a6bf011e28f0cbebaeae74d2bb516a02

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/live555/live555.hash

@@ -1,5 +1,5 @@
-# From http://www.live555.com/liveMedia/public/live555-latest-md5.txt
-md5  3c1992b0e9b871bcad7491a3da541781  live.2021.05.03.tar.gz
+# From http://www.live555.com/liveMedia/public/live555-latest-sha1.txt
+sha1  483146b15c5fdb973b88fc318f2772f022253563  live.2025.10.13.tar.gz
 # Locally generated
-sha256  ae73241f9cc4ab740d60737c0438d62a7635af3822de5d84acf275793de42029  live.2021.05.03.tar.gz
+sha256  44eb6ae4ae02ef68a5028d9fc8b70c45b9ba45c058f846b68bc4d32c74355f49  live.2025.10.13.tar.gz
 sha256  da7eabb7bafdf7d3ae5e9f223aa5bdc1eece45ac569dc21b3b037520b4464768  COPYING.LESSER

package/live555/live555.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIVE555_VERSION = 2021.05.03
+LIVE555_VERSION = 2025.10.13
 LIVE555_SOURCE = live.$(LIVE555_VERSION).tar.gz
 # upstream site removes older versions, use videolan.org instead
 LIVE555_SITE = https://download.videolan.org/contrib/live555
@@ -29,6 +29,13 @@ LIVE555_LIBRARY_LINK = $(TARGET_CC) -o
 LIVE555_CFLAGS += -fPIC
 endif
 
+# "struct std::atomic_flag" has no member named "test"
+ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_11),y)
+LIVE555_CFLAGS += -std=c++20
+else
+LIVE555_CFLAGS += -DNO_STD_LIB=1
+endif
+
 ifeq ($(BR2_PACKAGE_OPENSSL),y)
 LIVE555_DEPENDENCIES += host-pkgconf openssl
 LIVE555_CONSOLE_LIBS = `$(PKG_CONFIG_HOST_BINARY) --libs openssl`