package/unrar: bump to version 6.2.6

Uptream does not provide a change log.

The package now needs a C++11 compiler. For example, the source file
"blake2s.hpp" is using the "constexpr" keyword.

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/unrar/Config.in

@@ -1,6 +1,7 @@
 config BR2_PACKAGE_UNRAR
 	bool "unrar"
 	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 # C++11
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	depends on BR2_USE_WCHAR
 	help
@@ -8,6 +9,7 @@ config BR2_PACKAGE_UNRAR
 
 	  http://www.rarlab.com/rar_add.htm
 
-comment "unrar needs a toolchain w/ C++, wchar, threads"
+comment "unrar needs a toolchain w/ C++, wchar, threads, gcc >= 4.8"
 	depends on !BR2_USE_WCHAR || !BR2_INSTALL_LIBSTDCPP \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 \
 		|| !BR2_TOOLCHAIN_HAS_THREADS

package/unrar/unrar.hash

@@ -1,3 +1,3 @@
 # Locally computed:
-sha256  de75b6136958173fdfc530d38a0145b72342cf0d3842bf7bb120d336602d88ed  unrarsrc-6.1.7.tar.gz
+sha256  0c2d4cbc8b34d0e3bec7b474e0f52bbcc6c4320ec089b4141223ee355f63c318  unrarsrc-6.2.6.tar.gz
 sha256  6ecc1687808b7d66b24f874755abfed7464d9751ed0001cd4e8e5d9bf397ff8a  license.txt

package/unrar/unrar.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-UNRAR_VERSION = 6.1.7
+UNRAR_VERSION = 6.2.6
 UNRAR_SOURCE = unrarsrc-$(UNRAR_VERSION).tar.gz
 UNRAR_SITE = https://www.rarlab.com/rar
 UNRAR_LICENSE = unrar
@@ -13,7 +13,7 @@ UNRAR_CPE_ID_VENDOR = rarlab
 
 define UNRAR_BUILD_CMDS
 	$(TARGET_MAKE_ENV) $(MAKE) CXX="$(TARGET_CXX)" STRIP="/bin/true" \
-		CXXFLAGS="$(TARGET_CXXFLAGS) -pthread" \
+		CXXFLAGS="$(TARGET_CXXFLAGS) -pthread -std=c++11" \
 		LDFLAGS="$(TARGET_LDFLAGS) -pthread" -C $(@D)
 endef