package/lttng-tools: use BR2_PACKAGE_LIBURCU_ARCH_SUPPORTS dependency

Using this newly introduced symbol lets to simplify the dependency code.

This change also adds the missing architecture dependencies on the second
comment.

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/lttng-tools/Config.in

@@ -6,7 +6,7 @@ config BR2_PACKAGE_LTTNG_TOOLS
 	select BR2_PACKAGE_UTIL_LINUX
 	select BR2_PACKAGE_UTIL_LINUX_LIBUUID
 	# liburcu only works on some architectures and requires thread support
-	depends on BR2_arm || BR2_armeb || BR2_aarch64 || BR2_i386 || BR2_powerpc || BR2_x86_64
+	depends on BR2_PACKAGE_LIBURCU_ARCH_SUPPORTS
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_58595 # lttng-tools/gcc-4.{7,8}.x bug
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_58854 # liburcu/gcc-4.8.x bug
 	depends on BR2_USE_WCHAR # util-linux
@@ -30,10 +30,11 @@ config BR2_PACKAGE_LTTNG_TOOLS
 	  http://lttng.org
 
 comment "lttng-tools needs a toolchain w/ threads, wchar"
-	depends on BR2_arm || BR2_armeb || BR2_aarch64 || BR2_i386 || BR2_powerpc || BR2_x86_64
+	depends on BR2_PACKAGE_LIBURCU_ARCH_SUPPORTS
 	depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_58595 # lttng-tools/gcc-4.{7,8}.x bug
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_58854 # liburcu/gcc-4.8.x bug
 
 comment "lttng-tools needs a toolchain not affected by GCC bug 58854 and 58595"
+	depends on BR2_PACKAGE_LIBURCU_ARCH_SUPPORTS
 	depends on BR2_TOOLCHAIN_HAS_GCC_BUG_58854 || BR2_TOOLCHAIN_HAS_GCC_BUG_58595