package/uclibc: introduce and use BR2_PACKAGE_UCLIBC_ARCH_SUPPORTS and BR2_PACKAGE_UCLIBC_SUPPORTS

In this commit BR2_PACKAGE_UCLIBC_SUPPORTS looks redundant with
BR2_PACKAGE_UCLIBC_ARCH_SUPPORTS, but for other C libraries, like glibc,
it can be different.

To be consistent, we use the same pattern for uClibc.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/uclibc/Config.in

@@ -1,3 +1,31 @@
+config BR2_PACKAGE_UCLIBC_ARCH_SUPPORTS
+	bool
+	default y if BR2_aarch64
+	default y if BR2_aarch64_be
+	default y if BR2_arcle
+	default y if BR2_arceb
+	default y if BR2_arm
+	default y if BR2_armeb
+	default y if BR2_i386
+	default y if BR2_m68k
+	default y if BR2_microblaze
+	default y if BR2_mips
+	default y if BR2_mipsel
+	default y if BR2_mips64
+	default y if BR2_mips64el
+	default y if BR2_or1k
+	default y if BR2_powerpc
+	default y if BR2_RISCV_64
+	default y if BR2_sh4
+	default y if BR2_sh4eb
+	default y if BR2_sparc
+	default y if BR2_xtensa
+	default y if BR2_x86_64
+
+config BR2_PACKAGE_UCLIBC_SUPPORTS
+	bool
+	default y if BR2_PACKAGE_UCLIBC_ARCH_SUPPORTS
+
 if BR2_TOOLCHAIN_BUILDROOT_UCLIBC
 
 comment "uClibc Options"

toolchain/toolchain-buildroot/Config.in

@@ -27,13 +27,7 @@ choice
 
 config BR2_TOOLCHAIN_BUILDROOT_UCLIBC
 	bool "uClibc-ng"
-	depends on BR2_aarch64 || BR2_aarch64_be || BR2_arcle   || BR2_arceb  || \
-		   BR2_arm     || BR2_armeb    || \
-		   BR2_i386    || BR2_m68k   || BR2_microblaze || \
-		   BR2_mips    || BR2_mipsel || BR2_mips64 || BR2_mips64el || \
-		   BR2_or1k    || BR2_powerpc || BR2_RISCV_64 || \
-		   BR2_sh4     || BR2_sh4eb   || BR2_sparc || BR2_xtensa || \
-		   BR2_x86_64
+	depends on BR2_PACKAGE_UCLIBC_SUPPORTS
 	select BR2_TOOLCHAIN_USES_UCLIBC
 	help
 	  This option selects uClibc-ng as the C library for the