[Buildroot] [PATCH 4 of 6 v2] uclibc: only add targets if uclibc is enabled

[Thomas De Schampheleire <patrickdepinguin@gmail.com>]

In analogy of linux.mk, only enable its targets (in particular the kconfig
targets (menuconfig, update-config, ...) when the uclibc package is actually
enabled.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>

---
v2: rebase after making kconfig-package a full infra

Note: now that kconfig-package is a full package infra (inheriting from
generic-package) this may seem a bit odd, as other packages do not do this.
Nevertheless, it does not hurt and will slightly improve the parsing of the
Makefiles when the package is not selected.

 package/uclibc/uclibc.mk |  2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff -r 083076145a2b -r 540167f28c2d package/uclibc/uclibc.mk
--- a/package/uclibc/uclibc.mk	Tue Jul 22 20:35:36 2014 +0200
+++ b/package/uclibc/uclibc.mk	Wed Jul 23 20:12:32 2014 +0200
@@ -539,7 +539,9 @@
 	$(UCLIBC_INSTALL_UTILS_STAGING)
 endef
 
+ifeq ($(BR2_TOOLCHAIN_BUILDROOT_UCLIBC),y)
 $(eval $(kconfig-package))
+endif
 
 # Before uClibc is built, we must have the second stage cross-compiler
 $(UCLIBC_TARGET_BUILD): | host-gcc-intermediate