diff --git a/Makefile b/Makefile
index fe9bde729..955e68482 100644
--- a/Makefile
+++ b/Makefile
@@ -346,7 +346,7 @@ ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
 TARGETS+=target-purgelocales
 endif
 
-ifneq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_TOOLCHAIN_CTNG_eglibc)$(BR2_TOOLCHAIN_CTNG_glibc),)
+ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
 ifneq ($(GENERATE_LOCALE),)
 TARGETS+=target-generatelocales
 endif
diff --git a/package/Makefile.in b/package/Makefile.in
index 6835de396..405b3e437 100644
--- a/package/Makefile.in
+++ b/package/Makefile.in
@@ -23,7 +23,7 @@ MAKE:=$(HOSTMAKE) -j$(PARALLEL_JOBS)
 # Compute GNU_TARGET_NAME
 GNU_TARGET_NAME=$(ARCH)-buildroot-linux-$(LIBC)$(ABI)
 
-ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_CTNG_uClibc)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y)
+ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
 LIBC=uclibc
 else
 LIBC=gnu
diff --git a/package/boost/boost.mk b/package/boost/boost.mk
index ce729901a..160a9f1fe 100644
--- a/package/boost/boost.mk
+++ b/package/boost/boost.mk
@@ -59,7 +59,7 @@ BOOST_OPT += toolset=gcc \
 	     runtime-link=$(if $(BR2_PREFER_STATIC_LIB),static,shared)
 
 ifeq ($(BR2_PACKAGE_BOOST_LOCALE),y)
-ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),y)
+ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
 # posix backend needs monetary.h which isn't available on uClibc
 BOOST_OPT += boost.locale.posix=off
 endif
diff --git a/package/elfutils/Config.in b/package/elfutils/Config.in
index 914eec6e5..c6a2b8485 100644
--- a/package/elfutils/Config.in
+++ b/package/elfutils/Config.in
@@ -3,10 +3,7 @@ comment "elfutils requires a toolchain with LARGEFILE and WCHAR support"
 
 config BR2_PACKAGE_ELFUTILS
 	bool "elfutils"
-	select BR2_PACKAGE_ARGP_STANDALONE if \
-	       BR2_TOOLCHAIN_BUILDROOT   || \
-	       BR2_TOOLCHAIN_CTNG_uClibc || \
-	       BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+	select BR2_PACKAGE_ARGP_STANDALONE if BR2_TOOLCHAIN_USES_UCLIBC
 	select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT
 	depends on BR2_LARGEFILE
 	depends on BR2_USE_WCHAR
@@ -23,9 +20,7 @@ if BR2_PACKAGE_ELFUTILS
 
 config BR2_PACKAGE_ELFUTILS_PROGS
 	bool "Install programs"
-	depends on BR2_TOOLCHAIN_EXTERNAL_GLIBC || \
-		   BR2_TOOLCHAIN_CTNG_glibc     || \
-		   BR2_TOOLCHAIN_CTNG_eglibc
+	depends on BR2_TOOLCHAIN_USES_GLIBC
 	help
 	  This option tells elfutils to not only install the libelf
 	  libraries, but also the elfutils programs.
diff --git a/package/elfutils/elfutils.mk b/package/elfutils/elfutils.mk
index 265878660..696b5667a 100644
--- a/package/elfutils/elfutils.mk
+++ b/package/elfutils/elfutils.mk
@@ -37,7 +37,7 @@ endif
 ELFUTILS_CONF_ENV += \
 	LDFLAGS="$(ELFUTILS_LDFLAGS)"
 
-ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),y)
+ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
  ELFUTILS_DEPENDENCIES += argp-standalone
 endif
 
diff --git a/package/freescale-imx/gpu-viv-bin-mx6q/Config.in b/package/freescale-imx/gpu-viv-bin-mx6q/Config.in
index 06544c406..e80eae434 100644
--- a/package/freescale-imx/gpu-viv-bin-mx6q/Config.in
+++ b/package/freescale-imx/gpu-viv-bin-mx6q/Config.in
@@ -1,7 +1,5 @@
 comment "gpu-viv-bin-mx6q requires a glibc toolchain"
-	depends on !(BR2_TOOLCHAIN_CTNG_glibc || \
-		BR2_TOOLCHAIN_CTNG_eglibc || \
-		BR2_TOOLCHAIN_EXTERNAL_GLIBC)
+	depends on !BR2_TOOLCHAIN_USES_GLIBC
 
 config BR2_PACKAGE_GPU_VIV_BIN_MX6Q
 	bool "gpu-viv-bin-mx6q"
@@ -9,9 +7,7 @@ config BR2_PACKAGE_GPU_VIV_BIN_MX6Q
 	select BR2_PACKAGE_HAS_OPENGL_ES
 	depends on BR2_arm # Only relevant for i.MX6
 	 # Library binaries are linked against libc.so.6
-	depends on BR2_TOOLCHAIN_CTNG_glibc || \
-		BR2_TOOLCHAIN_CTNG_eglibc || \
-		BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	depends on BR2_TOOLCHAIN_USES_GLIBC
 	help
 	  Userspace libraries for Vivante GPU on i.MX6 platforms
 
diff --git a/package/gpsd/Config.in b/package/gpsd/Config.in
index 337f8e731..70c8cbf25 100644
--- a/package/gpsd/Config.in
+++ b/package/gpsd/Config.in
@@ -32,10 +32,10 @@ config BR2_PACKAGE_GPSD_OLDSTYLE
 
 config BR2_PACKAGE_GPSD_PROFILING
 	bool "profiling support"
-	depends on !BR2_TOOLCHAIN_BUILDROOT && !BR2_TOOLCHAIN_CTNG_uClibc && !BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+	depends on BR2_TOOLCHAIN_USES_GLIBC
 
 comment "profiling support not available with uClibc-based toolchain"
-	depends on BR2_TOOLCHAIN_BUILDROOT || BR2_TOOLCHAIN_CTNG_uClibc || BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+	depends on !BR2_TOOLCHAIN_USES_GLIBC
 
 config BR2_PACKAGE_GPSD_NTP_SHM
 	bool "NTP time hinting support"
diff --git a/package/gsl/gsl.mk b/package/gsl/gsl.mk
index 68b9948cc..c32a0ebfa 100644
--- a/package/gsl/gsl.mk
+++ b/package/gsl/gsl.mk
@@ -17,7 +17,7 @@ GSL_CONFIG_SCRIPTS = gsl-config
 # at: http://lists.busybox.net/pipermail/uclibc/2012-October/047067.html.
 # So we tell gsl that fenv related functions are not available in this
 # case.
-ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),y)
+ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
 ifneq ($(BR2_i386),y)
 GSL_CONF_ENV = \
        ac_cv_have_decl_feenableexcept=no \
diff --git a/package/iozone/iozone.mk b/package/iozone/iozone.mk
index 970e50982..328a5269d 100644
--- a/package/iozone/iozone.mk
+++ b/package/iozone/iozone.mk
@@ -15,7 +15,7 @@ IOZONE_LICENSE = IOzone license (NO DERIVED WORKS ALLOWED)
 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),)
 IOZONE_TARGET = linux-noth
 # AIO support not available on uClibc, use the linux (non-aio) target.
-else ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),y)
+else ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
 IOZONE_TARGET = linux-noaio
 else
 IOZONE_TARGET = linux
diff --git a/package/libv4l/Config.in b/package/libv4l/Config.in
index 70f20ac56..de4af302b 100644
--- a/package/libv4l/Config.in
+++ b/package/libv4l/Config.in
@@ -13,21 +13,21 @@ if BR2_PACKAGE_LIBV4L
 
 config BR2_PACKAGE_LIBV4L_DECODE_TM6000
 	bool "decode_tm6000"
-	depends on BR2_TOOLCHAIN_EXTERNAL_GLIBC || BR2_TOOLCHAIN_CTNG_glibc || BR2_TOOLCHAIN_CTNG_eglibc
+	depends on BR2_TOOLCHAIN_USES_GLIBC
 	help
 	  Tool to decode tm6000 proprietary format streams
 
 comment "decode_tm6000 requires a GLIBC based toolchain"
-	depends on !(BR2_TOOLCHAIN_EXTERNAL_GLIBC || BR2_TOOLCHAIN_CTNG_glibc || BR2_TOOLCHAIN_CTNG_eglibc)
+	depends on !BR2_TOOLCHAIN_USES_GLIBC
 
 config BR2_PACKAGE_LIBV4L_IR_KEYTABLE
 	bool "ir-keytable"
-	depends on BR2_TOOLCHAIN_EXTERNAL_GLIBC || BR2_TOOLCHAIN_CTNG_glibc || BR2_TOOLCHAIN_CTNG_eglibc
+	depends on BR2_TOOLCHAIN_USES_GLIBC
 	help
 	  Tool to alter keymaps of Remote Controller devices
 
 comment "ir-keytable requires a GLIBC based toolchain"
-	depends on !(BR2_TOOLCHAIN_EXTERNAL_GLIBC || BR2_TOOLCHAIN_CTNG_glibc || BR2_TOOLCHAIN_CTNG_eglibc)
+	depends on !BR2_TOOLCHAIN_USES_GLIBC
 
 config BR2_PACKAGE_LIBV4L_V4L2_COMPLIANCE
 	bool "v4l2-compliance"
diff --git a/package/ltp-testsuite/Config.in b/package/ltp-testsuite/Config.in
index 46e7380d8..75b029ffc 100644
--- a/package/ltp-testsuite/Config.in
+++ b/package/ltp-testsuite/Config.in
@@ -1,6 +1,6 @@
 comment "ltp-testsuite needs specific uClibc options, see help"
 	depends on BR2_PACKAGE_LTP_TESTSUITE
-	depends on BR2_TOOLCHAIN_BUILDROOT || BR2_TOOLCHAIN_EXTERNAL_UCLIBC || BR2_TOOLCHAIN_CTNG_uClibc
+	depends on BR2_TOOLCHAIN_USES_UCLIBC
 
 config BR2_PACKAGE_LTP_TESTSUITE
 	bool "ltp-testsuite"
diff --git a/package/mongrel2/Config.in b/package/mongrel2/Config.in
index cd9323639..ca7e6093d 100644
--- a/package/mongrel2/Config.in
+++ b/package/mongrel2/Config.in
@@ -9,9 +9,7 @@ config BR2_PACKAGE_MONGREL2
 	# {get,make,swap}context functions present in
 	# {e,}glibc and in uClibc's master branch. Source has arm workaround
 	depends on BR2_UCLIBC_VERSION_SNAPSHOT || \
-		BR2_TOOLCHAIN_EXTERNAL_GLIBC || \
-		BR2_TOOLCHAIN_CTNG_eglibc || \
-		BR2_TOOLCHAIN_CTNG_glibc || \
+		BR2_TOOLCHAIN_USES_GLIBC || \
 		BR2_arm
 	help
 	  Mongrel2 is an application, language, and network architecture
diff --git a/package/multimedia/gst-plugin-x170/Config.in b/package/multimedia/gst-plugin-x170/Config.in
index fd9394760..9a1ae639c 100644
--- a/package/multimedia/gst-plugin-x170/Config.in
+++ b/package/multimedia/gst-plugin-x170/Config.in
@@ -2,9 +2,7 @@ config BR2_PACKAGE_GST_PLUGIN_X170
 	bool "gst-plugin-x170"
 	depends on BR2_PACKAGE_GSTREAMER
 	depends on BR2_arm926t
-	depends on (BR2_TOOLCHAIN_EXTERNAL_GLIBC || \
-		BR2_TOOLCHAIN_CTNG_eglibc || \
-		BR2_TOOLCHAIN_CTNG_glibc) # on2-8170-libs
+	depends on BR2_TOOLCHAIN_USES_GLIBC # on2-8170-libs
 	select BR2_PACKAGE_ON2_8170_LIBS
 	help
 	  GStreamer plug-in to use the Hantro X170 video decoder present on
diff --git a/package/multimedia/on2-8170-libs/Config.in b/package/multimedia/on2-8170-libs/Config.in
index 0cf05add9..8c2d96381 100644
--- a/package/multimedia/on2-8170-libs/Config.in
+++ b/package/multimedia/on2-8170-libs/Config.in
@@ -1,9 +1,7 @@
 config BR2_PACKAGE_ON2_8170_LIBS
 	#This is a binary only package which has been compiled for glibc
 	depends on BR2_arm926t
-	depends on (BR2_TOOLCHAIN_EXTERNAL_GLIBC || \
-		BR2_TOOLCHAIN_CTNG_eglibc || \
-		BR2_TOOLCHAIN_CTNG_glibc)
+	depends on BR2_TOOLCHAIN_USES_GLIBC
 	depends on BR2_LINUX_KERNEL # on2-8170-modules
 	select BR2_PACKAGE_ON2_8170_MODULES # runtime
 	bool "on2-8170-libs"
diff --git a/package/nbd/nbd.mk b/package/nbd/nbd.mk
index e790a345b..e5b50232f 100644
--- a/package/nbd/nbd.mk
+++ b/package/nbd/nbd.mk
@@ -11,7 +11,7 @@ NBD_CONF_OPT = $(if $(BR2_LARGEFILE),--enable-lfs,--disable-lfs)
 NBD_DEPENDENCIES = libglib2
 NBD_LICENSE = GPLv2
 
-ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),y)
+ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
 # We have linux/falloc.h
 # but uClibc lacks fallocate(2) which is a glibc-ism
 NBD_CONF_ENV = ac_cv_header_linux_falloc_h=no
diff --git a/package/network-manager/network-manager.mk b/package/network-manager/network-manager.mk
index 9c143aae1..b4d34088d 100644
--- a/package/network-manager/network-manager.mk
+++ b/package/network-manager/network-manager.mk
@@ -35,7 +35,7 @@ NETWORK_MANAGER_CONF_OPT = \
 		--disable-ifnet
 
 # uClibc by default doesn't have backtrace support, so don't use it
-ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),y)
+ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
 NETWORK_MANAGER_CONF_OPT += --disable-crashtrace
 endif
 
diff --git a/package/nss-mdns/Config.in b/package/nss-mdns/Config.in
index 1df0ce4b3..b537fa576 100644
--- a/package/nss-mdns/Config.in
+++ b/package/nss-mdns/Config.in
@@ -2,7 +2,7 @@ config BR2_PACKAGE_NSS_MDNS
 	bool "nss-mdns"
 	# libdaemon->avahi uses fork()
 	depends on BR2_USE_MMU
-	depends on BR2_TOOLCHAIN_EXTERNAL_GLIBC || BR2_TOOLCHAIN_CTNG_eglibc || BR2_TOOLCHAIN_CTNG_glibc
+	depends on BR2_TOOLCHAIN_USES_GLIBC
 	depends on BR2_PACKAGE_AVAHI_DAEMON
 	help
 	  nss-mdns is a plugin for the GNU Name Service Switch (NSS)
diff --git a/package/php/php.mk b/package/php/php.mk
index 07f396eed..299395f9f 100644
--- a/package/php/php.mk
+++ b/package/php/php.mk
@@ -24,7 +24,7 @@ PHP_CONFIG_SCRIPTS = php-config
 PHP_CFLAGS = $(TARGET_CFLAGS)
 
 # Workaround for non-IPv6 uClibc toolchain
-ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),y)
+ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
 ifneq ($(BR2_INET_IPV6),y)
 	PHP_CFLAGS += -DHAVE_DEPRECATED_DNS_FUNCS
 endif
diff --git a/package/squid/squid.mk b/package/squid/squid.mk
index 4dd14042e..e3daa3200 100644
--- a/package/squid/squid.mk
+++ b/package/squid/squid.mk
@@ -26,7 +26,7 @@ SQUID_CONF_OPT =	--enable-async-io=8 --enable-linux-netfilter \
 			--enable-external-acl-helpers="ip_user"
 
 # On uClibc librt needs libpthread
-ifeq ($(BR2_TOOLCHAIN_HAS_THREADS)$(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),yy)
+ifeq ($(BR2_TOOLCHAIN_HAS_THREADS)$(BR2_TOOLCHAIN_USES_UCLIBC),yy)
 	SQUID_CONF_ENV += ac_cv_search_shm_open="-lrt -lpthread"
 endif
 
diff --git a/package/tzdata/Config.in b/package/tzdata/Config.in
index 4e68a97b5..dec5f86c2 100644
--- a/package/tzdata/Config.in
+++ b/package/tzdata/Config.in
@@ -1,6 +1,6 @@
 config BR2_PACKAGE_TZDATA
 	bool "tzdata"
-	depends on BR2_TOOLCHAIN_EXTERNAL_GLIBC || BR2_TOOLCHAIN_CTNG_eglibc || BR2_TOOLCHAIN_CTNG_glibc
+	depends on BR2_TOOLCHAIN_USES_GLIBC
 	help
 	  Time zone database
 
diff --git a/toolchain/Config.in b/toolchain/Config.in
index 665618c7b..448bccc79 100644
--- a/toolchain/Config.in
+++ b/toolchain/Config.in
@@ -1,4 +1,19 @@
 menu "Toolchain"
+
+# Should be selected for glibc or eglibc
+config BR2_TOOLCHAIN_USES_GLIBC
+	bool
+	select BR2_LARGEFILE
+	select BR2_INET_IPV6
+	select BR2_USE_WCHAR
+	select BR2_ENABLE_LOCALE
+	select BR2_TOOLCHAIN_HAS_THREADS
+	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
+	select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
+
+config BR2_TOOLCHAIN_USES_UCLIBC
+	bool
+
 choice
 	prompt "Toolchain type"
 	help
@@ -12,6 +27,7 @@ config BR2_TOOLCHAIN_BUILDROOT
 	bool "Buildroot toolchain"
 	depends on !BR2_microblaze && !BR2_aarch64
 	select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
+	select BR2_TOOLCHAIN_USES_UCLIBC
 
 config BR2_TOOLCHAIN_EXTERNAL
 	bool "External toolchain"
diff --git a/toolchain/toolchain-common.in b/toolchain/toolchain-common.in
index 208ccac86..7c9b842cc 100644
--- a/toolchain/toolchain-common.in
+++ b/toolchain/toolchain-common.in
@@ -62,9 +62,7 @@ config BR2_GENERATE_LOCALE
 	# build time.
 	depends on \
 		BR2_TOOLCHAIN_BUILDROOT      || \
-		BR2_TOOLCHAIN_EXTERNAL_GLIBC || \
-		BR2_TOOLCHAIN_CTNG_eglibc    || \
-		BR2_TOOLCHAIN_CTNG_glibc
+		BR2_TOOLCHAIN_USES_GLIBC
 	help
 	  Generate support for a list of locales. Locales can be
 	  specified with or without encoding, when no encoding is
@@ -79,9 +77,7 @@ config BR2_GENERATE_LOCALE
 
 config BR2_NEEDS_GETTEXT
 	bool
-	default y if BR2_TOOLCHAIN_BUILDROOT
-	default y if BR2_TOOLCHAIN_EXTERNAL_UCLIBC
-	default y if BR2_TOOLCHAIN_CTNG_uClibc
+	default y if BR2_TOOLCHAIN_USES_UCLIBC
 
 config BR2_NEEDS_GETTEXT_IF_LOCALE
 	bool
diff --git a/toolchain/toolchain-crosstool-ng/Config.in b/toolchain/toolchain-crosstool-ng/Config.in
index 93c12e9c9..7cfd8c27b 100644
--- a/toolchain/toolchain-crosstool-ng/Config.in
+++ b/toolchain/toolchain-crosstool-ng/Config.in
@@ -7,27 +7,22 @@ choice
 
 config BR2_TOOLCHAIN_CTNG_uClibc
 	bool "uClibc"
+	select BR2_TOOLCHAIN_USES_UCLIBC
 
 # Although eglibc can be configured to opt-out some features,
 # let's not deal with that for the time being, it's complex...
 config BR2_TOOLCHAIN_CTNG_eglibc
 	bool "eglibc"
-	select BR2_LARGEFILE
-	select BR2_INET_IPV6
 	# Our default ct-ng configuration uses eglibc 2.12, which has
 	# native RPC support
 	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_ENABLE_LOCALE
-	select BR2_USE_WCHAR
+	select BR2_TOOLCHAIN_USES_GLIBC
 
 config BR2_TOOLCHAIN_CTNG_glibc
 	bool "glibc"
-	select BR2_LARGEFILE
-	select BR2_INET_IPV6
 	# Our default ct-ng configuration uses glibc 2.14.1, which
 	# does not have native RPC support
-	select BR2_ENABLE_LOCALE
-	select BR2_USE_WCHAR
+	select BR2_TOOLCHAIN_USES_GLIBC
 
 endchoice # C library
 
diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index 2c1c99b78..946063f95 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -815,16 +815,11 @@ config BR2_TOOLCHAIN_EXTERNAL_PREFIX
 
 config BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	bool
-	select BR2_LARGEFILE
-	select BR2_INET_IPV6
-	select BR2_USE_WCHAR
-	select BR2_ENABLE_LOCALE
-	select BR2_TOOLCHAIN_HAS_THREADS
-	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
-	select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
+	select BR2_TOOLCHAIN_USES_GLIBC
 
 config BR2_TOOLCHAIN_EXTERNAL_UCLIBC
 	bool
+	select BR2_TOOLCHAIN_USES_UCLIBC
 
 if BR2_TOOLCHAIN_EXTERNAL_CUSTOM