toolchain/crosstool-NG: use wide-char option

Push the wide-char options down to crosstool-NG config

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

toolchain/toolchain-crosstool-ng/crosstool-ng.mk

@@ -223,6 +223,13 @@ CTNG_FIX_DOT_CONFIG_PATHS_SED += s:^(CT_SYSROOT_DIR_PREFIX)=.*:\1="":;
 # uClibc specific options
 ifeq ($(BR2_TOOLCHAIN_CTNG_uClibc),y)
 
+# Handle the wide-char option
+ifneq ($(call qstrip,$(BR2_USE_WCHAR)),)
+CTNG_FIX_DOT_CONFIG_SED += s:^\# (CT_LIBC_UCLIBC_WCHAR) is not set:\1=y:;
+else
+CTNG_FIX_DOT_CONFIG_SED += s:^(CT_LIBC_UCLIBC_WCHAR)=.*:\# \1 is not set:;
+endif
+
 # Instruct CT-NG's .config where to find the uClibc's .config
 CTNG_FIX_DOT_CONFIG_PATHS_SED += s:^(CT_LIBC_UCLIBC_CONFIG_FILE)=.*:\1="$(CTNG_DIR)/libc.config":;