beecrypt: only build C++ support if dependencies are available

Instead of automatically pulling in the (big) icu library if the toolchain
dependencies are available.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/beecrypt/Config.in

@@ -1,8 +1,6 @@
 config BR2_PACKAGE_BEECRYPT
 	bool "beecrypt"
 	depends on BR2_TOOLCHAIN_HAS_THREADS
-	select BR2_PACKAGE_ICU if BR2_INSTALL_LIBSTDCPP && BR2_USE_WCHAR && \
-	       !BR2_arc && !BR2_BINFMT_FLAT
 	help
 	  Beecrypt is a general-purpose cryptography library.
 
@@ -10,8 +8,3 @@ config BR2_PACKAGE_BEECRYPT
 
 comment "beecrypt needs a toolchain w/ threads"
 	depends on !BR2_TOOLCHAIN_HAS_THREADS
-
-comment "beecrypt C++ support needs a toolchain w/ wchar"
-	depends on !BR2_arc
-	depends on !BR2_BINFMT_FLAT
-	depends on BR2_INSTALL_LIBSTDCPP && !BR2_USE_WCHAR && BR2_TOOLCHAIN_HAS_THREADS

package/beecrypt/beecrypt.mk

@@ -22,7 +22,7 @@ BEECRYPT_CONF_OPT = \
 		--without-python \
 		--disable-openmp
 
-ifeq ($(BR2_PACKAGE_ICU),y)
+ifeq ($(BR2_INSTALL_LIBSTDCPP)$(BR2_USE_WCHAR)$(BR2_PACKAGE_ICU),yyy)
 # C++ support needs icu
 BEECRYPT_DEPENDENCIES += icu
 else