Make libiconv an option in the menu config

Signed-off-by: Alexey Neyman <stilor@att.net>

config/libc/uClibc.in

@@ -25,6 +25,10 @@ config LIBC_UCLIBC_HAS_SUNRPC
     bool
     default y if !UCLIBC_1_0_23_or_later
 
+config LIBC_UCLIBC_HAS_LIBICONV
+    bool
+    default y if UCLIBC_1_0_21_or_later
+
 config LIBC_UCLIBC_PARALLEL
     def_bool y
     depends on UCLIBC_0_9_33_2_or_later
@@ -154,12 +158,19 @@ config LIBC_UCLIBC_LNXTHRD
 config LIBC_UCLIBC_LOCALES
     bool
     select LIBC_UCLIBC_WCHAR
+    # Before it became a separate option, libiconv depended on locales
     prompt "Add support for locales"
     help
       Say y if you want uClibc to support localisation.
 
       Note that seems to be broken on recent uClibc releases.
 
+config LIBC_UCLIBC_LIBICONV
+    bool "Enable iconv"
+    depends on LIBC_UCLIBC_HAS_LIBICONV
+    help
+      Say y if you want to enable <iconv.h> and the corresponding interfaces.
+
 config LIBC_UCLIBC_IPV6
     bool
     prompt "Add support for IPv6"

packages/uClibc/package.desc

@@ -4,5 +4,5 @@ preferred='uClibc-ng'
 origin='uclibc.org'
 repository='git git://git.busybox.net/uClibc'
 mirrors='http://www.uclibc.org/downloads http://www.uclibc.org/downloads/old-releases'
-milestones='0.9.33.2 1.0.0 1.0.15 1.0.23'
+milestones='0.9.33.2 1.0.0 1.0.15 1.0.21 1.0.23'
 archive_formats='.tar.xz .tar.bz2'

scripts/build/libc/uClibc.sh

@@ -314,6 +314,13 @@ manage_uClibc_config() {
         CT_KconfigDisableOption "UCLIBC_HAS_IPV6" "${dst}"
     fi
 
+    # Iconv support
+    if [ "${CT_LIBC_UCLIBC_LIBICONV}" = "y" ]; then
+        CT_KconfigEnableOption "UCLIBC_HAS_LIBICONV" "${dst}"
+    else
+        CT_KconfigDisableOption "UCLIBC_HAS_LIBICONV" "${dst}"
+    fi
+
     # Force on options needed for C++ if we'll be making a C++ compiler.
     # I'm not sure locales are a requirement for doing C++... Are they?
     if [ "${CT_CC_LANG_CXX}" = "y" ]; then