Exclude libiconv and dictutil unicode at compile time for iOs/Android targets

Put libiconv under a build-time flag to optionally replace library with mock implementation

Цель:
 - выпилить libiconv в мобильных билдах

Что проверено:
- клавиатура
- мобильный переводчик: проверено с помощью ```$ARCADIA/dict/mt/make/tools/eval_nmt/eval_nmt --mobile <direction>``` с флагами компиляции, отключающими libiconv/dictutil.
Проверены направления:
- en-ru/ru-en
- en-tr/tr-en
- en-da/da-en
- en-el/el-en
- en-lt/lt-en
- en-uk/uk-en
- en-it/it-en
- en-pt/pt-en
- en-sk/sk-en
- en-sv/sv-en
- en-lv/lv-en
- en-es/es-en
- en-nl/nl-en
- en-fi/fi-en
- en-de/de-en
- en-cs/cs-en
- en-no/no-en
- en-fr/fr-en
###########
- en-ar/ar-en
- en-he/he-en
- en-ja
- en-th
- en-zh/zh-en

Результаты совпадают с https://wiki.yandex-team.ru/users/dimdi-y/mobilnye-modeli/

Что еще затронуто:
- все проекты  под iOs/Android

5 files changed, 17 insertions, 6 deletions

diff --git a/library/cpp/charset/CMakeLists.darwin-x86_64.txt b/library/cpp/charset/CMakeLists.darwin-x86_64.txt
index 04a8e24de1..cade4ef3cd 100644
--- a/library/cpp/charset/CMakeLists.darwin-x86_64.txt
+++ b/library/cpp/charset/CMakeLists.darwin-x86_64.txt
@@ -16,6 +16,6 @@ target_link_libraries(library-cpp-charset PUBLIC
 )
 target_sources(library-cpp-charset PRIVATE
   ${CMAKE_SOURCE_DIR}/library/cpp/charset/decodeunknownplane.cpp
-  ${CMAKE_SOURCE_DIR}/library/cpp/charset/iconv.cpp
   ${CMAKE_SOURCE_DIR}/library/cpp/charset/wide.cpp
+  ${CMAKE_SOURCE_DIR}/library/cpp/charset/iconv.cpp
 )
diff --git a/library/cpp/charset/CMakeLists.linux-aarch64.txt b/library/cpp/charset/CMakeLists.linux-aarch64.txt
index 9d456b690b..63f8766de9 100644
--- a/library/cpp/charset/CMakeLists.linux-aarch64.txt
+++ b/library/cpp/charset/CMakeLists.linux-aarch64.txt
@@ -17,6 +17,6 @@ target_link_libraries(library-cpp-charset PUBLIC
 )
 target_sources(library-cpp-charset PRIVATE
   ${CMAKE_SOURCE_DIR}/library/cpp/charset/decodeunknownplane.cpp
-  ${CMAKE_SOURCE_DIR}/library/cpp/charset/iconv.cpp
   ${CMAKE_SOURCE_DIR}/library/cpp/charset/wide.cpp
+  ${CMAKE_SOURCE_DIR}/library/cpp/charset/iconv.cpp
 )
diff --git a/library/cpp/charset/CMakeLists.linux-x86_64.txt b/library/cpp/charset/CMakeLists.linux-x86_64.txt
index 9d456b690b..63f8766de9 100644
--- a/library/cpp/charset/CMakeLists.linux-x86_64.txt
+++ b/library/cpp/charset/CMakeLists.linux-x86_64.txt
@@ -17,6 +17,6 @@ target_link_libraries(library-cpp-charset PUBLIC
 )
 target_sources(library-cpp-charset PRIVATE
   ${CMAKE_SOURCE_DIR}/library/cpp/charset/decodeunknownplane.cpp
-  ${CMAKE_SOURCE_DIR}/library/cpp/charset/iconv.cpp
   ${CMAKE_SOURCE_DIR}/library/cpp/charset/wide.cpp
+  ${CMAKE_SOURCE_DIR}/library/cpp/charset/iconv.cpp
 )
diff --git a/library/cpp/charset/CMakeLists.windows-x86_64.txt b/library/cpp/charset/CMakeLists.windows-x86_64.txt
index 3756311ac1..951a43b812 100644
--- a/library/cpp/charset/CMakeLists.windows-x86_64.txt
+++ b/library/cpp/charset/CMakeLists.windows-x86_64.txt
@@ -18,6 +18,6 @@ target_link_libraries(library-cpp-charset PUBLIC
 )
 target_sources(library-cpp-charset PRIVATE
   ${CMAKE_SOURCE_DIR}/library/cpp/charset/decodeunknownplane.cpp
-  ${CMAKE_SOURCE_DIR}/library/cpp/charset/iconv.cpp
   ${CMAKE_SOURCE_DIR}/library/cpp/charset/wide.cpp
+  ${CMAKE_SOURCE_DIR}/library/cpp/charset/iconv.cpp
 )
diff --git a/library/cpp/charset/ya.make b/library/cpp/charset/ya.make
index 6a52da56bb..6c03d98450 100644
--- a/library/cpp/charset/ya.make
+++ b/library/cpp/charset/ya.make
@@ -6,7 +6,6 @@ ENDIF()
 
 SRCS(
     decodeunknownplane.cpp
-    iconv.cpp
     recyr.hh
     recyr_int.hh
     wide.cpp
@@ -14,9 +13,21 @@ SRCS(
 
 PEERDIR(
     library/cpp/charset/lite
-    contrib/libs/libiconv
 )
 
+IF (OS_ANDROID OR OS_IOS OR LIBRARY_CHARSET_WITHOUT_LIBICONV)
+    SRCS(
+        iconv_mock.cpp
+    )
+ELSE()
+    SRCS(
+        iconv.cpp
+    )
+    PEERDIR(
+        contrib/libs/libiconv
+    )
+ENDIF()
+
 END()
 
 RECURSE_FOR_TESTS(