diff --git a/CMake/TdSetUpCompiler.cmake b/CMake/TdSetUpCompiler.cmake
new file mode 100644
index 000000000..11a681c1f
--- /dev/null
+++ b/CMake/TdSetUpCompiler.cmake
@@ -0,0 +1,145 @@
+# - Configures C++14 compiler, setting TDLib-specific compilation options.
+
+function(td_set_up_compiler)
+  set(CMAKE_EXPORT_COMPILE_COMMANDS 1 PARENT_SCOPE)
+
+  set(CMAKE_POSITION_INDEPENDENT_CODE ON PARENT_SCOPE)
+
+  if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+    set(GCC 1)
+    set(GCC 1 PARENT_SCOPE)
+  elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    set(CLANG 1)
+    set(CLANG 1 PARENT_SCOPE)
+  elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
+    set(INTEL 1)
+    set(INTEL 1 PARENT_SCOPE)
+  elseif (NOT MSVC)
+    message(FATAL_ERROR "Compiler isn't supported")
+  endif()
+
+  include(CheckCXXCompilerFlag)
+
+  if (GCC OR CLANG OR INTEL)
+    if (WIN32 AND INTEL)
+      set(STD14_FLAG /Qstd=c++14)
+    else()
+      set(STD14_FLAG -std=c++14)
+    endif()
+    check_cxx_compiler_flag(${STD14_FLAG} HAVE_STD14)
+    if (NOT HAVE_STD14)
+      string(REPLACE "c++14" "c++1y" STD14_FLAG "${STD14_FLAG}")
+      check_cxx_compiler_flag(${STD14_FLAG} HAVE_STD1Y)
+      set(HAVE_STD14 ${HAVE_STD1Y})
+    endif()
+  elseif (MSVC)
+    set(HAVE_STD14 MSVC_VERSION>=1900)
+  endif()
+
+  if (NOT HAVE_STD14)
+    message(FATAL_ERROR "No C++14 support in the compiler. Please upgrade the compiler.")
+  endif()
+
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+  set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
+  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
+
+  if (MSVC)
+    if (CMAKE_CXX_FLAGS_DEBUG MATCHES "/RTC1")
+      string(REPLACE "/RTC1" " " CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
+    endif()
+    add_definitions(-D_SCL_SECURE_NO_WARNINGS -D_CRT_SECURE_NO_WARNINGS)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /utf-8 /GR- /W4 /wd4100 /wd4127 /wd4324 /wd4505 /wd4814 /wd4702 /bigobj")
+  elseif (CLANG OR GCC)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${STD14_FLAG} -fno-omit-frame-pointer -fno-exceptions -fno-rtti")
+    if (APPLE)
+      set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-dead_strip,-x,-S")
+    else()
+      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffunction-sections -fdata-sections")
+      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffunction-sections -fdata-sections")
+      set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--gc-sections -Wl,--exclude-libs,ALL")
+    endif()
+
+    if (WIN32 OR CYGWIN)
+      if (GCC)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wa,-mbig-obj")
+      endif()
+    endif()
+  elseif (INTEL)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${STD14_FLAG}")
+  endif()
+
+  if (WIN32)
+    add_definitions(-DNTDDI_VERSION=0x06020000 -DWINVER=0x0602 -D_WIN32_WINNT=0x0602 -DPSAPI_VERSION=1 -DNOMINMAX -DUNICODE -D_UNICODE -DWIN32_LEAN_AND_MEAN)
+  endif()
+  if (CYGWIN)
+    add_definitions(-D_DEFAULT_SOURCE=1 -DFD_SETSIZE=4096)
+  endif()
+
+  if (NOT ANDROID) # _FILE_OFFSET_BITS is broken in NDK r15, r15b and r17 and doesn't work prior to Android 7.0
+    add_definitions(-D_FILE_OFFSET_BITS=64)
+  endif()
+
+  include(AddCXXCompilerFlag)
+  if (NOT MSVC)
+    add_cxx_compiler_flag("-Wall")
+    add_cxx_compiler_flag("-Wextra")
+    add_cxx_compiler_flag("-Wimplicit-fallthrough=2")
+    add_cxx_compiler_flag("-Wpointer-arith")
+    add_cxx_compiler_flag("-Wcast-qual")
+    add_cxx_compiler_flag("-Wsign-compare")
+    add_cxx_compiler_flag("-Wduplicated-branches")
+    add_cxx_compiler_flag("-Wduplicated-cond")
+    add_cxx_compiler_flag("-Walloc-zero")
+    add_cxx_compiler_flag("-Wlogical-op")
+    add_cxx_compiler_flag("-Wno-tautological-compare")
+    add_cxx_compiler_flag("-Wpointer-arith")
+    add_cxx_compiler_flag("-Wvla")
+    add_cxx_compiler_flag("-Wnon-virtual-dtor")
+    add_cxx_compiler_flag("-Wno-unused-parameter")
+    add_cxx_compiler_flag("-Wconversion")
+    add_cxx_compiler_flag("-Wno-sign-conversion")
+    add_cxx_compiler_flag("-Wc++14-compat-pedantic")
+    add_cxx_compiler_flag("-Wdeprecated")
+    add_cxx_compiler_flag("-Wno-unused-command-line-argument")
+    add_cxx_compiler_flag("-Qunused-arguments")
+    add_cxx_compiler_flag("-Wodr")
+    add_cxx_compiler_flag("-flto-odr-type-merging")
+
+  #  add_cxx_compiler_flag("-Werror")
+
+  #  add_cxx_compiler_flag("-Wcast-align")
+
+  #std::int32_t <-> int and off_t <-> std::size_t/std::int64_t
+  #  add_cxx_compiler_flag("-Wuseless-cast")
+
+  #external headers like openssl
+  #  add_cxx_compiler_flag("-Wzero-as-null-pointer-constant")
+  endif()
+
+  if (GCC AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0))
+    add_cxx_compiler_flag("-Wno-maybe-uninitialized")  # too much false positives
+  endif()
+  if (GCC AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0))
+    # warns about a lot of "return std::move", which are not redundant for compilers without fix for DR 1579, i.e. GCC 4.9 or clang 3.8
+    # see http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1579
+    add_cxx_compiler_flag("-Wno-redundant-move")
+  endif()
+  if (CLANG AND (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5))
+    # https://stackoverflow.com/questions/26744556/warning-returning-a-captured-reference-from-a-lambda
+    add_cxx_compiler_flag("-Wno-return-stack-address")
+  endif()
+
+  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -isystem /usr/include/c++/v1")
+  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
+  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread")
+  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
+  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined")
+  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=leak")
+
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" PARENT_SCOPE)
+  set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" PARENT_SCOPE)
+  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}" PARENT_SCOPE)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" PARENT_SCOPE)
+endfunction()
diff --git a/CMakeLists.txt b/CMakeLists.txt
index febffe22e..8364da79f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,10 +32,6 @@ if (TD_ENABLE_DOTNET AND (CMAKE_VERSION VERSION_LESS "3.1.0"))
   message(FATAL_ERROR "CMake 3.1.0 or higher is required. You are running version ${CMAKE_VERSION}.")
 endif()
 
-set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
-
-set(CMAKE_POSITION_INDEPENDENT_CODE ON)
-
 enable_testing()
 
 if (POLICY CMP0069)
@@ -111,38 +107,6 @@ if (OPENSSL_FOUND)
   message(STATUS "Found OpenSSL: ${OPENSSL_INCLUDE_DIR} ${OPENSSL_LIBRARIES}")
 endif()
 
-if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-  set(GCC 1)
-elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-  set(CLANG 1)
-elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
-  set(INTEL 1)
-elseif (NOT MSVC)
-  message(FATAL_ERROR "Compiler isn't supported")
-endif()
-
-include(CheckCXXCompilerFlag)
-
-if (GCC OR CLANG OR INTEL)
-  if (WIN32 AND INTEL)
-    set(STD14_FLAG /Qstd=c++14)
-  else()
-    set(STD14_FLAG -std=c++14)
-  endif()
-  check_cxx_compiler_flag(${STD14_FLAG} HAVE_STD14)
-  if (NOT HAVE_STD14)
-    string(REPLACE "c++14" "c++1y" STD14_FLAG "${STD14_FLAG}")
-    check_cxx_compiler_flag(${STD14_FLAG} HAVE_STD1Y)
-    set(HAVE_STD14 ${HAVE_STD1Y})
-  endif()
-elseif (MSVC)
-  set(HAVE_STD14 MSVC_VERSION>=1900)
-endif()
-
-if (NOT HAVE_STD14)
-  message(FATAL_ERROR "No C++14 support in the compiler. Please upgrade the compiler.")
-endif()
-
 set(CMAKE_THREAD_PREFER_PTHREAD ON)
 set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)
@@ -151,29 +115,12 @@ if (THREADS_HAVE_PTHREAD_ARG)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
 endif()
 
-if (MSVC)
-  if (CMAKE_CXX_FLAGS_DEBUG MATCHES "/RTC1")
-    string(REPLACE "/RTC1" " " CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
-  endif()
-  add_definitions(-D_SCL_SECURE_NO_WARNINGS -D_CRT_SECURE_NO_WARNINGS)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /utf-8 /GR- /W4 /wd4100 /wd4127 /wd4324 /wd4505 /wd4814 /wd4702 /bigobj")
-elseif (CLANG OR GCC)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${STD14_FLAG} -fno-omit-frame-pointer -fno-exceptions -fno-rtti")
-  if (APPLE)
-    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-dead_strip,-x,-S")
-  else()
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffunction-sections -fdata-sections")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffunction-sections -fdata-sections")
-    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--gc-sections -Wl,--exclude-libs,ALL")
-  endif()
-
-  if (WIN32 OR CYGWIN)
-    if (GCC)
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wa,-mbig-obj")
-    endif()
-  endif()
+include(TdSetUpCompiler)
+td_set_up_compiler()
 
+if (CLANG OR GCC)
   if (MEMPROF)
+    include(CheckCXXCompilerFlag)
     check_cxx_compiler_flag(-no-pie CXX_NO_PIE_FLAG)
     if (CXX_NO_PIE_FLAG)
       set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -no-pie")
@@ -181,78 +128,8 @@ elseif (CLANG OR GCC)
       set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-no_pie")
     endif()
   endif()
-elseif (INTEL)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${STD14_FLAG}")
 endif()
 
-if (WIN32)
-  add_definitions(-DNTDDI_VERSION=0x06020000 -DWINVER=0x0602 -D_WIN32_WINNT=0x0602 -DPSAPI_VERSION=1 -DNOMINMAX -DUNICODE -D_UNICODE -DWIN32_LEAN_AND_MEAN)
-endif()
-if (CYGWIN)
-  add_definitions(-D_DEFAULT_SOURCE=1 -DFD_SETSIZE=4096)
-endif()
-
-if (NOT ANDROID) # _FILE_OFFSET_BITS is broken in NDK r15, r15b and r17 and doesn't work prior to Android 7.0
-  add_definitions(-D_FILE_OFFSET_BITS=64)
-endif()
-
-include(AddCXXCompilerFlag)
-if (NOT MSVC)
-  add_cxx_compiler_flag("-Wall")
-  add_cxx_compiler_flag("-Wextra")
-  add_cxx_compiler_flag("-Wimplicit-fallthrough=2")
-  add_cxx_compiler_flag("-Wpointer-arith")
-  add_cxx_compiler_flag("-Wcast-qual")
-  add_cxx_compiler_flag("-Wsign-compare")
-  add_cxx_compiler_flag("-Wduplicated-branches")
-  add_cxx_compiler_flag("-Wduplicated-cond")
-  add_cxx_compiler_flag("-Walloc-zero")
-  add_cxx_compiler_flag("-Wlogical-op")
-  add_cxx_compiler_flag("-Wno-tautological-compare")
-  add_cxx_compiler_flag("-Wpointer-arith")
-  add_cxx_compiler_flag("-Wvla")
-  add_cxx_compiler_flag("-Wnon-virtual-dtor")
-  add_cxx_compiler_flag("-Wno-unused-parameter")
-  add_cxx_compiler_flag("-Wconversion")
-  add_cxx_compiler_flag("-Wno-sign-conversion")
-  add_cxx_compiler_flag("-Wc++14-compat-pedantic")
-  add_cxx_compiler_flag("-Wdeprecated")
-  add_cxx_compiler_flag("-Wno-unused-command-line-argument")
-  add_cxx_compiler_flag("-Qunused-arguments")
-  add_cxx_compiler_flag("-Wodr")
-  add_cxx_compiler_flag("-flto-odr-type-merging")
-
-#  add_cxx_compiler_flag("-Werror")
-
-#  add_cxx_compiler_flag("-Wcast-align")
-
-#std::int32_t <-> int and off_t <-> std::size_t/std::int64_t
-#  add_cxx_compiler_flag("-Wuseless-cast")
-
-#external headers like openssl
-#  add_cxx_compiler_flag("-Wzero-as-null-pointer-constant")
-endif()
-
-if (GCC AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0))
-  add_cxx_compiler_flag("-Wno-maybe-uninitialized")  # too much false positives
-endif()
-if (GCC AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0))
-  # warns about a lot of "return std::move", which are not redundant for compilers without fix for DR 1579, i.e. GCC 4.9 or clang 3.8
-  # see http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1579
-  add_cxx_compiler_flag("-Wno-redundant-move")
-endif()
-if (CLANG AND (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5))
-  # https://stackoverflow.com/questions/26744556/warning-returning-a-captured-reference-from-a-lambda
-  add_cxx_compiler_flag("-Wno-return-stack-address")
-endif()
-
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -isystem /usr/include/c++/v1")
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread")
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined")
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=leak")
-
 add_subdirectory(tdtl)
 
 add_subdirectory(tdutils)