From e5784836a699a045964140b30aed142c6f94c747 Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Sat, 21 Jan 2017 16:42:43 +0300
Subject: CMakeLists.txt: refactoring

---
 CMakeLists.txt | 50 +++++++++++++++++++++++++++++++++-----------------
 1 file changed, 33 insertions(+), 17 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a2838f9..8d3a6c8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,30 +7,44 @@ elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
 endif()
 
 get_directory_property(parent_directory PARENT_DIRECTORY)
-set(is_root $<NOT:parent_directory>)
+set(is_root_project $<NOT:parent_directory>)
+
+function(use_static_runtime_msvc target)
+    target_compile_options(${target} PRIVATE
+        $<$<CONFIG:Debug>:/MTd>
+        $<$<CONFIG:Release>:/MT>)
+endfunction()
+
+function(use_static_runtime_gcc target)
+    get_target_property(type ${target} TYPE)
+    if(type STREQUAL EXECUTABLE)
+        target_link_libraries(${target} PRIVATE -static)
+    endif()
+endfunction()
 
 function(use_static_runtime target)
-    if(TARGET ${target} AND is_root)
-        if(MSVC)
-            target_compile_options(${target} PRIVATE
-                $<$<CONFIG:Release>:/MT>
-                $<$<CONFIG:Debug>:/MTd>)
-        elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
-            get_target_property(type ${target} TYPE)
-            if(type STREQUAL EXECUTABLE)
-                target_link_libraries(${target} PRIVATE -static)
-            endif()
-        endif()
+    if(MSVC)
+        use_static_runtime_msvc(${target})
+    elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
+        use_static_runtime_gcc(${target})
+    endif()
+endfunction()
+
+function(strip_symbol_table_gcc target)
+    target_link_libraries(${target} PRIVATE $<$<CONFIG:Release>:-s>)
+endfunction()
+
+function(strip_symbol_table target)
+    if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
+        strip_symbol_table_gcc(${target})
     endif()
 endfunction()
 
 macro(add_executable target)
     _add_executable(${ARGV})
-    if(TARGET ${target})
+    if(TARGET ${target} AND is_root_project)
         use_static_runtime(${target})
-        if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
-            target_link_libraries(${target} PRIVATE $<$<CONFIG:Release>:-s>)
-        endif()
+        strip_symbol_table(${target})
     endif()
 endmacro()
 
@@ -53,7 +67,9 @@ use_static_runtime(libaes)
 
 if(MSVC)
     target_compile_definitions(libaes PRIVATE _CRT_SECURE_NO_WARNINGS)
-elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
+endif()
+
+if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
     target_compile_options(libaes PUBLIC -mssse3 -maes)
 endif()
 
-- 
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