Changed: Allow to use static C++ runtimes

--HG--
branch : develop

code/CMakeModules/nel.cmake

@@ -238,6 +238,7 @@ MACRO(NL_SETUP_DEFAULT_OPTIONS)
     OPTION(WITH_EXTERNAL          "With provided external."                       OFF)
   ENDIF()
   OPTION(WITH_STATIC_EXTERNAL     "With static external libraries"                OFF)
+  OPTION(WITH_STATIC_RUNTIMES     "Use only static C++ runtimes"                  OFF)
   IF(UNIX AND NOT APPLE)
     OPTION(WITH_UNIX_STRUCTURE    "Use UNIX structure (bin, include, lib)"        ON )
   ELSE()
@@ -636,8 +637,14 @@ MACRO(NL_SETUP_BUILD)
       SET(NL_RELEASE_LINKFLAGS "/RELEASE ${NL_RELEASE_LINKFLAGS}")
     ENDIF()
 
-    SET(NL_DEBUG_CFLAGS "/Zi /MDd /RTC1 /D_DEBUG ${DEBUG_CFLAGS} ${NL_DEBUG_CFLAGS}")
-    SET(NL_RELEASE_CFLAGS "/MD /DNDEBUG ${RELEASE_CFLAGS} ${NL_RELEASE_CFLAGS}")
+    IF(WITH_STATIC_RUNTIMES)
+      SET(RUNTIME_FLAG "/MT")
+    ELSE()
+      SET(RUNTIME_FLAG "/MD")
+    ENDIF()
+
+    SET(NL_DEBUG_CFLAGS "/Zi ${RUNTIME_FLAG}d /RTC1 /D_DEBUG ${DEBUG_CFLAGS} ${NL_DEBUG_CFLAGS}")
+    SET(NL_RELEASE_CFLAGS "${RUNTIME_FLAG} /DNDEBUG ${RELEASE_CFLAGS} ${NL_RELEASE_CFLAGS}")
     SET(NL_DEBUG_LINKFLAGS "/DEBUG /OPT:NOREF /OPT:NOICF /NODEFAULTLIB:msvcrt ${MSVC_INCREMENTAL_YES_FLAG} ${NL_DEBUG_LINKFLAGS}")
     SET(NL_RELEASE_LINKFLAGS "/OPT:REF /OPT:ICF /INCREMENTAL:NO ${NL_RELEASE_LINKFLAGS}")
 
@@ -967,6 +974,10 @@ MACRO(NL_SETUP_BUILD)
 
     IF(NOT APPLE)
       ADD_PLATFORM_LINKFLAGS("-Wl,--no-undefined -Wl,--as-needed")
+
+      IF(WITH_STATIC_RUNTIMES)
+        ADD_PLATFORM_LINKFLAGS("-static-libstdc++")
+      ENDIF()
     ENDIF()
 
     IF(NOT APPLE)