diff --git a/.cirrus.yml b/.cirrus.yml
index d1b627a..3e99e28 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -14,14 +14,14 @@ main_task:
 
     # Basic c build
     - cd lib 
-    - cc -Wall -Wextra -Werror --std=gnu89 -DFT_CONGIG_HAVE_WCHAR fort.c -c -o fort.o 
+    - cc -Wall -Wextra -Werror --std=gnu89 fort.c -c -o fort.o 
     - rm fort.o 
     - cd .. 
 
     # Basic c++ build
     - cd lib 
     - cp fort.c fort.cpp
-    - c++ -Wall -Wextra -Werror -DFT_CONGIG_HAVE_WCHAR fort.cpp -c -o fort.o 
+    - c++ -Wall -Wextra -Werror fort.cpp -c -o fort.o 
     - rm fort.o 
     - rm fort.cpp 
     - cd .. 
@@ -47,10 +47,10 @@ main_task:
     - cd ..
     - rm -r build/* 
 
-    # Test without WCHAR support
+    # Test without WCHAR and UTF-8 support
     - mkdir -p build
     - cd build
-    - cmake .. -DFORT_ENABLE_WCHAR=OFF -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_STANDARD=99 -DCMAKE_CXX_STANDARD=11 -DCMAKE_C_FLAGS="${CMAKE_C_FLAGS}" -DCMAKE_CXX_FLAGS="${CMAKE_CXX_FLAGS}"
+    - cmake .. -DFORT_ENABLE_WCHAR=OFF -DFORT_ENABLE_UTF8=OFF -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_STANDARD=99 -DCMAKE_CXX_STANDARD=11 -DCMAKE_C_FLAGS="${CMAKE_C_FLAGS}" -DCMAKE_CXX_FLAGS="${CMAKE_CXX_FLAGS}"
     - cmake --build . --target all 
     - ls
     - ctest -VV
diff --git a/.travis.yml b/.travis.yml
index b6f2a92..a7de3d8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -144,7 +144,7 @@ script:
 
   # basic build with old c standard (use gnu89 instead of c89 because some functions are not defines in c89)
   - cd lib 
-  - ${CC} -Wall -Wextra -Werror --std=gnu89 -DFT_CONGIG_HAVE_WCHAR fort.c -c -o fort.o 
+  - ${CC} -Wall -Wextra -Werror --std=gnu89 fort.c -c -o fort.o 
   - rm fort.o 
   - cd .. 
 
@@ -199,12 +199,12 @@ script:
   - ls
   - ctest -VV
 
-  # Test without WCHAR support
+  # Test without WCHAR and UTF-8 support
   - cd ..
   - rm -r build/*
   - mkdir -p build
   - cd build
-  - cmake .. -DFORT_ENABLE_WCHAR=OFF -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_STANDARD=99 -DCMAKE_CXX_STANDARD=11 -DCMAKE_C_FLAGS="${CMAKE_C_FLAGS}" -DCMAKE_CXX_FLAGS="${CMAKE_CXX_FLAGS}"
+  - cmake .. -DFORT_ENABLE_WCHAR=OFF -DFORT_ENABLE_UTF8=OFF -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_STANDARD=99 -DCMAKE_CXX_STANDARD=11 -DCMAKE_C_FLAGS="${CMAKE_C_FLAGS}" -DCMAKE_CXX_FLAGS="${CMAKE_CXX_FLAGS}"
   - cmake --build . --target all 
   - ls
   - ctest -VV
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1296368..fce4144 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,6 +14,7 @@ include(${CMAKE_ROOT}/Modules/ExternalProject.cmake)
 
 option(FORT_ENABLE_ASTYLE "Enable astyle" OFF)
 option(FORT_ENABLE_WCHAR "Enable wchar support" ON)
+option(FORT_ENABLE_UTF8 "Enable utf8 support" ON)
 set(FORT_BUILD_TYPE "common" CACHE STRING "Build type")
 
 set_property(CACHE FORT_BUILD_TYPE PROPERTY STRINGS
@@ -137,11 +138,16 @@ endforeach()
 # ------------------------------------------------------------------------------
 # Add WChar support for the build
 # ------------------------------------------------------------------------------
-if(FORT_ENABLE_WCHAR)
-    add_definitions(-DFT_CONGIG_HAVE_WCHAR)
+if(NOT FORT_ENABLE_WCHAR)
+    add_definitions(-DFT_CONGIG_DISABLE_WCHAR)
+endif()
+if(NOT FORT_ENABLE_UTF8)
+    add_definitions(-DFT_CONGIG_DISABLE_UTF8)
 endif()
 
 set(FORT_HAVE_WCHAR "${FORT_ENABLE_WCHAR}" CACHE STRING "fort option")
+set(FORT_HAVE_UTF8 "${FORT_ENABLE_UTF8}" CACHE STRING "fort option")
+
 
 
 # ------------------------------------------------------------------------------
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 3a411b9..e065284 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -1,4 +1,5 @@
 option(FORT_HAVE_WCHAR "Enable wchar support" ON)
+option(FORT_HAVE_UTF8 "Enable UTF8 support" ON)
 
 add_library(fort
     fort.c)
@@ -12,10 +13,17 @@ set_target_properties(fort
     PROPERTIES VERSION ${libfort_VERSION}
     SOVERSION ${libfort_SOVERSION})
 
-if(FORT_HAVE_WCHAR)
+if(NOT FORT_HAVE_WCHAR)
     target_compile_definitions(fort
         PRIVATE
-            -DFT_CONGIG_HAVE_WCHAR
+            -DFT_CONGIG_DISABLE_WCHAR
+    )
+endif()
+
+if(NOT FORT_HAVE_UTF8)
+    target_compile_definitions(fort
+        PRIVATE
+            -DFT_CONGIG_DISABLE_UTF8
     )
 endif()
 
diff --git a/lib/fort.h b/lib/fort.h
index a93f012..c6317df 100644
--- a/lib/fort.h
+++ b/lib/fort.h
@@ -53,21 +53,37 @@ SOFTWARE.
 /*****************************************************************************
  *               Configuration
  *****************************************************************************/
+///**
+// * libfort configuration macros
+// * (to enable/disable some options this macros should be defined/undefined)
+// */
+///** #define FT_CONGIG_HAVE_WCHAR */
+
+//#if defined(FT_CONGIG_HAVE_WCHAR)
+//#define FT_HAVE_WCHAR
+//#endif
+
+//#define FT_CONGIG_HAVE_UTF8
+//#if defined(FT_CONGIG_HAVE_UTF8)
+//#define FT_HAVE_UTF8
+//#endif
+
 /**
  * libfort configuration macros
- * (to enable/disable some options this macros should be defined/undefined)
+ * (to disable wchar_t/utf-8 support this macros should be defined)
  */
-/** #define FT_CONGIG_HAVE_WCHAR */
+/** #define FT_CONGIG_DISABLE_WCHAR */
+/** #define FT_CONGIG_DISABLE_UTF8 */
 
-#if defined(FT_CONGIG_HAVE_WCHAR)
+#if !defined(FT_CONGIG_DISABLE_WCHAR)
 #define FT_HAVE_WCHAR
 #endif
 
-#define FT_CONGIG_HAVE_UTF8
-#if defined(FT_CONGIG_HAVE_UTF8)
+#if !defined(FT_CONGIG_DISABLE_UTF8)
 #define FT_HAVE_UTF8
 #endif
 
+
 /*****************************************************************************
  *               RETURN CODES
  *****************************************************************************/
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 5b2115a..26e4798 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,4 +1,5 @@
 option(FORT_HAVE_WCHAR "Enable wchar support" ON)
+option(FORT_HAVE_UTF8 "Enable UTF8 support" ON)
 option(FORT_TEST_BUILD "Export some internal symbols for tests" ON)
 
 add_library(fort_dev
@@ -17,10 +18,17 @@ target_include_directories(fort_dev
         ${CMAKE_CURRENT_SOURCE_DIR}
 )
 
-if(FORT_HAVE_WCHAR)
+if(NOT FORT_HAVE_WCHAR)
     target_compile_definitions(fort_dev
         PRIVATE
-            -DFT_CONGIG_HAVE_WCHAR
+            -DFT_CONGIG_DISABLE_WCHAR
+    )
+endif()
+
+if(NOT FORT_HAVE_UTF8)
+    target_compile_definitions(fort_dev
+        PRIVATE
+            -DFT_CONGIG_DISABLE_UTF8
     )
 endif()
 
diff --git a/src/fort.h b/src/fort.h
index a93f012..c6317df 100644
--- a/src/fort.h
+++ b/src/fort.h
@@ -53,21 +53,37 @@ SOFTWARE.
 /*****************************************************************************
  *               Configuration
  *****************************************************************************/
+///**
+// * libfort configuration macros
+// * (to enable/disable some options this macros should be defined/undefined)
+// */
+///** #define FT_CONGIG_HAVE_WCHAR */
+
+//#if defined(FT_CONGIG_HAVE_WCHAR)
+//#define FT_HAVE_WCHAR
+//#endif
+
+//#define FT_CONGIG_HAVE_UTF8
+//#if defined(FT_CONGIG_HAVE_UTF8)
+//#define FT_HAVE_UTF8
+//#endif
+
 /**
  * libfort configuration macros
- * (to enable/disable some options this macros should be defined/undefined)
+ * (to disable wchar_t/utf-8 support this macros should be defined)
  */
-/** #define FT_CONGIG_HAVE_WCHAR */
+/** #define FT_CONGIG_DISABLE_WCHAR */
+/** #define FT_CONGIG_DISABLE_UTF8 */
 
-#if defined(FT_CONGIG_HAVE_WCHAR)
+#if !defined(FT_CONGIG_DISABLE_WCHAR)
 #define FT_HAVE_WCHAR
 #endif
 
-#define FT_CONGIG_HAVE_UTF8
-#if defined(FT_CONGIG_HAVE_UTF8)
+#if !defined(FT_CONGIG_DISABLE_UTF8)
 #define FT_HAVE_UTF8
 #endif
 
+
 /*****************************************************************************
  *               RETURN CODES
  *****************************************************************************/
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 275b8dc..928c11d 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,4 +1,5 @@
 option(FORT_HAVE_WCHAR "Enable wchar support" ON)
+option(FORT_HAVE_UTF8 "Enable UTF8 support" ON)
 option(FORT_TEST_BUILD "Export some internal symbols for tests" ON)
 
 
diff --git a/tests/tests.h b/tests/tests.h
index ee0cd90..0e50c2e 100644
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -14,7 +14,7 @@
 #define THEN(...)
 #define SCENARIO(...)
 
-#if defined(FT_CONGIG_HAVE_WCHAR)
+#if !defined(FT_CONGIG_DISABLE_WCHAR)
 #define FT_HAVE_WCHAR
 #endif