cmark

diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -16,18 +16,6 @@ add_subdirectory(src)
 
 set(CMAKE_BUILD_TYPE Release)
 
-if(MSVC)
-  # Force to always compile with W4
-  if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
-    string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
-  else()
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
-  endif()
-elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
-  # Update if necessary
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wno-long-long -pedantic")
-endif()
-
 #option(${PROJECT_NAME}_WITH_DOCS "generate Documentation" OFF)
 #option(${PROJECT_NAME}_WITH_TESTS "enable testing" ON)
 option(CMAKE_SUPPRESS_REGENERATION "suppress rules to re-run cmake on changes (warning: no dependency checks!)?" OFF)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -70,4 +70,16 @@ if(UNIX)
 endif(UNIX)
 
 include (CheckIncludeFile)
-CHECK_INCLUDE_FILE (stdbool.h HAVE_STDBOOL_H)-
\ No newline at end of file
+CHECK_INCLUDE_FILE (stdbool.h HAVE_STDBOOL_H)
+
+# Always compile with warnings
+if(MSVC)
+  # Force to always compile with W4
+  if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
+    string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
+  else()
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W4")
+  endif()
+elseif(CMAKE_COMPILER_IS_GNUCC OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -std=c99")
+endif()