cmake: partial for curl#2358. Moved CMAKE_C_FLAGS update after the co…

…nfiguration checks to avoid failures in case of warnings

CMakeLists.txt

@@ -232,16 +232,6 @@ if(BORLAND)
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w-")
 endif(BORLAND)
 
-if(CURL_WERROR)
-  if(MSVC_VERSION)
-    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /WX")
-    set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /WX")
-  else()
-    # this assumes clang or gcc style options
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
-  endif()
-endif(CURL_WERROR)
-
 # If we are on AIX, do the _ALL_SOURCE magic
 if(${CMAKE_SYSTEM_NAME} MATCHES AIX)
   set(_ALL_SOURCE 1)
@@ -1127,6 +1117,16 @@ if(MSVC)
   endif(CMAKE_C_FLAGS MATCHES "/W[0-4]")
 endif(MSVC)
 
+if(CURL_WERROR)
+  if(MSVC_VERSION)
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /WX")
+    set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /WX")
+  else()
+    # this assumes clang or gcc style options
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
+  endif()
+endif(CURL_WERROR)
+
 # Ugly (but functional) way to include "Makefile.inc" by transforming it (= regenerate it).
 function(TRANSFORM_MAKEFILE_INC INPUT_FILE OUTPUT_FILE)
   file(READ ${INPUT_FILE} MAKEFILE_INC_TEXT)