cmake: fix adding of compiler flags, and now it will

- add_compiler_flags() must accept array IOW just ARGN will be enoough
- add_compiler_flags() called with variable name instead of it's value

P.S. and fix some alignments issues
P.P.S. more cmake issues expected since now CFLAGS actually works
P.P.P.S. some issues with cmake cache is possible, so just reset it

CMakeLists.txt

@@ -193,14 +193,15 @@ if (CMAKE_COMPILER_IS_GNUCC)
     # have -fno-strict-aliasing
     list(APPEND __FLAGS -fno-strict-aliasing)
 
-        add_compiler_flags(__FLAGS)
+    add_compiler_flags(${__FLAGS})
 endif()
 
 if (APPLE)
     # Get rid of deprecated warnings for OpenSSL on OSX 10.7 and greater.
     add_compiler_flags(
         -Wno-error=deprecated-declarations
-            -Qunused-arguments)
+        -Qunused-arguments
+    )
 endif()
 
 # Winsock.

cmake/AddCompilerFlags.cmake

@@ -1,7 +1,7 @@
 include(CheckCCompilerFlag)
 
-macro(add_compiler_flags _flags)
+macro(add_compiler_flags)
-	foreach(flag ${_flags})
+	foreach(flag ${ARGN})
 		string(REGEX REPLACE "[-.+/:= ]" "_" _flag_esc "${flag}")
 
 		check_c_compiler_flag("${flag}" check_c_compiler_flag_${_flag_esc})
@@ -11,5 +11,3 @@ macro(add_compiler_flags _flags)
 		endif()
 	endforeach()
 endmacro()
-
-