Added query for Mac OS as a platform in PLATFORM.

Fixed cURL library to ustilize Mac OS dylib version of libcurl


git-svn-id: https://svn.origo.ethz.ch/eiffelstudio/trunk/Src/library/cURL@72154 8089f293-4706-0410-a29e-feb5c42a2edf

curl_utility.e

@@ -14,12 +14,11 @@ feature -- Query
 
 	module_name: STRING is
 			-- Module name.
-		local
-			l_platform: PLATFORM
 		once
-			create l_platform
-			if l_platform.is_windows then
+			if {PLATFORM}.is_windows then
 				Result := "libcurl.dll"
+			elseif {PLATFORM}.is_mac then
+				Result := "libcurl.dylib"
 			else
 				Result := "libcurl.so"
 			end