add SharedLibrary::getOSName() to improve portability of shared library

real filename over different OS like Linux/Unix/Cygwin & Windows.

Signed-off-by: FrancisANDRE <zosrothko@orange.fr>

Foundation/include/Poco/SharedLibrary.h

@@ -121,7 +121,7 @@ public:
 	static std::string prefix();
 		/// Returns the platform-specific filename prefix
 		/// for shared libraries.
-		/// Most platforms would return an empty string, but
+		/// Most platforms would return "lib" as prefix, while
 	    /// on Cygwin, the "cyg" prefix will be returned.
 		
 	static std::string suffix();
@@ -130,6 +130,11 @@ public:
 		/// In debug mode, the suffix also includes a
 		/// "d" to specify the debug version of a library.
 		
+	static std::string getOSName(const std::string& name);
+		/// Returns the platform-specific filename 
+		/// for shared libraries by prefixing and suffixing name
+		/// with prefix() and suffix()
+
 private:
 	SharedLibrary(const SharedLibrary&);
 	SharedLibrary& operator = (const SharedLibrary&);

Foundation/src/SharedLibrary.cpp

@@ -115,5 +115,9 @@ std::string SharedLibrary::suffix()
 	return suffixImpl();
 }
 
+std::string SharedLibrary::getOSName(const std::string& name) 
+{
+	return prefix() + name + suffix();
+}
 
 } // namespace Poco

Foundation/src/SharedLibrary_HPUX.cpp

@@ -85,7 +85,7 @@ const std::string& SharedLibraryImpl::getPathImpl() const
 
 std::string SharedLibraryImpl::prefixImpl()
 {
-	return "";
+	return "lib";
 }
 
 

Foundation/src/SharedLibrary_UNIX.cpp

@@ -104,7 +104,7 @@ std::string SharedLibraryImpl::prefixImpl()
 #if POCO_OS == POCO_OS_CYGWIN
 	return "cyg";
 #else
-	return "";
+	return "lib";
 #endif
 }