Fixed to the features check

include/polarssl/version.h

@@ -99,7 +99,9 @@ void version_get_string_full( char *string );
  *
  * \param feature   The string for the define to check (e.g. "POLARSSL_AES_C")
  *
- * \return          0 if the feature is present, -1 if not.
+ * \return          0 if the feature is present, -1 if the feature is not
+ *                  present and -2 if support for feature checking as a whole
+ *                  was not compiled in.
  */
 int version_check_feature( const char *feature );
 

scripts/data_files/version_features.fmt

@@ -41,7 +41,9 @@
 #endif
 
 const char *features[] = {
+#if defined(POLARSSL_VERSION_FEATURES)
 FEATURE_DEFINES
+#endif
     NULL
 };
 
@@ -49,6 +51,9 @@ int version_check_feature( const char *feature )
 {
     const char **idx = features;
 
+    if( *idx == NULL )
+        return( -2 );
+
     if( feature == NULL )
         return( -1 );
 

visualc/VS2010/PolarSSL.vcxproj

@@ -265,6 +265,7 @@
     <ClCompile Include="..\..\library\threading.c" />
     <ClCompile Include="..\..\library\timing.c" />
     <ClCompile Include="..\..\library\version.c" />
+    <ClCompile Include="..\..\library\version_features.c" />
     <ClCompile Include="..\..\library\x509.c" />
     <ClCompile Include="..\..\library\x509_create.c" />
     <ClCompile Include="..\..\library\x509_crl.c" />

visualc/VS6/polarssl.dsp

@@ -317,6 +317,10 @@ SOURCE=..\..\library\version.c
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\library\version_features.c
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\library\x509.c
 # End Source File
 # Begin Source File