sdk patches

diff --git a/sp/src/mathlib/mathlib.vpc b/sp/src/mathlib/mathlib.vpc
index 17021025..8ab4799d 100644
--- a/sp/src/mathlib/mathlib.vpc
+++ b/sp/src/mathlib/mathlib.vpc
@@ -13,6 +13,7 @@ $Configuration
        {
                $AdditionalIncludeDirectories   "$BASE;..\public\mathlib"
                $PreprocessorDefinitions                "$BASE;MATHLIB_LIB"
+               $GCC_ExtraCompilerFlags                 "-Wno-narrowing" [$LINUXALL]
        }
 }

diff --git a/sp/src/tier1/strtools.cpp b/sp/src/tier1/strtools.cpp
index 9b1bfa84..cd0b25fa 100644
--- a/sp/src/tier1/strtools.cpp
+++ b/sp/src/tier1/strtools.cpp
@@ -1420,7 +1420,7 @@ int V_UCS2ToUnicode( const ucs2 *pUCS2, wchar_t *pUnicode, int cubDestSizeInByte
        size_t nMaxUTF8 = cubDestSizeInBytes;
        char *pIn = (char *)pUCS2;
        char *pOut = (char *)pUnicode;
-       if ( conv_t > 0 )
+       if ( conv_t > (iconv_t)0 )
        {
                cchResult = 0;
                cchResult = iconv( conv_t, &pIn, &nLenUnicde, &pOut, &nMaxUTF8 );
@@ -1461,7 +1461,7 @@ int V_UnicodeToUCS2( const wchar_t *pUnicode, int cubSrcInBytes, char *pUCS2, in
        size_t nMaxUCS2 = cubDestSizeInBytes;
        char *pIn = (char*)pUnicode;
        char *pOut = pUCS2;
-       if ( conv_t > 0 )
+       if ( conv_t > (iconv_t)0 )
        {
                cchResult = 0;
                cchResult = iconv( conv_t, &pIn, &nLenUnicde, &pOut, &nMaxUCS2 );
@@ -1508,7 +1508,7 @@ int V_UCS2ToUTF8( const ucs2 *pUCS2, char *pUTF8, int cubDestSizeInBytes )
        size_t nMaxUTF8 = cubDestSizeInBytes - 1;
        char *pIn = (char *)pUCS2;
        char *pOut = (char *)pUTF8;
-       if ( conv_t > 0 )
+       if ( conv_t > (iconv_t)0 )
        {
                cchResult = 0;
                const size_t nBytesToWrite = nMaxUTF8;
@@ -1554,7 +1554,7 @@ int V_UTF8ToUCS2( const char *pUTF8, int cubSrcInBytes, ucs2 *pUCS2, int cubDest
        size_t nMaxUTF8 = cubDestSizeInBytes;
        char *pIn = (char *)pUTF8;
        char *pOut = (char *)pUCS2;
-       if ( conv_t > 0 )
+       if ( conv_t > (iconv_t)0 )
        {
                cchResult = 0;
                cchResult = iconv( conv_t, &pIn, &nLenUnicde, &pOut, &nMaxUTF8 );