rsc: ignore -isystem args

Change-Id: Ic46b84d740159826542ead857d15230d54547d88

rsc/source/prj/start.cxx

@@ -235,7 +235,20 @@ SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
     bool bSetSrs = false;
     while( ppStr && i < (aCmdLine.GetCount() -1) )
     {
-        if( '-' == **ppStr )
+        if (strcmp(*ppStr, "-isystem") == 0)
+        {
+            // ignore "-isystem" and following arg
+            if (i < aCmdLine.GetCount() - 1)
+            {
+                ++ppStr;
+                ++i;
+            }
+        }
+        else if (strncmp(*ppStr, "-isystem", strlen("-isystem")) == 0)
+        {
+            // ignore args starting with "-isystem"
+        }
+        else if( '-' == **ppStr )
         {
             if( !rsc_stricmp( (*ppStr) + 1, "p" )
               || !rsc_stricmp( (*ppStr) + 1, "l" ) )

rsc/source/rsc/rsc.cxx

@@ -100,7 +100,20 @@ RscCmdLine::RscCmdLine( int argc, char ** argv, RscError * pEH )
 #if OSL_DEBUG_LEVEL > 1
         fprintf( stderr, "CmdLineArg: \"%s\"\n", *ppStr );
 #endif
-        if( '-' == **ppStr )
+        if (strcmp(*ppStr, "-isystem") == 0)
+        {
+            // ignore "-isystem" and following arg
+            if (i < aCmdLine.GetCount() - 1)
+            {
+                ++ppStr;
+                ++i;
+            }
+        }
+        else if (strncmp(*ppStr, "-isystem", strlen("-isystem")) == 0)
+        {
+            // ignore args starting with "-isystem"
+        }
+        else if( '-' == **ppStr )
         {
             if( !rsc_stricmp( (*ppStr) + 1, "h" )
               || !strcmp( (*ppStr) + 1, "?" ) )

rsc/source/rscpp/cpp3.c

@@ -217,7 +217,19 @@ dooptions(int argc, char** argv)
         for (i = j = 1; i < argc; i++) {
             arg = ap = argv[i];
 
-            if (*ap++ != '-' || *ap == EOS)
+            if (strcmp(arg, "-isystem") == 0)
+            {
+                // ignore "-isystem" and following arg
+                if (i < argc)
+                {
+                    ++i;
+                }
+            }
+            else if (strncmp(arg, "-isystem", strlen("-isystem")) == 0)
+            {
+                // ignore args starting with "-isystem"
+            }
+            else if (*ap++ != '-' || *ap == EOS)
             {
                     argv[j++] = argv[i];
             }