diff --git a/programs/develop/ktcc/trunk/libc/include/math.h b/programs/develop/ktcc/trunk/libc/include/math.h
index 1eb69f3005..9a0f0ae92f 100644
--- a/programs/develop/ktcc/trunk/libc/include/math.h
+++ b/programs/develop/ktcc/trunk/libc/include/math.h
@@ -1,3 +1,7 @@
+/* Copyright (C) 1999 DJ Delorie, see http://www.delorie.com/copyright.html for details */
+/* Copyright (C) 1998 DJ Delorie, see http://www.delorie.com/copyright.html for details */
+/* Copyright (C) 1995 DJ Delorie, see http://www.delorie.com/copyright.html for details */
+
 #ifndef _MATH_H
 #define _MATH_H
 
@@ -5,15 +9,20 @@ extern double   acos(double _x);
 extern double   asin(double _x);
 extern double   atan(double _x);
 extern double   atan2(double _y, double _x);
+extern float    ceilf(float);
 extern double   ceil(double _x);
 extern double   cos(double _x);
 extern double   cosh(double _x);
 extern double   exp(double _x);
+extern double   exp2(double _x);
 extern double   fabs(double _x);
+extern float    fabsf(float);
 extern double   floor(double _x);
+extern float    floorf(float);
 extern double   fmod(double _x, double _y);
 extern double   frexp(double _x, int *_pexp);
 extern double   ldexp(double _x, int _exp);
+extern double   remainder(double, double);
 extern double   log(double _y);
 extern double   log10(double _x);
 extern double   modf(double _x, double *_pint);
@@ -21,8 +30,11 @@ extern double   pow(double _x, double _y);
 extern double   sin(double _x);
 extern double   sinh(double _x);
 extern double   sqrt(double _x);
+extern float    sqrtf(float);
 extern double   tan(double _x);
 extern double   tanh(double _x);
+extern double   round(double x);
+extern long double roundl  (long double x);
 
 #define M_E             2.7182818284590452354
 #define M_LOG2E         1.4426950408889634074
diff --git a/programs/develop/ktcc/trunk/samples/tinygl/.vscode/c_cpp_properties.json b/programs/develop/ktcc/trunk/samples/tinygl/.vscode/c_cpp_properties.json
deleted file mode 100644
index 44ae3741a2..0000000000
--- a/programs/develop/ktcc/trunk/samples/tinygl/.vscode/c_cpp_properties.json
+++ /dev/null
@@ -1,17 +0,0 @@
-{
-    "configurations": [
-        {
-            "name": "Linux",
-            "includePath": [
-                "${workspaceFolder}/*",
-                "/home/max/projects/kolibri-svn/programs/develop/ktcc/trunk/libc/include"
-            ],
-            "defines": [],
-            "compilerPath": "/usr/bin/clang",
-            "cStandard": "c17",
-            "cppStandard": "c++14",
-            "intelliSenseMode": "clang-x64"
-        }
-    ],
-    "version": 4
-}
\ No newline at end of file