View Compilation Error

0_0_37178548_22753.c:1:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
 include<stdio.h>
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/_mingw.h:282:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/crtdefs.h:10,
                 from GCC4.9.2/x86_64-w64-mingw32/include/math.h:13,
                 from 0_0_37178548_22753.c:2:
GCC4.9.2/x86_64-w64-mingw32/include/vadefs.h:29:11: error: unknown type name '__gnuc_va_list'
   typedef __gnuc_va_list va_list;
           ^
0_0_37178548_22753.c: In function 'main':
0_0_37178548_22753.c:6:50: error: 'EOF' undeclared (first use in this function)
     while(scanf("%lf%lf%lf%lf",&x1,&y1,&x2,&y2)!=EOF)
                                                  ^
0_0_37178548_22753.c:6:50: note: each undeclared identifier is reported only once for each function it appears in