c++ backend broken ?

[HJarausch]

I've just tried to use the C++ backend (gcc-10.2.1)
    nim cpp -d:danger --gc:arc --passC:-ffast-math ...

but I get 
    
    
    /usr/lib/nim/wrappers/linenoise/linenoise.c: In function 'void 
abAppend(abuf*, const char*, int)':
    /usr/lib/nim/wrappers/linenoise/linenoise.c:462:11: error: expected 
unqualified-id before 'new'
      462 |     char *new = realloc(ab->b,ab->len+len);
          |           ^~~
    /usr/lib/nim/wrappers/linenoise/linenoise.c:464:13: error: expected 
type-specifier before '==' token
      464 |     if (new == NULL) return;
          |             ^~
    /usr/lib/nim/wrappers/linenoise/linenoise.c:465:15: error: expected 
type-specifier before '+' token
      465 |     memcpy(new+ab->len,s,len);
    
    
    Run

**new** is a keyword in C++ and must not be used as a variable