static assert avr-gcc bugs

gistfile1.txt

    #include <assert.h>
     
    static_assert((sizeof(char) == sizeof(long)),"Please use -fshort-enums to compile this source");
     
    int main()
    {
    	return 0;
    }
    
    
[arch@arch tmp]$ nano main.c
[arch@arch tmp]$ avr-gcc main.c 
main.c:3:19: error: expected declaration specifiers or '...' before '(' token
     static_assert((sizeof(char) == sizeof(long)),"Please use -fshort-enums to compile this source");
                   ^
main.c:3:50: error: expected declaration specifiers or '...' before string constant
     static_assert((sizeof(char) == sizeof(long)),"Please use -fshort-enums to compile this source");
                                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[arch@arch tmp]$ gcc main.c 
In file included from main.c:1:0:
main.c:3:5: error: static assertion failed: "Please use -fshort-enums to compile this source"
     static_assert((sizeof(char) == sizeof(long)),"Please use -fshort-enums to compile this source");
     ^


[arch@arch tmp]$ gcc main.c -E
# 1 "main.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 31 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 32 "<command-line>" 2
# 1 "main.c"
# 1 "/usr/include/assert.h" 1 3 4
# 35 "/usr/include/assert.h" 3 4
# 1 "/usr/include/features.h" 1 3 4
# 368 "/usr/include/features.h" 3 4
# 1 "/usr/include/sys/cdefs.h" 1 3 4
# 415 "/usr/include/sys/cdefs.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 416 "/usr/include/sys/cdefs.h" 2 3 4
# 369 "/usr/include/features.h" 2 3 4
# 392 "/usr/include/features.h" 3 4
# 1 "/usr/include/gnu/stubs.h" 1 3 4
# 10 "/usr/include/gnu/stubs.h" 3 4
# 1 "/usr/include/gnu/stubs-64.h" 1 3 4
# 11 "/usr/include/gnu/stubs.h" 2 3 4
# 393 "/usr/include/features.h" 2 3 4
# 36 "/usr/include/assert.h" 2 3 4
# 64 "/usr/include/assert.h" 3 4




# 67 "/usr/include/assert.h" 3 4
extern void __assert_fail (const char *__assertion, const char *__file,
      unsigned int __line, const char *__function)
     __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));


extern void __assert_perror_fail (int __errnum, const char *__file,
      unsigned int __line, const char *__function)
     __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));




extern void __assert (const char *__assertion, const char *__file, int __line)
     __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));



# 2 "main.c" 2

    _Static_assert
# 3 "main.c"
                ((sizeof(char) == sizeof(long)),"Please use -fshort-enums to compile this source");

    int main()
    {
     return 0;
    }

    
    
    
    
    
 [arch@arch tmp]$ avr-gcc main.c -E
# 1 "main.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "main.c"
# 1 "/usr/avr/include/assert.h" 1 3
# 65 "/usr/avr/include/assert.h" 3
# 1 "/usr/avr/include/stdlib.h" 1 3
# 48 "/usr/avr/include/stdlib.h" 3
# 1 "/usr/lib/gcc/avr/6.2.0/include/stddef.h" 1 3 4
# 216 "/usr/lib/gcc/avr/6.2.0/include/stddef.h" 3 4

# 216 "/usr/lib/gcc/avr/6.2.0/include/stddef.h" 3 4
typedef unsigned int size_t;
# 328 "/usr/lib/gcc/avr/6.2.0/include/stddef.h" 3 4
typedef int wchar_t;
# 49 "/usr/avr/include/stdlib.h" 2 3
# 70 "/usr/avr/include/stdlib.h" 3
typedef struct {
 int quot;
 int rem;
} div_t;


typedef struct {
 long quot;
 long rem;
} ldiv_t;


typedef int (*__compar_fn_t)(const void *, const void *);
# 116 "/usr/avr/include/stdlib.h" 3
extern void abort(void) __attribute__((__noreturn__));




extern int abs(int __i) __attribute__((__const__));
# 130 "/usr/avr/include/stdlib.h" 3
extern long labs(long __i) __attribute__((__const__));
# 153 "/usr/avr/include/stdlib.h" 3
extern void *bsearch(const void *__key, const void *__base, size_t __nmemb,
       size_t __size, int (*__compar)(const void *, const void *));







extern div_t div(int __num, int __denom) __asm__("__divmodhi4") __attribute__((__const__));





extern ldiv_t ldiv(long __num, long __denom) __asm__("__divmodsi4") __attribute__((__const__));
# 185 "/usr/avr/include/stdlib.h" 3
extern void qsort(void *__base, size_t __nmemb, size_t __size,
    __compar_fn_t __compar);
# 218 "/usr/avr/include/stdlib.h" 3
extern long strtol(const char *__nptr, char **__endptr, int __base);
# 252 "/usr/avr/include/stdlib.h" 3
extern unsigned long strtoul(const char *__nptr, char **__endptr, int __base);
# 264 "/usr/avr/include/stdlib.h" 3
extern long atol(const char *__s) __attribute__((__pure__));
# 276 "/usr/avr/include/stdlib.h" 3
extern int atoi(const char *__s) __attribute__((__pure__));
# 288 "/usr/avr/include/stdlib.h" 3
extern void exit(int __status) __attribute__((__noreturn__));
# 300 "/usr/avr/include/stdlib.h" 3
extern void *malloc(size_t __size) __attribute__((__malloc__));






extern void free(void *__ptr);




extern size_t __malloc_margin;




extern char *__malloc_heap_start;




extern char *__malloc_heap_end;






extern void *calloc(size_t __nele, size_t __size) __attribute__((__malloc__));
# 348 "/usr/avr/include/stdlib.h" 3
extern void *realloc(void *__ptr, size_t __size) __attribute__((__malloc__));

extern double strtod(const char *__nptr, char **__endptr);

extern double atof(const char *__nptr);
# 374 "/usr/avr/include/stdlib.h" 3
extern int rand(void);



extern void srand(unsigned int __seed);






extern int rand_r(unsigned long *__ctx);
# 419 "/usr/avr/include/stdlib.h" 3
extern __inline__ __attribute__((__gnu_inline__))
char *itoa (int __val, char *__s, int __radix)
{
    if (!__builtin_constant_p (__radix)) {
 extern char *__itoa (int, char *, int);
 return __itoa (__val, __s, __radix);
    } else if (__radix < 2 || __radix > 36) {
 *__s = 0;
 return __s;
    } else {
 extern char *__itoa_ncheck (int, char *, unsigned char);
 return __itoa_ncheck (__val, __s, __radix);
    }
}
# 464 "/usr/avr/include/stdlib.h" 3
extern __inline__ __attribute__((__gnu_inline__))
char *ltoa (long __val, char *__s, int __radix)
{
    if (!__builtin_constant_p (__radix)) {
 extern char *__ltoa (long, char *, int);
 return __ltoa (__val, __s, __radix);
    } else if (__radix < 2 || __radix > 36) {
 *__s = 0;
 return __s;
    } else {
 extern char *__ltoa_ncheck (long, char *, unsigned char);
 return __ltoa_ncheck (__val, __s, __radix);
    }
}
# 507 "/usr/avr/include/stdlib.h" 3
extern __inline__ __attribute__((__gnu_inline__))
char *utoa (unsigned int __val, char *__s, int __radix)
{
    if (!__builtin_constant_p (__radix)) {
 extern char *__utoa (unsigned int, char *, int);
 return __utoa (__val, __s, __radix);
    } else if (__radix < 2 || __radix > 36) {
 *__s = 0;
 return __s;
    } else {
 extern char *__utoa_ncheck (unsigned int, char *, unsigned char);
 return __utoa_ncheck (__val, __s, __radix);
    }
}
# 549 "/usr/avr/include/stdlib.h" 3
extern __inline__ __attribute__((__gnu_inline__))
char *ultoa (unsigned long __val, char *__s, int __radix)
{
    if (!__builtin_constant_p (__radix)) {
 extern char *__ultoa (unsigned long, char *, int);
 return __ultoa (__val, __s, __radix);
    } else if (__radix < 2 || __radix > 36) {
 *__s = 0;
 return __s;
    } else {
 extern char *__ultoa_ncheck (unsigned long, char *, unsigned char);
 return __ultoa_ncheck (__val, __s, __radix);
    }
}
# 581 "/usr/avr/include/stdlib.h" 3
extern long random(void);




extern void srandom(unsigned long __seed);







extern long random_r(unsigned long *__ctx);
# 640 "/usr/avr/include/stdlib.h" 3
extern char *dtostre(double __val, char *__s, unsigned char __prec,
       unsigned char __flags);
# 657 "/usr/avr/include/stdlib.h" 3
extern char *dtostrf(double __val, signed char __width,
                     unsigned char __prec, char *__s);
# 676 "/usr/avr/include/stdlib.h" 3
extern int atexit(void (*)(void));
extern int system (const char *);
extern char *getenv (const char *);
# 66 "/usr/avr/include/assert.h" 2 3
# 104 "/usr/avr/include/assert.h" 3
extern void __assert(const char *__func, const char *__file,
       int __lineno, const char *__sexp);
# 2 "main.c" 2

    
# 3 "main.c"
   static_assert((sizeof(char) == sizeof(long)),"Please use -fshort-enums to compile this source");

    int main()
    {
     return 0;
    }