cu_varint warnings and lwout_twkb.c warnings

[robe]

cu_varint.c
cu_varint.c: In function 'do_test_u32_varint':
cu_varint.c:30:2: warning: implicit declaration of function 'varint_u32_encoded_size' [-Wimplicit-function-declaration]
  size = varint_u32_encoded_size(nr);
  ^ 
cu_varint.c:35:2: warning: implicit declaration of function 'varint_u32_encode_buf' [-Wimplicit-function-declaration]
  varint_u32_encode_buf(nr, buf);
  ^
cu_varint.c: In function 'do_test_s32_varint':
cu_varint.c:50:2: warning: implicit declaration of function 'varint_s32_encoded_size' [-Wimplicit-function-declaration]
  size = varint_s32_encoded_size(nr);
  ^
cu_varint.c:55:2: warning: implicit declaration of function 'varint_s32_encode_buf' [-Wimplicit-function-declaration]
  varint_s32_encode_buf(nr, buf);
  ^
cu_varint.c: In function 'do_test_u64_varint':
cu_varint.c:70:2: warning: implicit declaration of function 'varint_u64_encoded_size' [-Wimplicit-function-declaration]
  size = varint_u64_encoded_size(nr);
  ^
cu_varint.c:75:2: warning: implicit declaration of function 'varint_u64_encode_buf' [-Wimplicit-function-declaration]
  varint_u64_encode_buf(nr, buf);
  ^
cu_varint.c: In function 'do_test_s64_varint':
cu_varint.c:90:2: warning: implicit declaration of function 'varint_s64_encoded_size' [-Wimplicit-function-declaration]
  size = varint_s64_encoded_size(nr);
  ^
cu_varint.c:95:2: warning: implicit declaration of function 'varint_s64_encode_buf' [-Wimplicit-function-declaration]
  varint_s64_encode_buf(nr, buf);
  ^
cu_varint.c: In function 'test_varint':
cu_varint.c:154:2: warning: this decimal constant is unsigned only in ISO C90 [enabled by default]
  do_test_s32_varint(-2147483648, 5, "FFFFFFFF0F");
  ^

[robe]

before the change r12871 I made to get rid of varint.h

used to give these warnings:

In file included from cu_varint.c:23:0:
../varint.h:62:1: warning: no previous prototype for 'varint_u32_encoded_size' [-Wmissing-prototypes]
 varint_u32_encoded_size(uint32_t val)
 ^
../varint.h:75:1: warning: no previous prototype for 'varint_u32_encode_buf' [-Wmissing-prototypes]
 varint_u32_encode_buf(uint32_t val, uint8_t *buf)
 ^
../varint.h:82:1: warning: no previous prototype for 'varint_s32_encoded_size' [-Wmissing-prototypes]
 varint_s32_encoded_size(int32_t val)
 ^
../varint.h:96:1: warning: no previous prototype for 'varint_s32_encode_buf' [-Wmissing-prototypes]
 varint_s32_encode_buf(int32_t val, uint8_t *buf)
 ^
../varint.h:104:1: warning: no previous prototype for 'varint_s64_encoded_size' [-Wmissing-prototypes]
 varint_s64_encoded_size(int64_t val)
 ^
../varint.h:118:1: warning: no previous prototype for 'varint_s64_encode_buf' [-Wmissing-prototypes]
 varint_s64_encode_buf(int64_t val, uint8_t *buf)
 ^
../varint.h:127:1: warning: no previous prototype for 'varint_u64_encoded_size' [-Wmissing-prototypes]
 varint_u64_encoded_size(uint64_t val)
 ^
../varint.h:140:1: warning: no previous prototype for 'varint_u64_encode_buf' [-Wmissing-prototypes]
 varint_u64_encode_buf(uint64_t val, uint8_t *buf)
 ^
cu_varint.c: In function 'test_varint':
cu_varint.c:156:2: warning: this decimal constant is unsigned only in ISO C90 [enabled by default]
  do_test_s32_varint(-2147483648, 5, "FFFFFFFF0F");
  ^

[robe]

In file included from lwout_twkb.c:13:0:
varint.h:62:1: warning: no previous prototype for 'varint_u32_encoded_size' [-Wmissing-prototypes]
 varint_u32_encoded_size(uint32_t val)
 ^
varint.h:75:1: warning: no previous prototype for 'varint_u32_encode_buf' [-Wmissing-prototypes]
 varint_u32_encode_buf(uint32_t val, uint8_t *buf)
 ^
varint.h:82:1: warning: no previous prototype for 'varint_s32_encoded_size' [-Wmissing-prototypes]
 varint_s32_encoded_size(int32_t val)
 ^
varint.h:96:1: warning: no previous prototype for 'varint_s32_encode_buf' [-Wmissing-prototypes]
 varint_s32_encode_buf(int32_t val, uint8_t *buf)
 ^
varint.h:104:1: warning: no previous prototype for 'varint_s64_encoded_size' [-Wmissing-prototypes]
 varint_s64_encoded_size(int64_t val)
 ^
varint.h:118:1: warning: no previous prototype for 'varint_s64_encode_buf' [-Wmissing-prototypes]
 varint_s64_encode_buf(int64_t val, uint8_t *buf)
 ^
varint.h:127:1: warning: no previous prototype for 'varint_u64_encoded_size' [-Wmissing-prototypes]
 varint_u64_encoded_size(uint64_t val)
 ^
varint.h:140:1: warning: no previous prototype for 'varint_u64_encode_buf' [-Wmissing-prototypes]
 varint_u64_encode_buf(uint64_t val, uint8_t *buf)

[strk]

Should be fixed by r12874