error: implicit declaration of function '_strtoi64'

[yodapotatofly]

Hello all !
Not really sure if it is a real issue or if I'm just dumb. (first time I'm using CMake)

I am trying to use json-c in a windows project but impossible to make it.
I have included the whole repo in my project folder and I am using cmake with MinGW generator
Cmake works fine, but at make, got compilation errors :

D:\ ... \build>make
Scanning dependencies of target json-c
[  5%] Building C object json-c/CMakeFiles/json-c.dir/arraylist.c.obj
[ 11%] Building C object json-c/CMakeFiles/json-c.dir/debug.c.obj
[ 17%] Building C object json-c/CMakeFiles/json-c.dir/json_c_version.c.obj
[ 23%] Building C object json-c/CMakeFiles/json-c.dir/json_object.c.obj
[ 29%] Building C object json-c/CMakeFiles/json-c.dir/json_object_iterator.c.obj
[ 35%] Building C object json-c/CMakeFiles/json-c.dir/json_pointer.c.obj
[ 41%] Building C object json-c/CMakeFiles/json-c.dir/json_tokener.c.obj
[ 47%] Building C object json-c/CMakeFiles/json-c.dir/json_util.c.obj
D:\ ... \json-c\json_util.c: In function 'json_parse_int64':
D:\ ... \json-c\json_util.c:44:19: error: implicit declaration of function '_strtoi64'; did you mean '_stati64'? [-Werror=implicit-function-declaration]
 #  define strtoll _strtoi64
                   ^~~~~~~~~
D:\ ... \json-c\json_util.c:228:8: note: in expansion of macro  strtoll'
  val = strtoll(buf, &end, 10);
        ^~~~~~~
D:\ ... \json-c\json_util.c: In function 'json_parse_uint64':
D:\ ... \json-c\json_util.c:45:20: error: implicit declaration of function '_strtoui64'; did you mean '_stati64'? [-Werror=implicit-function-declaration]
 #  define strtoull _strtoui64
                    ^~~~~~~~~~
D:\ ... \json-c\json_util.c:245:8: note: in expansion of macro  strtoull'
  val = strtoull(buf, &end, 10);
        ^~~~~~~~
cc1.exe: all warnings being treated as errors
make[2]: *** [json-c/CMakeFiles/json-c.dir/json_util.c.obj] Erreur 1
make[1]: *** [json-c/CMakeFiles/json-c.dir/all] Erreur 2
make: *** [all] Erreur 2

[dota17]

This problem does exist and I think this is because the make of mingw is different from it in linux/gcc. I don't know if we should fully support the mingw. Or just ignore this warning?

[hawicz]

mingw isn't supported. If you're building on Windows you'll need to use VS