Invalid convertion in int main function

[vasilikisdr]

While installing the sar_tools I get that
dateconv.cc: In function ‘int main(int, char**)’:
error: invalid conversion from ‘char*’ to ‘size_t’ {aka ‘long unsigned int’} [-fpermissive]
51 | strftime(indatestring,informat,&tm_tmp);
| ^~~~~~~~
| |
| char*
dateconv.cc:51:34: error: cannot convert ‘tm*’ to ‘const char*’
51 | strftime(indatestring,informat,&tm_tmp);
| ^~~~~~~
| |
| tm*
In file included from /usr/include/pthread.h:14,
from /usr/lib/gcc/x86_64-pc-cygwin/9.3.0/include/c++/x86_64-pc-cygwin/bits/gthr-default.h:35,
from /usr/lib/gcc/x86_64-pc-cygwin/9.3.0/include/c++/x86_64-pc-cygwin/bits/gthr.h:148,
from /usr/lib/gcc/x86_64-pc-cygwin/9.3.0/include/c++/ext/atomicity.h:35,
from /usr/lib/gcc/x86_64-pc-cygwin/9.3.0/include/c++/bits/ios_base.h:39,
from /usr/lib/gcc/x86_64-pc-cygwin/9.3.0/include/c++/ios:42,
from /usr/lib/gcc/x86_64-pc-cygwin/9.3.0/include/c++/ostream:38,
from /usr/lib/gcc/x86_64-pc-cygwin/9.3.0/include/c++/iostream:39,
from dateconv.cc:9:
/usr/include/time.h:67:49: note: initializing argument 3 of ‘size_t strftime(char*, size_t, const char*, const tm*)’
67 | size_t _maxsize, const char *__restrict _fmt,
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~
make: *** [: dateconv.o] Error 1

and it doesn't run the make command for the sar_tools.
Does anyone know how to fix it?