Fix bug involving supplemental code points that look like high surrogates

fix macro WIN32_LEAN_AND_MEAN redefined

json-c as add_subdirectory and project cmakelists.txt has add_definitions(-DWIN32_LEAN_AND_MEAN)

fix linkhash breaking -std=c89

Add support for Commodore Amiga

Explicitly handle NaN values when converting to integer

Handle NULL gracefully in json_tokener_free

json_object_get_int/int64/uint64() now sets errno to ERANGE when the source value
can't be represented in the target type.

Json objects of type double with the value NaN could cause undefined
behavior when casting double to int in `json_object_get_int`.

Fix underline bug in README

Add fuzz tests for json_object/point/array apis

Extends the coverage of fuzz tests executed in OSS-Fuzz.

Similarly to glibc's free, make json_tokener_free(NULL)
a no-op, to simplify cleanup paths.

Signed-off-by: Ján Tomko <jtomko@redhat.com>

Correct year in changelog for 0.18 release

making the definition of _LH_INLINE depending on __STDC_VERSION__, not on a specific compiler

Issue #867: disallow control characters in strict mode.

Build pkg-config for msvc as well

Handle yet another out-of-memory condition.

duplocale() can return NULL, with errno set to ENOMEM.
In this case, bail out and set the current error code to
json_tokener_error_memory.

json_tokener.h: json_tokener_parse_verbose: fix typo