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json_pointer: allow the feature to be disabled

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Some users may not want to included it in their build/system. So allow a
cmake symbol to disable it.

A user can do 'cmake -DDISABLE_JSON_POINTER=ON <json_c_root_dir>' and
disable the json_pointer functionality. That saves about 17 KB (on an
x86_64) machine. This may be useful on smaller embedded systems; even
though the saving would be fewer kilobytes.

One thing that also needs to change a bit, is that the 'json.h' be
autogenerated via cmake, in order to conditionally include that
"json_pointer.h" file.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
This commit is contained in:
Alexandru Ardelean
2021-04-16 09:42:07 +03:00
parent 1f8b64f62c
commit 8abeebc9b2
4 changed files with 18 additions and 5 deletions
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@@ -70,6 +70,7 @@
# It's not good practice to build directly in the source tree
# but ignore cmake auto-generated files anyway:
/json_config.h
/json.h
/config.h
/json-c.pc
/Makefile