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Cause the cmake include dirs to also have ${CMAKE_INSTALL_INCLUDEDIR}/json-c, so downstream packages that use cmake to link against json-c can choose whether to include headers as just e.g. #include <json_object.h>, if they care to do so.

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Update the README to better explain this, and make a few other tweaks.
This commit is contained in:
Eric Haszlakiewicz
2021-12-22 02:52:37 +00:00
parent 2d2382d709
commit a5c2e11460
2 changed files with 32 additions and 8 deletions
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2
CMakeLists.txt
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@@ -503,7 +503,7 @@ install(TARGETS ${CMAKE_TARGETS}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ${CMAKE_INSTALL_INCLUDEDIR}/json-c
)
install(EXPORT ${PROJECT_NAME}-targets

38
README.md
View File

@@ -16,6 +16,17 @@
JSON-C - A JSON implementation in C <a name="overview"></a>
-----------------------------------
JSON-C implements a reference counting object model that allows you to easily
construct JSON objects in C, output them as JSON formatted strings and parse
JSON formatted strings back into the C representation of JSON objects.
It aims to conform to [RFC 7159](https://tools.ietf.org/html/rfc7159).
Skip down to [Using json-c](#using)
or check out the [API docs](https://json-c.github.io/json-c/),
if you already have json-c installed and ready to use.
Home page for json-c: https://github.com/json-c/json-c/wiki
Build Status
* [AppVeyor Build](https://ci.appveyor.com/project/hawicz/json-c) ![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/github/json-c/json-c?branch=master&svg=true)
* [Travis Build](https://travis-ci.org/json-c/json-c) ![Travis Build Status](https://travis-ci.org/json-c/json-c.svg?branch=master)
@@ -23,15 +34,11 @@ Build Status
Test Status
* [Coveralls](https://coveralls.io/github/json-c/json-c?branch=master) [![Coverage Status](https://coveralls.io/repos/github/json-c/json-c/badge.svg?branch=master)](https://coveralls.io/github/json-c/json-c?branch=master)
JSON-C implements a reference counting object model that allows you to easily
construct JSON objects in C, output them as JSON formatted strings and parse
JSON formatted strings back into the C representation of JSON objects.
It aims to conform to [RFC 7159](https://tools.ietf.org/html/rfc7159).
Building on Unix with `git`, `gcc` and `cmake` <a name="buildunix"></a>
--------------------------------------------------
Home page for json-c: https://github.com/json-c/json-c/wiki
If you already have json-c installed, see [Linking to `libjson-c`](#linking)
for how to build and link your program against it.
### Prerequisites: <a name="installprereq"></a>
@@ -220,14 +227,31 @@ CFLAGS += $(shell pkg-config --cflags json-c)
LDFLAGS += $(shell pkg-config --libs json-c)
```
Without `pkgconfig`, you would do something like this:
Without `pkgconfig`, you might do something like this:
```make
JSON_C_DIR=/path/to/json_c/install
CFLAGS += -I$(JSON_C_DIR)/include/json-c
# Or to use lines like: #include <json-c/json_object.h>
#CFLAGS += -I$(JSON_C_DIR)/include
LDFLAGS+= -L$(JSON_C_DIR)/lib -ljson-c
```
If your project uses cmake:
* Add to your CMakeLists.txt file:
```cmake
find_package(json-c CONFIG)
target_link_libraries(${PROJECT_NAME} PRIVATE json-c::json-c)
```
* Then you might run in your project:
```sh
cd build
cmake -DCMAKE_PREFIX_PATH=/path/to/json_c/install/lib64/cmake ..
```
Using json-c <a name="using">
------------