[LEDE-DEV] [PATCH procd] upgraded: cmake: Find and include uloop.h

[Matthias Schiffer]

On 05/31/2017 11:02 PM, Florian Fainelli wrote:
> Add a CMake FIND_PATH and INCLUDE_DIRECTORIES searching for
> libubox/uloop.h. Some external toolchains which do not include standard
> locations would fail to find the header otherwise.
> 
> Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
> ---
>  upgraded/CMakeLists.txt | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/upgraded/CMakeLists.txt b/upgraded/CMakeLists.txt
> index 00d8ce575c25..fd7d6bb58b78 100644
> --- a/upgraded/CMakeLists.txt
> +++ b/upgraded/CMakeLists.txt
> @@ -1,6 +1,8 @@
>  cmake_minimum_required(VERSION 2.6)
>  
>  PROJECT(upgraded C)
> +FIND_PATH(ubox_include_dir libubox/uloop.h)
> +INCLUDE_DIRECTORIES(${ubox_include_dir})
>  ADD_DEFINITIONS(-Os -ggdb -Wall -Werror --std=gnu99 -Wmissing-declarations)
>  ADD_EXECUTABLE(upgraded upgraded.c ../watchdog.c)
>  TARGET_LINK_LIBRARIES(upgraded ubox)

Another option would be to use the CMake module I wrote for my GSoC project
last year:

https://gitlab.com/neoraider/ece/blob/master/cmake/Findubox.cmake

With this, find_package(ubox REQUIRED) can be used to get the
include/library definitions, while still allowing to override the values on
the cmake cmdline or using ccmake, in case CMake can't find the right paths
automatically.

The repo also contains reusable CMake modules for ubus and libjson-c.

Matthias

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