[FS#3704] libubus ubus_invoke function undefined reference to

[OpenWrt Bugs]

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User who did this - hansdals (hansdals) 

Attached to Project - OpenWrt/LEDE Project
Summary - libubus ubus_invoke function undefined reference to
Task Type - Bug Report
Category - Packages
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Supply the following if possible:
 - Device problem occurs on
 - Software versions of OpenWrt/LEDE release, packages, etc.
 - Steps to reproduce
   
I'm compiling custom packages that I can unfortunately not share, but the problem is as follows:

This is more a suggestion than a bug report. 
I sometimes get undefined reference to ubus_invoke in libfoo.so.
I have tried to replicate the linking error with a simple c program, but it compiles fine (on my ubuntu machine with latest libubus compiled from source today)..

#include 
#include 

int main()
{
        ubus_invoke(NULL, 0, NULL, NULL, NULL, NULL, 0);
        return 0;
}
gcc test.c -lubus

I think the problem here is that the ubus CMakeLists.txt file has LIB_SOURCES libubus.c (and more), but the definition of ubus_invoke() is in libubus.h. Causing libubus.so to not have that symbol/function.
So if I in a main program call a function in libfoo that calls ubus_invoke, then I can end up with a undefined reference to ubus_invoke ?

Suggest moving the definitions to the .c file , or add libubus.h to LIB_SOURCES

again I'm sorry I couldn't replicate the problem.


More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3704

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