Forum: System Workbench for STM32

compiling project for stm32f103 with external library

Posted by str4t0m on 2018-08-31 14:54

Hi,
I’m trying to add the canFestival Stack to my project, but I’m not able to compile successfully.
I’ve compiled the canFestival library and then added it as library, but now I get the following error:
“cannot find -l-lm”

I’m working on ubuntu 18.04.
Has anyone an idea how I could resolve that issue

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Posted by dautrevaux on 2018-09-01 17:16 France

Hi,

Looks like you’ve added a reference to the math library by incorrectly providing “-lm” in the add library dialog, instead of providing just “m”.

Anyway specifying this should not be needed, as the math library is usually automatically added to the link command line.

Bernard (Ac6)

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Posted by str4t0m on 2018-09-04 07:48

Hi,
unfortunately I still have a problem left.
I do get undefined reference errors for all calls to the libraries.

- The library has the name libcanfestival.a.
- I’ve added “canfestival” as library
- I’ve added the folder of the libcanfestival.a file as library search path.
- I’ve added all the folders with headerfiles from the library as include paths

The linker command is “-mcpu=cortex-m3 -mthumb -mfloat-abi=soft -L/XXXX/canfestival-3-asc/bin -T”/XXXX/LinkerScript.ld” -Wl,-Map=output.map -Wl,--gc-sections”

2018-09-04_console_output_undefined_reference.txt (91.21 Kb)
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Posted by dautrevaux on 2018-09-04 14:12 France

Hi,

I don’t see the “-lcanfestival” option in your linked command line... Where did you add “canfestival” as a library?

Bernard (Ac6)

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