Issue: Platformio CI throws a lot of "stray in program" on linking time, when using --lib="."

alexfbp · January 13, 2019, 6:25pm

Platformio CI throws a lot of "stray in program" on linking time, just in Travis, not locally

opened 06:25PM - 13 Jan 19 UTC

closed 01:37AM - 21 Jan 19 UTC

[GuruxDLMS.c](https://github.com/Gurux/GuruxDLMS.c) is a C library to access DLM…S/COSEM compliant meters. They bring some examples for Arduino in the Arduino_IDE folder. In our fork we initially created a project per folder (master branch) and in each folder, the platformio.ini file has as `lib_deps` the URL of the same repo, and this worked. But this focus induces to PlatformIO to `git clone` every time, so, trying alternatives to use the same folder...: 1. well by specifying the parent library folder in `lib_extra_dirs` ( [platformio.ini](https://github.com/AsharaStudios/GuruxDLMS.c/blob/e66e9186577c52a768c1ee497e1b6fe1a286f3b4/Arduino_IDE/client/platformio.ini) - [job 38.2](https://travis-ci.com/AsharaStudios/GuruxDLMS.c/jobs/167645562) ) - as `lib_extra_dirs` should be a path to a folder with libraries, why not to use the folder containing the cloned repo... 2. well by creating sym-links in the lib folder of both PlatformIO projects ( [commit 94091cd](https://github.com/AsharaStudios/GuruxDLMS.c/commit/94091cd436971b0c400fa1ee2aac58b80f308f73) - [build 9](https://travis-ci.com/AsharaStudios/GuruxDLMS.c/builds/95945558) ) 3. well by specifying `--lib="."` when running `platformio ci`, as suggested in the second template inside the generated .travis.yml ( [branch platformioUnify](https://github.com/AsharaStudios/GuruxDLMS.c/commits/platformioUnify) - [job 59.2](https://travis-ci.com/AsharaStudios/GuruxDLMS.c/jobs/170054751) ) because as it is, the project must be considered as a lbrary. ...gives you in Travis CI a LOT of errors at linking time ( [log for case 1](https://travis-ci.com/AsharaStudios/GuruxDLMS.c/jobs/167645562#L1517) - [log for case 2](https://travis-ci.com/AsharaStudios/GuruxDLMS.c/jobs/167519706#L643) - [log for case 3](https://travis-ci.com/AsharaStudios/GuruxDLMS.c/jobs/170054751#L1515) ) BUT, not if you clone the repo and do the same steps as in .travis.yml, PlatformIO section. ``` ... .pioenvs/mega/libd43/libGuruxDLMS.c:2:1: error: stray '`' in program / 1547397696 0 0 0 13998 ` ^ ... ^ .pioenvs/mega/libd43/libGuruxDLMS.c:3:3: error: stray '\2' in program ... var_toDouble var_print va_print // 40 ` ^ .pioenvs/mega/libd43/libGuruxDLMS.c:3:3: error: stray '\202' in program .pioenvs/mega/libd43/libGuruxDLMS.c:3:5: warning: null character(s) ignored � 7V 7V 7V 7V 7V 7V 7V 7V 7V 7V 7V 7V 7V 7V 7V ``` ~~When you clone the repo locally those errors don't appear (Or at least by me, I'm using elementary OS 0.4, Ubuntu 16.04 based, zsh 5.1.1, platformio v3.6, pip v18.1, vscode v1.30.2)~~ (don't know why it keeps compiling in the original folder I was working, cloned in other folder and failed) Does anybody know how to remove those warnings? The only way that the projects compile in Travis (at time and with my tested .travis.yml) is none of the mentioned in the list, just in the introduction of this issue: by specifying the URL of the same repo in platformio.ini `lib_deps`

ivankravets · January 30, 2019, 7:00pm

Have you resolved this issue?

alexfbp · January 30, 2019, 10:01pm

By a workaround, @ivankravets:
Instead of passing --lib="." to platformio ci in .travis.yml (.travis.yml@4a9fc29), I added the installation step platformio lib -g install file://$(pwd) (.travis.yml@d08982b)

alexfbp · February 2, 2019, 3:51am

A first, not so better, workaround tried with sucess, was when every example folder was considered a PlatformIO example (please check Arduino_IDE folder in the commit 56787d5c4c9 of AsharaStudios/GuruxDLMS.c) and in all of them, the same URL of the repo itself, was added to lib_deps in their respective platformio.ini, but that implied that PlatformIO was going to clone the repo again in .piolibdeps/, which doesn’t sound so clever considering that the library is placed in a parent folder.

But any try to consider the project as a library has failed (see travis logs linked in the first comment of the mentioned GitHub Issue).

By that, I changed the title from “Platformio CI throws a lot of “stray in program” on linking time, just in Travis, not locally”