Including "global" Header File to private Libraries

atsteich · November 6, 2018, 2:58pm

I have written some private libraries (each has one .h and one .cpp file) , and placed them in the lib folder, in the way it is suggested in the README. So far everything works fine, i can include all the headers without compiling errors.

Now, the tricky part: in each of this libraries i need to access to variables specified in another (global) config.h, in which i have specified for example the used Pins of my chip. When i include this config.h (that is also placed in the lib folder) in the libraries, i can’t use the defined values, although I have included the config.h file…

WHY?! and how to get around this?? I simply get the error that the variables are not defined in this scope…

I have no idea what the problem is here, and would be thankful for some help!

maxgerhardt · November 6, 2018, 3:06pm

Please upload a minimal example to demonstrate the error.

atsteich · November 6, 2018, 3:27pm

i can’t upload the folder structure here, but i have copied a sample project to Dropbox

atsteich · November 8, 2018, 7:25am

I found a solution: It seems like the name “config” is the problem. as soon I rename config.h to any other name, everything works as expected…

mrred128 · November 8, 2018, 3:59pm

That’s interesting. I think I have the same problem in one of my other projects…

atsteich · November 10, 2018, 9:54pm

Did renaming solved the problem for you too? I opened a bug report on subfolder of lib mustn't be named *config* · Issue #1914 · platformio/platformio-core · GitHub

mrred128 · November 11, 2018, 8:44pm

I reconfigured that project to get around using a config.h using defs in the platform.ini defs. I was scratching my head over this one for some time. I just never mad the connection you did.

I will create a new project later to confirm.

atsteich · November 12, 2018, 8:16am

I also just found the “solution” , because i was creating a sample project for the bug report, (with names lib1 and lib2) and suddenly everything worked fine

ivankravets · November 21, 2018, 11:13pm

This is a bug, fixed in

github.com/platformio/platformio-core

subfolder of lib mustn't be named config

opened 09:17AM - 07 Nov 18 UTC

closed 03:44PM - 23 Mar 19 UTC

atsteich

bug

- [ ] **PlatformIO Core**. If you’ve found a bug, please provide an infor…mation below. *You can erase any parts of this template not applicable to your Issue.* ------------------------------------------------------------------ ### Configuration **Ubuntu 17.04 system**: **3.6.2a2** ### I have the following folder structure, and everything is working fine. ``` |-- Projectfolder |-- include |-- README |-- lib |-- lib1 |-- src |-- lib1.h |-- lib1.cpp |-- lib2 |-- src |-- lib2.h |-- lib2.cpp |-- src |-- main.cpp |-- platformio.ini ``` code of lib1.h: ```void func1();``` code of lib1.cpp: ``` void func1(){ //doanythinghere } ``` code of lib2.h: `void func2();` code of lib2.cpp: ``` #include <lib1.h> void func2(){ func1(); } ``` code of main.cpp ``` #include <lib2.h> void setup(){ } void loop(){ func2(); } ``` BUT: As soon I am renaming ``` lib1 -> config lib1.h -> config.h lib1.cpp -> config.cpp ``` I get an Compile Error: lib/lib2/src/lib2.cpp:4:11: error: 'func1' was not declared in this scope If for any reason this is not a bug but a feature, it should be mentioned in the Readme, i spent almost a day on finding out that the problem is the name of the lib... **The content of `platformio.ini`:** ``` [env:featheresp32] platform = espressif32 board = featheresp32 framework = arduino ```