UBIEN
October 31, 2022, 6:22pm
1
Sometimes libraries have a configuration file to be placed in the project folder. This is to configure the behavior without modifying the library code. I ask you for the option to specify additional folders to search for include files.
Hi @UBIEN . A formal feature request was submitted some time ago here:
opened 12:59PM - 09 Jan 15 UTC
closed 08:12PM - 11 May 16 UTC
feature request
Component: Compilation
Type: Duplicate
arduino-cli
arduino-builder
Please change Arduino IDE so it can compile library files that depend on sketch … files.
Usually project files depend on library files.
But sometimes its useful to have dependences in the other direction.
In the following example, a library file depends on a sketch file.
Here is the example's directory structure:
```
sketch1\
sketch1.ino
CustomClass.h
sketch2\
sketch2.ino
CustomClass.h
Arduino\libraries\lib_folder\
LibClass.h << LibClass.h depends on CustomClass.h
```
Each sketch has a CustomClass.h file.
The code within the customClass files is different for each sketch.
LibClass.h includes CustomClass.h
Downloaded example code here: [libClass_depend_on_sketchClass.zip](http://forum.arduino.cc/index.php?action=dlattach;topic=279427.0;attach=108978)
To compile sketch1.ino on Arduino 1.0.6 IDE, the user needs to move the corresponding CustomClass.h into lib_folder.
To compile sketch2.ino, the user needs to move that CustomClass.h into lib_folder.
Moving files in and out of libraries is dangerous and requires deleting Arduino's AppData\Local\Temp\build folder.
All the CustomClass files are moved in and out of the library every time all the sketchX.ino programs are regression tested.
Regression testing each versions of sketchX.ino will become impractical as more versions of sketchX.ino are added.
And instructing library users to move CustomClasses into the library is not very user friendly.
This is how one application describes the work around in its user guide:
https://github.com/wolfv6/keybrd/blob/master/doc/keybrd_library_user_guide.md#populate-arduinolibraries-with-keybrd-library-sym-links
If CustomClass.h is not moved into the lib_folder, Arduino 1.0.6 IDE does not find the CustomClass.h file.
Here is the verbose error message:
```
Arduino: 1.0.6 + Td: 1.20 (Windows 7), Board: "Teensy 2.0"
C:\Program Files (x86)\Arduino\hardware\tools\avr\bin\avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega32u4 -DF_CPU=16000000L -MMD -DUSB_VID=null -DUSB_PID=null -DARDUINO=106 -DTEENSYDUINO=120 -felide-constructors -std=c++0x -DUSB_HID -DLAYOUT_US_ENGLISH -IC:\Program Files (x86)\Arduino\hardware\teensy\cores\teensy -IC:\Users\wolf\Documents\Arduino\libraries\lib_folder C:\Users\wolf\AppData\Local\Temp\build5396932314268139837.tmp\main.cpp -o C:\Users\wolf\AppData\Local\Temp\build5396932314268139837.tmp\main.cpp.o
In file included from main.cpp:1:
C:\Users\wolf\Documents\Arduino\libraries\lib_folder/LibClass.h:4:25: warning: CustomClass.h: No such file or directory
In file included from main.cpp:1:
C:\Users\wolf\Documents\Arduino\libraries\lib_folder/LibClass.h:9: error: 'CustomClass' does not name a type
C:\Users\wolf\Documents\Arduino\libraries\lib_folder/LibClass.h: In member function 'void LibClass::fn()':
C:\Users\wolf\Documents\Arduino\libraries\lib_folder/LibClass.h:11: error: 'customObj' was not declared in this scope
```
Please change Arduino IDE so it can compile library files that depend on sketch files.
Arduino's reasons for intentionally not providing such a capability are explained by one of the lead tooling developers here:
https://github.com/arduino/arduino-builder/issues/15#issuecomment-145558252
system
April 29, 2023, 7:00pm
3
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.