OLED DISPLAY: "fatal error" building with ./build_project.sh

albert

Hi everyone, I am switching to using scripts to have a better workflow: github > VS > BELA.

I adapted the code found here to work with an SSD1306 display. Everything works when I use the IDE. However, when I use the script ./build_project.sh via terminal, with exactly the same code downloaded from the IDE, a fatal error appears:

Building and running project...
Building linux-i2c.c...
/root/Bela/projects/ab_oled/u8g2/common/linux-i2c.c:11:10: fatal error: 'u8x8.h' file not found
#include <u8x8.h>
         ^
1 error generated.
Makefile:518: recipe for target '/root/Bela/projects/ab_oled/build/u8g2/common/linux-i2c.o' failed
make: *** [/root/Bela/projects/ab_oled/build/u8g2/common/linux-i2c.o] Error 1
Connection to 192.168.7.2 closed.

Why u8x8.h is missing? (I find it in u8g2/csrc/u8x8.h)
What am I missing?

Thank you for the help
a

giuliomoro

when building from the IDE, the options in Make parameters are passed to make. These are:

CFLAGS=-I$(PROJECT_DIR)/u8g2/csrc CPPFLAGS=-I$(PROJECT_DIR)/u8g2/csrc

You'll need some string escaping magic to pass them to build_project.sh, but you can do so via the -m command line option.
Maybe this will work:
./build_project.sh -m 'CFLAGS=-I\$(PROJECT_DIR)/u8g2/csrc CPPFLAGS=-I\$(PROJECT_DIR)/u8g2/csrc'

If it doesn't, either you find the appropriate combination of quotes and escapes so that the $ reach make so that $(PROJECT_DIR) gets expanded by make itself, or replace the whole \$(PROJECT_DIR) with the hardcoded path to your project on the board (e.g.: /root/Bela/projects/O2O)