Compilation warnings

[rmozel]

Hi,

I am new to uGFX. Although the software running as expected, I get warning messages at the compilation step:

/Users/mbp/work/stm32/toolc/ugfx_2.5/src/gos/gos_x_threads.c:10:5: warning: "GOS_NEED_X_THREADS" is not defined [-Wundef]
 #if GOS_NEED_X_THREADS
     ^
/Users/mbp/work/stm32/toolc/ugfx_2.5/src/gos/gos_x_heap.c:10:5: warning: "GOS_NEED_X_HEAP" is not defined [-Wundef]
 #if GOS_NEED_X_HEAP
     ^
/Users/mbp/work/stm32/toolc/ugfx_2.5/drivers/gdisp/SSD1306/gdisp_lld_SSD1306.c: In function 'gdisp_lld_flush':
/Users/mbp/work/stm32/toolc/ugfx_2.5/drivers/gdisp/SSD1306/gdisp_lld_SSD1306.c:153:8: warning: "SSD1306_SH1106" is not defined [-Wundef]
    #if SSD1306_SH1106
        ^

The configuration is:

• STM32F401RET Nucleo board
• Adafruit 0.96 inch OLED display with SSD1306
• STM32F401RE-Nucleo SSD1306 ChibiOS 1.0 example dated Feb 12, 2016
• uGFX Library v2.5
• ChibiOS/RT v16.1.4
• GCC-ARM-Embedded 5 Q1 2016
• Mac OS X 10.11.5

Thanks in advance.

Edited May 30, 2016 by rmozel
Typo

[Joel Bodenmann]

Hello and welcome to the community!

Thank you for bringing this to our attention. We will have a look at this and fix what needs to be fixed. However, this might take a couple of days. Please excuse the inconvenience.

[inmarket]

It is interesting your compiler is complaining about that when it is defined in the c standards that an undefined macro is to be treated numericly as zero for expression evaluation (which in turn is evaluated as false). Thus your compiler is giving invalid warnings. 

Having said that, in ugfx we have tried to predefine each macro so in this case it means that either a) we have missed the predefinition of those two symbols, or b) there is something wrong with your compile setup.

We will check the code but if your compile is working you can certainly ignore those warnings (or turn them off with compiler flags).