[riot-notifications] [RIOT-OS/RIOT] cpu/esp: treat undefined reference as errors (#11246)

Gunar Schorcht notifications at github.com
Wed Mar 27 09:48:12 CET 2019

> However, putting the -ffunctions-sections did not solve the esp8266 issues so there may be something more.

I will take a look.

> I noticed that also the other architectures provide the option in both the CFLAGS and the LINKFLAGS but I do not understand why it should be that way…

Using option `-ffunction-sections` allows the linker optimizations. The disadvantage is, that you are not realizing all symbol dependencies.

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