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ninjablocks / 433Utils

433Kit is a collection of code and documentation designed to assist you in the connection and usage of RF 433MHz transmit and receive modules to/with your Arduino and Rapberry Pi.
ninjablocks.com
MIT License
895 stars 335 forks source link

Compile error? #27

Closed Dragao75 closed 8 years ago

Dragao75 commented 8 years ago

Hi all, I am having trouble compiling. I get errors like /usr/lib/gcc/arm-linux-gnueabihf/5/../../../../lib/libwiringPi.so: undefined reference to pthread_join' /usr/lib/gcc/arm-linux-gnueabihf/5/../../../../lib/libwiringPi.so: undefined reference topthread_create' /usr/lib/gcc/arm-linux-gnueabihf/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_cancel' collect2: error: ld returned 1 exit status

I have read that using the latest gcc version compiler require that libraries follow the object or source files.

I am using ubuntu 16.04 and the latest gcc..

Anyone have any suggestion(s) on how to proceed?

Dragao75 commented 8 years ago

Everyone on vacation?

mat1989 commented 8 years ago

Hi all, I am also not able to compiling. I get this error: make: *\ No rule to make target '../rc-switch/RCSwitch.o', needed by 'send'. Schluss.

Could someone help me please?

rotv commented 8 years ago

Are you using a previously checked out git clone? After a recent PR the instructions have changed, the recursive part is new:

git clone --recursive git://github.com/ninjablocks/433Utils.git (recursive ensure that the rc-switch submodule gets populated which is needed by RPi_utils)

If that doesn't do it, then something must have gone wrong with PR #17. I'll try to take a look at it during the weekend, meanwhile you can try https://github.com/rotv/433Utils

rotv commented 8 years ago

I just verified that the latest 433Utils does indeed compile, so that leads me to believe that the 'recursive' was missing for @mat1989. Unfortunately I don't know whats wrong for @Dragao75, seems to be something outside of the 433Utils suite.

Dragao75 commented 8 years ago

@rotv I have to modify the Makefile to get compilation working. I changed: CXXFLAGS=-DRPI ->>> CXXFLAGS=-DRPI -pthread Had to add -pthread

ChewieB commented 7 years ago

That worked great for me too. I was following the this tutorial and hit a brick wall. Thanks to you and Google :+)

OSevangelist commented 6 years ago

i had to compile by adding -lrt -lcrypt to the compile flags

Other than this it didn't work for my and i got "shm" and "crypt" compile errors 


/usr/lib/gcc/arm-linux-gnueabihf/5/../../../../lib/libwiringPi.so: undefined reference to `crypt'
/usr/lib/gcc/arm-linux-gnueabihf/5/../../../../lib/libwiringPi.so: undefined reference to `shm_open'

having gotten rid of the pthreads issue by adding - phtread to the CXXFLAGS as suggested by @rotv