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pimoroni / unicorn-hat

Python library for Unicorn pHAT and HAT. 32 or 64 blinding ws2812 pixels for your Raspberry Pi
https://shop.pimoroni.com/products/unicorn-hat
MIT License
370 stars 130 forks source link

Building unicornhat fails #61

Closed ScrumpyJack closed 8 years ago

ScrumpyJack commented 8 years ago

sources: py-unicorn-hat-2.1.2.tar.gz first i build UnicornHat, which succeeds, then rpi-ws281x method: python setup.py build

building UnicornHat
running build
running build_py
creating build
creating build/lib
copying unicornhat.py -> build/lib
building rpi-ws281x
running build
running build_py
Compiling ws281x library...
creating build
creating build/lib.linux-armv7l-2.7
copying neopixel.py -> build/lib.linux-armv7l-2.7
running build_ext
building '_rpi_ws281x' extension
creating build/temp.linux-armv7l-2.7
gcc -DNDEBUG -Os -fomit-frame-pointer -pipe -fPIC -g -Os -fomit-frame-pointer -Os -fomit-frame-pointer -fPIC -Ilib/ -I/usr/include/python2.7 -c rpi_ws281x_wrap.c -o build/temp.linux-armv7l-2.7/rpi_ws281x_wrap.o
gcc -shared -Wl,--as-needed -Wl,--as-needed -Os -fomit-frame-pointer -Os -fomit-frame-pointer build/temp.linux-armv7l-2.7/rpi_ws281x_wrap.o -Llib/ -L/usr/lib -lws2811 -lpython2.7 -o build/lib.linux-armv7l-2.7/_rpi_ws281x.so
/usr/lib/gcc/armv6-alpine-linux-muslgnueabihf/5.3.0/../../../../armv6-alpine-linux-muslgnueabihf/bin/ld: cannot find -lws2811
collect2: error: ld returned 1 exit status
error: command 'gcc' failed with exit status 1
Gadgetoid commented 8 years ago

Which version of Raspbian are you building on, and what's the result of:

gcc --version