[SOLVED] building wiringPi gpio utility on slackwarearm

louigi600 · 01-13-2016, 02:49 PM

While I was building native on my AC100 for my Pi (currently none of them have compiler) I came across a few issues as I wanted to keep the AC100 as clean as possible.
By editing a few of the #include directives and just putting devLib and wiringPi libs in /lib I was able to build the gpio tool.
I've put the patch here and the ready-built binary tarball here for anyone that might find them handy.

BTW: the tarball is not a slackware package but if you extract it in the root it will put the content in the right places.

justwantin · 01-17-2016, 12:09 AM

You are ever ambitious!!

I'm wondering if this could be adapted for WiringLMK, Lemakers fork of wiringPI

louigi600 · 01-17-2016, 12:51 AM

Since both my Allwinner based tables have had their screens broken I don't use them much ... and I've no other Allwinner based devices so I don't really know. But you can try if you like

Does wiringlmk have the same build problems as wiringpi ?

justwantin · 01-17-2016, 02:46 AM

I was just wondering, not sure if it is necessary (for me), I'm running crash and burn right now and let it install where it wanted to go, once I know what I'm doing I'll get official. It builds from a script which appears to be Gordon's original build script: download using git, cd into root directory, chmod +x build, and ./build.

Code:

ls -l /usr/local/lib  
total 100
lrwxrwxrwx 1 root root    18 Jan 10 19:45 libwiringPi.so -> libwiringPi.so.2.0
-rwxr-xr-x 1 root root 70464 Jan 10 19:45 libwiringPi.so.2.0
lrwxrwxrwx 1 root root    21 Jan 17 18:27 libwiringPiDev.so -> libwiringPiDev.so.2.0
-rwxr-xr-x 1 root root 24048 Jan 17 18:27 libwiringPiDev.so.2.0
drwxr-xr-x 2 root root  4096 Nov 18 19:48 perl5

Don't know where that perl5 came from I'll have to check that out someday.

Code:

# ls /usr/local/include
drcSerial.h  lcd128x64.h  mcp23008.h  mcp23s17.h  mcp4802.h  piGlow.h	softTone.h     wiringPiSPI.h
ds1302.h     max31855.h   mcp23016.h  mcp3002.h   pcf8574.h  piNes.h	sr595.h        wiringSerial.h
gertboard.h  max5322.h	  mcp23017.h  mcp3004.h   pcf8591.h  sn3218.h	wiringPi.h     wiringShift.h
lcd.h	     maxdetect.h  mcp23s08.h  mcp3422.h   piFace.h   softPwm.h	wiringPiI2C.h

Code:

# ls /usr/local/bin    
gpio

Code:

# ls /usr/local/man/man1
gpio.1

I just built WiringLMK into ~/build on a BananaPro. I had to mkdir /usr /usr/bin /usr/include /usr/lib but not /usr/man/man1. There are make files in ./wiringLMK, ./gpio and ./devLib that need DESTDIR and PREFIX edited to suit. The build will fail if you don't add $(PREFIX) to the paths of the two commands that create symbolic links in /usr/lib. Line 119 in ./wiringLMK/Makefile and line 96 in ./libDev/Makefile.

There were no perls in there.

louigi600 · 01-17-2016, 10:36 AM

I did not use the build script because it did not work for me, and after looking into it and seeing that not only it builds but also installs I was actually glad it did not work.
I then tried building just the piece I wanted (goip) and just went on from there until I had all the pieces required ti build it. Did not bother with anything else including man pages (the RPi2 where it's going doesn't have man).
In the patch you may notice that I create readme.slack ... I wrote that right after successfully compiling gpio.

Sorry I couldn't help any more then that.

louigi600 · 09-26-2016, 02:18 AM

Just an update if it's handy for anyone.
I hadto rebuild gpio from wiringpi again (on hardfloat this time) so I double checked the notes and did a little mending on them. I'll update them here asap ... for the time being here's the revised building notes:

Code:

tar zf wiringPi-b0a60c3.tar.gz
cd wiringPi-b0a60c3
cat ../wiringpi_build_on_slack.diff | patch -p1
cd devLib
ln -s ../wiringPi/wiringPiI2C.h .
make
cd ../wiringPi
make
cd ..
cp wiringPi/libwiringPi.so.2.31 /lib/
cp devLib/libwiringPiDev.so.2.31 /lib/
ldconfig
cd gpio
make
cp gpio /usr/local/bin

ppencho · 09-26-2016, 11:13 AM

Quote:

Originally Posted by louigi600

Code:

tar zf wiringPi-b0a60c3.tar.gz
cd wiringPi-b0a60c3
cat ../wiringpi_build_on_slack.diff | patch -p1
cd devLib
ln -s ../wiringPi/wiringPiI2C.h .
make
cd ../wiringPi
make
cd ..
cp wiringPi/libwiringPi.so.2.31 /lib/
cd devLib/libwiringPiDev.so.2.31 /lib/
ldconfig
cd gpio
make
cp gpio /usr/local/bin

I do not use wiringPi to check the file existence but I guess that the operation should be 'cp' (copy)?

louigi600 · 09-26-2016, 12:24 PM

Yes ... cp ... that's a typo

louigi600 · 08-18-2019, 04:39 AM

Quote:

Originally Posted by louigi600

While I was building native on my AC100 for my Pi (currently none of them have compiler) I came across a few issues as I wanted to keep the AC100 as clean as possible.
By editing a few of the #include directives and just putting devLib and wiringPi libs in /lib I was able to build the gpio tool.
I've put the patch here and the ready-built binary tarball here for anyone that might find them handy.

BTW: the tarball is not a slackware package but if you extract it in the root it will put the content in the right places.

With a more recent version I had to also create these 2 links:

Code:

bash-5.0# pwd
/usr/src/WiringPi-master/devLib
bash-5.0# ln -s ../wiringPi/wiringPiI2C.h .
bash-5.0# ln -s ../wiringPi/wiringPiI2C.c .

I will make a new patch asap.