# JUCE on Linux/arm **URL:** \ **Category:** Linux\ **Created:** [September 2, 2012, 8:34pm UTC](https://forum.juce.com/t/juce-on-linux-arm/9189 "2012-09-02T20:34:19Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![atom](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/atom/32/113_2.png) [@atom](https://forum.juce.com/u/atom)\ **Post date:** [September 2, 2012, 8:34pm UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/1 "2012-09-02T20:34:19Z")
Well i managed to build Introjucer but the JuceDemo has some Atomic problems: ```auto [root@malina:~/juce/extras/JuceDemo/Builds/Linux]# make Linking Juce Demo build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::get() const': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:272: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::operator+=(long long)': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:299: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::operator++()': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:319: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::operator--()': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:333: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::get() const': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:272: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o:/root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:299: more undefined references to `__sync_add_and_fetch_8' follow build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetValue(double, double)': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:370: undefined reference to `__sync_val_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetBool(double, double)': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:347: undefined reference to `__sync_bool_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetValue(long long, long long)': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:370: undefined reference to `__sync_val_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetBool(long long, long long)': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:347: undefined reference to `__sync_bool_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetValue(unsigned long long, unsigned long long)': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:370: undefined reference to `__sync_val_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetBool(unsigned long long, unsigned long long)': /root/juce/extras/JuceDemo/Builds/Linux/../../../../modules/juce_core/system/../logging/../text/../memory/juce_Atomic.h:347: undefined reference to `__sync_bool_compare_and_swap_8' collect2: ld returned 1 exit status make: *** [build/JuceDemo] Error 1 ``` gcc is: ```auto [root@malina:~/juce/extras/JuceDemo/Builds/Linux]# gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabihf/4.6/lto-wrapper Target: arm-linux-gnueabihf Configured with: ../src/configure -v --with-pkgversion='Debian 4.6.3-8+rpi1' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc --disable-sjlj-exceptions --with-arch=armv6 --with-fpu=vfp --with-float=hard --enable-checking=release --build=arm-linux-gnueabihf --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf Thread model: posix gcc version 4.6.3 (Debian 4.6.3-8+rpi1) ``` Is this something i can fix ? i’m using -march=armv6 ---
**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://forum.juce.com/u/jules)\ **Post date:** [September 2, 2012, 9:33pm UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/2 "2012-09-02T21:33:53Z")
Well, GCC is missing those atomic primitives. Sorry, I don’t know anything about gcc on arm or why it might not support basic stuff like that… ---
**Author:** ![TheVinn](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/thevinn/32/806_2.png) [@TheVinn](https://forum.juce.com/u/TheVinn)\ **Post date:** [September 3, 2012, 3:31am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/3 "2012-09-03T03:31:49Z")
Try asking in #workingset on Freenode IRC If that doesn’t work you can try #boost, and then #c++ (as a last resort). ---
**Author:** ![atom](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/atom/32/113_2.png) [@atom](https://forum.juce.com/u/atom)\ **Post date:** [September 3, 2012, 10:45am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/4 "2012-09-03T10:45:30Z")
Well it’s just one module from juce sine Introjucer is running fine [attachment=0]raspberry\_introjucer.jpg[/attachment] it’s all raspberry pi, i’ll google some more and ask around. ---
**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://forum.juce.com/u/jules)\ **Post date:** [September 3, 2012, 11:30am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/5 "2012-09-03T11:30:36Z")
Cool to see the introjucer running on the Pi! But quite surprising that it would compile when there are atomic functions missing… I guess it might just be lucky that it happens not to use any classes that rely on them. ---
**Author:** ![cubusaddendum](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/cubusaddendum/32/53_2.png) [@cubusaddendum](https://forum.juce.com/u/cubusaddendum)\ **Post date:** [September 9, 2012, 10:33am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/6 "2012-09-09T10:33:49Z")
Very cool to see on the RPi! 😃 I was just going to see if I could get the audio plug-in host example running. I didn’t realize the gcc/ARM implementation was so incomplete. I wonder what compiler Nokia use for QtOnPi - they’re bound that have hit similar issues surely? ---
**Author:** ![cubusaddendum](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/cubusaddendum/32/53_2.png) [@cubusaddendum](https://forum.juce.com/u/cubusaddendum)\ **Post date:** [September 9, 2012, 1:17pm UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/7 "2012-09-09T13:17:37Z")
Ah yes, and this version of make doesn’t appear to support the -march option either. …Commenting out… ---
**Author:** ![X-Ryl669](https://avatars.discourse-cdn.com/v4/letter/x/a5b964/32.png) [@X-Ryl669](https://forum.juce.com/u/X-Ryl669)\ **Post date:** [November 21, 2012, 1:42pm UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/8 "2012-11-21T13:42:07Z")
It’s not atomic instructions that are missing, it’s only 64-bits atomic instructions that are missing. You can easily solve this by specializing the template for int64/uint64 type, to use a common static mutex for all 64 bits atomic operations (IIRC there’s only few case where they are used). ---
**Author:** ![ShareCommunity](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/sharecommunity/32/1748_2.png) [@ShareCommunity](https://forum.juce.com/u/ShareCommunity)\ **Post date:** [February 24, 2014, 6:27am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/9 "2014-02-24T06:27:07Z")
Hi, just building on the Pi for the first time in a long time (certainly since Jules' most recent big changes), and I'm getting these - I found this post, but haven't had a chance to actually read it (nor check my build settings just yet) - Hopefully, I'll update this when I find a solution: {the answer may be above - but it's too late at the mo to check it all out right now} ``` pi@raspberrypi ~/projects/JUCE/extras/Demo/Builds/Linux $ make Linking JuceDemo build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::get() const': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:279: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::operator+=(long long)': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:306: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::operator++()': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:327: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::operator--()': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:342: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::get() const': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:279: undefined reference to `__sync_add_and_fetch_8' build/intermediate/Debug/juce_core_1ee54a40.o:/home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:306: more undefined references to `__sync_add_and_fetch_8' follow build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetValue(double, double)': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:379: undefined reference to `__sync_val_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetBool(double, double)': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:356: undefined reference to `__sync_bool_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetValue(long long, long long)': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:379: undefined reference to `__sync_val_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetBool(long long, long long)': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:356: undefined reference to `__sync_bool_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetValue(unsigned long long, unsigned long long)': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:379: undefined reference to `__sync_val_compare_and_swap_8' build/intermediate/Debug/juce_core_1ee54a40.o: In function `juce::Atomic::compareAndSetBool(unsigned long long, unsigned long long)': /home/pi/projects/JUCE/extras/Demo/Builds/Linux/../../../../modules/juce_core/memory/juce_Atomic.h:356: undefined reference to `__sync_bool_compare_and_swap_8' collect2: ld returned 1 exit status ```   ---
**Author:** ![ShareCommunity](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/sharecommunity/32/1748_2.png) [@ShareCommunity](https://forum.juce.com/u/ShareCommunity)\ **Post date:** [February 24, 2014, 6:29am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/10 "2014-02-24T06:29:19Z")
[Am using export TARGET\_ARCH="-march=armv6 -mfpu=vfp -mfloat-abi=hard" ] ---
**Author:** ![ShareCommunity](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/sharecommunity/32/1748_2.png) [@ShareCommunity](https://forum.juce.com/u/ShareCommunity)\ **Post date:** [May 18, 2014, 3:17am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/11 "2014-05-18T03:17:25Z")
Does anyone have a fix for this? I've been scouring the Internet for info, but found not a lot - (somewhere suggested updating GCC to 4.8.1 which gets around the issue, but I'd rather not do that... it's almost like the functions aren't defined in GCC 4.7, but I find that hard to believe that Juce is the only thing refernecing 64 atomics on the Pi!)   ---
**Author:** ![atom](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/atom/32/113_2.png) [@atom](https://forum.juce.com/u/atom)\ **Post date:** [June 2, 2014, 3:12pm UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/12 "2014-06-02T15:12:52Z")
I was compiling JUCE stuff all weekend and never found this issue, i'm using gcc 4.7 (raspbian distro), can you try typing make -n and see what actual parameters are passed when compiling ? ---
**Author:** ![ShareCommunity](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/sharecommunity/32/1748_2.png) [@ShareCommunity](https://forum.juce.com/u/ShareCommunity)\ **Post date:** [August 1, 2014, 1:54am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/13 "2014-08-01T01:54:00Z")
Hi Atom, I know it's been a long time, but I'm finally looking at this again. Here's what I get when I bild Demo on my pi (latest tip of Juce/updates to Raspian) - Note. I can build Introjucer and Example projects without issue... It just seems to be Demo (I haven't tried the audio apps yet) ---
**Author:** ![ShareCommunity](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/sharecommunity/32/1748_2.png) [@ShareCommunity](https://forum.juce.com/u/ShareCommunity)\ **Post date:** [August 2, 2014, 2:29pm UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/14 "2014-08-02T14:29:15Z")
{Bump. Sorry for the long delay}   ---
**Author:** ![ShareCommunity](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/sharecommunity/32/1748_2.png) [@ShareCommunity](https://forum.juce.com/u/ShareCommunity)\ **Post date:** [August 15, 2014, 2:56am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/15 "2014-08-15T02:56:59Z")
OK. silly me. Simply disabling juce Unit tests JUCE\_UNIT\_TESTS=0 cures this..! Duh   I also discovered something. I can't run Juce apps (haveb't checked each of the extras/demos yet) directly on my pi (raspian, up to date) but they do run (almost flawlessly!) via vnc **AS LONG AS** the vnc server's bit depth is 24 bit. Anything else causes all sorts of funnies. (also OpenGl demo of JuceDemo crashes out -on both vnc and when running directly version)   ---
**Author:** ![ShareCommunity](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/sharecommunity/32/1748_2.png) [@ShareCommunity](https://forum.juce.com/u/ShareCommunity)\ **Post date:** [September 10, 2014, 3:43am UTC](https://forum.juce.com/t/juce-on-linux-arm/9189/16 "2014-09-10T03:43:00Z")
Ok, on a fresh SD card (having api-get installed all modules identified elsewhere on this forum) I found I had to ``` apt-get remove zenity ``` to get Introjucer's project open to work   My attempts to get OpenGL demos to work however have failed. OpenGL under Raspian / X11 doesn't seem to work AFAICT (if anyone else knows otherwise, please let me know ASAP! :) )   Hopefully, this little script is handy for others (Assumes juce is installed in ~/devel/juce )   File rebuildalljuce.sh ================== ``` #!/bin/sh export TARGET_ARCH="-march=armv6 -mfpu=vfp -mfloat-abi=hard" export CONFIG="Release" cd ~/devel/juce/extras/audio\ plugin\ demo/Builds/Linux && make clean && make && cd build && mv JuceDemoPlugin.so ~/.vst/JuceDemoPlugin.so cd ~/devel/juce/extras/audio\ plugin\ host/Builds/Linux && make clean && make && cd build && mv Plugin\ Host ~/Desktop/Plugin\ Host cd ~/devel/juce/extras/binarybuilder/Builds/Linux && make clean && make && cd build && mv BinaryBuilder ~/Desktop/BinaryBuilder cd ~/devel/juce/extras/Demo/Builds/Linux && make clean && make && cd build && mv JuceDemo ~/Desktop/JuceDemo cd ~/devel/juce/extras/example\ projects/Builds/Linux && make clean && make && cd build && mv HelloWorld ~/Desktop\HelloWorld cd ~/devel/juce/extras/Introjucer/Builds/Linux && make clean && make && cd build && mv Introjucer ~\Desktop/Introjucer export CONFIG="Debug" cd ~/devel/juce/extras/audio\ plugin\ demo/Builds/Linux && make clean && make && cd build && mv JuceDemoPlugin.so ~/.vst/JuceDemoPluginDB.so cd ~/devel/juce/extras/audio\ plugin\ host/Builds/Linux && make clean && make && cd build && mv Plugin\ Host ~/Desktop/Plugin\ HostDB cd ~/devel/juce/extras/binarybuilder/Builds/Linux && make clean && make && cd build && mv BinaryBuilder ~\Desktop/BinaryBuilderDB cd ~/devel/juce/extras/Demo/Builds/Linux && make clean && make && cd build && mv JuceDemo ~/Desktop/JuceDemoDB cd ~/devel/juce/extras/example\ projects/Builds/Linux && make clean && make && cd build && mv HelloWorld ~/Desktop/HelloWorldDB cd ~/devel/juce/extras/Introjucer/Builds/Linux && make clean && make && cd build && mv Introjucer ~/Desktop/IntrojucerDB ``` I also created another script to allow incremental builds ( same script without **make clean** s) File buildalljuce.sh ================ ``` #!/bin/sh export TARGET_ARCH="-march=armv6 -mfpu=vfp -mfloat-abi=hard" export CONFIG="Release" cd ~/devel/juce/extras/audio\ plugin\ demo/Builds/Linux && make && cd build && mv JuceDemoPlugin.so ~/.vst/JuceDemoPlugin.so cd ~/devel/juce/extras/audio\ plugin\ host/Builds/Linux && make && cd build && mv Plugin\ Host ~/Desktop/Plugin\ Host cd ~/devel/juce/extras/binarybuilder/Builds/Linux && make && cd build && mv BinaryBuilder ~/Desktop/BinaryBuilder cd ~/devel/juce/extras/Demo/Builds/Linux && make && cd build && mv JuceDemo ~/Desktop/JuceDemo cd ~/devel/juce/extras/example\ projects/Builds/Linux && make && cd build && mv HelloWorld ~/Desktop/HelloWorld cd ~/devel/juce/extras/Introjucer/Builds/Linux && make && cd build && mv Introjucer ~/Desktop/Introjucer export CONFIG="Debug" cd ~/devel/juce/extras/audio\ plugin\ demo/Builds/Linux && make && cd build && mv JuceDemoPlugin.so ~/.vst/JuceDemoPluginDB.so cd ~/devel/juce/extras/audio\ plugin\ host/Builds/Linux && make && cd build && mv Plugin\ Host ~/Desktop/Plugin\ HostDB cd ~/devel/juce/extras/binarybuilder/Builds/Linux && make && cd build && mv BinaryBuilder ~/Desktop/BinaryBuilderDB cd ~/devel/juce/extras/Demo/Builds/Linux && make && cd build && mv JuceDemo ~/Desktop/JuceDemoDB cd ~/devel/juce/extras/example\ projects/Builds/Linux && make && cd build && mv HelloWorld ~/Desktop/HelloWorldDB cd ~/devel/juce/extras/Introjucer/Builds/Linux && make && cd build && mv Introjucer ~/Desktop/IntrojucerDB ```