Monome Grid & Bela

Please let me know if I need to move this question to a new post, though this post has helped me nearly get up and running.I have a Bela with latest 0.3.8 image and looking to get serialosc installed.

After some time getting apt-get update to work (couldn't find Release info or something) I finally installed the lib tools. Found somewhere that need to run echo "deb http://archive.debian.org/debian stretch main contrib non-free" > /etc/apt/sources.list.

I clone/build/install the libmonome.git however for serialosc. when configuring it seems to be successful (though fmemopen and reallocarray are checked as 'no' and windows.h is not found). When I run ./waf I get the following error
[ 1/23] Compiling src/common/util.c
gcc: error: unrecognized command line option '-std=c17'; did you mean '-std=c11'?

Waf: Leaving directory `/root/serialosc/build'
Build failed
-> task in 'serialosc-common' failed with exit status 1 (run with -v to display more information)

Any ideas?

It seems that this commit increased the C standard level from C99 to C17 for the purpose of supporting anonymous unions in accordance to the updated standard instead of using the compiler-specific __extension__ keyword. However, it looks like this improvement to the language took place in the transition from C99 to C11 (https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2244.htm), so they could have as well specified C11 instead of C17. This was a pretty recent change and it doesn't look like any new code has been added since then that would rely on C17. For all of these reasons, I think it is safe to lower the requirement to C11 which is the latest C revision supported by gcc on the latest Bela version.

Apply this patch and you should be able to build:

diff --git a/wscript b/wscript
index 659328c..cdd25ab 100644
--- a/wscript
+++ b/wscript
@@ -281,9 +281,9 @@ def configure(conf):


        if conf.options.enable_debug:
-               conf.env.append_unique("CFLAGS", ["-std=c17",  "-Wall", "-g", "-Og"])
+               conf.env.append_unique("CFLAGS", ["-std=c11",  "-Wall", "-g", "-Og"])
        else:
-               conf.env.append_unique("CFLAGS", ["-std=c17", "-Wall", "-Werror", "-O2"])
+               conf.env.append_unique("CFLAGS", ["-std=c11", "-Wall", "-Werror", "-O2"])


        if conf.env.CC_NAME in ["gcc", "clang"]:

(i.e.: replace c17 with c11 in wscript). You'll have to rm -rf build and ./waf configure again after this for the changes to be picked up.

I have looked into this and I am unsure I can test this any further without having a monome myself. Try adding this printf statement so we know what path it's trying to open:

diff --git a/src/serialosc-device/config.c b/src/serialosc-device/config.c
index b6fda47..d3a05fd 100644
--- a/src/serialosc-device/config.c
+++ b/src/serialosc-device/config.c
@@ -135,6 +135,7 @@ sosc_config_write(const char *config_dir, const char *serial, sosc_state_t *stat
                path = path_for_serial(sosc_get_default_config_dir(), serial);
        }

+       printf("FOPEN PATH %s\n", path);
        if (!(f = fopen(path, "w"))) {
                s_free(path);
                return 1;

Rebuild, restart, replug

when connecting and disconnecting it report
root@bela:~# journalctl -f -n 50 -u serialoscd
-- Logs begin at Thu 2016-11-03 17:16:43 UTC. --
Nov 12 07:33:25 bela systemd[1]: Started serialosc daemon.
Nov 14 05:38:25 bela serialoscd[163]: serialosc [m0000606]: connected, server running on port 12088
Nov 14 05:38:31 bela serialoscd[163]: serialosc [m0000606]: couldn't write config to (null)
Nov 14 05:38:31 bela serialoscd[163]: [-] bad message, bailing out
Nov 14 05:38:31 bela serialoscd[163]: serialosc [m0000606]: disconnected, exiting

Sorry for the day long responses!, im working long hours at the moment...

hmm did you actually do make install after applying the latest patch? This error message looks identicla to the previous one.

Hi! I just check and did it again. same output

Could this related to any of the messages I get when I run ./waf configure ? When its doing its checking (for compiler etc) everything is reported as yes (in green) however checking for funopen and reallocarray are reported as no (orange) plus checking for header windows.h it reports not found (again, in orange).

Says that the configure was successfully finished so appears okay but did wonder

root@bela:~/serialosc# grep sosc_config_write src/serialosc-device/config.c
sosc_config_write(const char *config_dir, const char *serial, sosc_state_t *state)
printf("sosc_config_write(%s, %s, %p)\n", config_dir ? config_dir : "(null)", serial ? serial : "(null)", state);
root@bela:~/serialosc#

How do I restart the process? I typically run systemctl (start/stop) serialoscd

I get an err changing line to
fprintf(stderr("FOPEN PATH %s\n",path));

I don't know c but assume needed extra brackets in there

or did you mean on this line?
printf("sosc_config_write(%s, %s, %p)\n", config_dir ? config_dir : "(null)", serial ? serial : "(null)", state);

change it to
fprintf(stderr("sosc_config_write(%s, %s, %p)\n", config_dir ? config_dir : "(null)", serial ? serial : "(null)", state));

jonnybela I typically run systemctl (start/stop) serialoscd

that's right. Try turning those into fprintf then. To avoid confusion, simply checkout the main branch here https://github.com/giuliomoro/serialosc
There, I applied the patches above and turned those printf into fprintf