Compiling HISE with Faust issue (Linux)

[toxonic]

@David-Healey Hmm, I’m not sure where I’d find a suitable PPA that’s guaranteed to work on my system. A quick Google search didn’t turn up anything useful. What also confuses me a bit is the fact that this always worked with the Faust source builds in older HISE builds. If only I knew what the linker error message cannot find -lfaust actually means....

[David Healey]

@toxonic -lfaust is the faust library. You can use find to check where it is on your system

find /usr -name "libfaust*"

[toxonic]

@David-Healey
Yes, I’ve already searched for libfaust and libfaust.so and found several matches (see below). By the way, the master branch of HISE - back when there was no dedicated ReleaseWithFaust build configuration yet - can be compiled with Faust without any issues.

/usr/local/lib/libfaustmachine.so
/usr/local/lib/libfaust.so.2
/usr/local/lib/libfaustmachine.so.1.0.0
/usr/local/lib/libfaust.so
/usr/local/lib/libfaust.a
/usr/local/lib/libfaustmachine.so.0
/usr/local/lib/libfaust.so.2.83.5
/usr/local/lib/libfaustmachine.a
/usr/local/lib/libfaustwithllvm.a
/usr/local/lib/libfaust.so.2.50.6
/usr/local/lib/libfaust.so.2.54.9
/usr/local/share/faust/webaudio/libfaust-glue.js
/usr/local/share/faust/webaudio/libfaust-worklet-glue.js
/usr/local/share/faust/webaudio/libfaust-wasm.js
/usr/local/share/faust/webaudio/libfaust-glue.wasm
/usr/local/share/faust/webaudio/libfaust-wasm.data
/usr/local/share/faust/webaudio/libfaust-wasm.wasm
/usr/local/include/faust/dsp/libfaust-box-c.h
/usr/local/include/faust/dsp/libfaust.h
/usr/local/include/faust/dsp/libfaust-c.h
/usr/local/include/faust/dsp/libfaust-box.h
/usr/local/include/faust/dsp/libfaust-signal-c.h
/usr/local/include/faust/dsp/libfaust-signal.h

[David Healey]

@toxonic said in Compiling HISE with Faust issue (Linux):

By the way, the master branch of HISE - back when there was no dedicated ReleaseWithFaust build configuration yet

What do you have to do in Projucer to do that?

[toxonic]

@David-Healey
If I remember correctly, I just enabled the three Faust specific configuratons in the modules section (something about Faust, Faust_JIT and Faust_LLVM_JIT) and added 'faust' to the Linker libraries.

[David Healey]

@toxonic Hmm I'm not sure what's going on there. Do you get any output from this command?

cc -fuse-ld=mold -Wl,--trace -lfaust -x c /dev/null 2>&1 | grep libfaust (replace mold with gold if you're using gold).

[toxonic]

@David-Healey Nope, no output. Sorry for my ignorance, what does this command do?

PS: I thought, maybe I would have to enable the Faust modules in the most recent HISE develop branch too, although it seems that they are already enabled in the ReleaseWithFaust configuration via the preprocessor definitions. But it didn't work, i get the same output:

Linking HISE Standalone - App
mold: library not found: faust
collect2: error: ld returned 1 exit status
make: *** [Makefile:257: build/HISE Standalone] Error 1

[David Healey]

@toxonic That command asks the linker if it can find faust, since you got no output that explains the issue. Why it works with the master branch is probably because that branch isn't using gold/mold but is using ld or something - just guessing.

This is the output I see

dave@debian:~$ cc -fuse-ld=mold -Wl,--trace -lfaust -x c /dev/null 2>&1 | grep libfaust
trace: /usr/lib/x86_64-linux-gnu/libfaust.so

It probably means the location for libfaust on your system is not in the system path. You could try adding it to the path in .bashrc and then sourcing .bashrc.

[toxonic]

@David-Healey
Oh wow, I guess, I will need help there. How do I do that? and I have 2 .bashrc on my system, one in my home folder and one in /etc/skel.
Which one should I use for that?

[David Healey]

@toxonic The one in your home folder

To add something to the path add it at the bottom of the file. Here I'm adding the path to ccache/bin, just replace that with the path to the folder where you have libfaust

export PATH="/usr/lib/ccache/bin/:$PATH"

Then in a terminal run source ~/.bashrc

[toxonic]

When replacing modl with gold or ld, I get no output as well...

[David Healey]

@toxonic After adding the path run the command again to see if it the linker can find it.

[toxonic]

@David-Healey
Okay, I now see that there is obviously a problem on my system. Apart from the libfaust.so files that are in the /tools/faust/fakelib_linux folder in the HISE repository, there is no libfaust.so file on my system at all. In /usr/local/lib there is only a dead symlink to libfaust.so… which seems kind of weird to me.

[David Healey]

@toxonic Weird, I wonder why it worked with the master branch then... did you test it in HISE after compiling the master?

[toxonic]

@David-Healey Nope, not yet... let me check it out

[toxonic]

@David-Healey
So, the master branch of HISE works with Faust. I opened an existing project and added a ScriptFX, and the Faust scripts work there. I can’t tell you why the master branch was able to compile — it’s a mystery to me.

What also confuses me is the fact that there apparently is no libfaust.so on my system. The symlink to the shared library libfaust.so in /usr/local/lib is, by the way, 114 MB in size… how can that be? The file cannot be traced back to an original file.

[David Healey]

@toxonic Hmm does the master branch include its own copy of faust?

[toxonic]

@David-Healey
How can I find that out? It doesn’t seem to be the case — at least no libfaust.so is included.
This is, what I get, when checking libfile.so if it's a file, and what it's linking against

toxonic@toxonic-Vector-GP66-12UGS:~$ file /usr/local/lib/libfaust.so
/usr/local/lib/libfaust.so: symbolic link to libfaust.so.2
toxonic@toxonic-Vector-GP66-12UGS:~$ ldd /usr/local/lib/libfaust.so
	linux-vdso.so.1 (0x00007ffc2f5d3000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f1b0350e000)
	libtinfo.so.6 => /lib/x86_64-linux-gnu/libtinfo.so.6 (0x00007f1b034dc000)
	libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f1b032b0000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f1b031c9000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f1b031a9000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f1b02f80000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f1b09bda000)

[toxonic]

@David-Healey This is the ldd output for the HISE master branch binary. It seems to link against /usr/local/lib/libfaust.so.2

toxonic@toxonic-Vector-GP66-12UGS:~$ ldd '/home/toxonic/Repos/HISE/projects/standalone/Builds/LinuxMakefile/build/HISE Standalone.faust' 
	linux-vdso.so.1 (0x00007ffd3b922000)
	libasound.so.2 => /lib/x86_64-linux-gnu/libasound.so.2 (0x00007f6c490d5000)
	libfreetype.so.6 => /lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f6c4900d000)
	libGL.so.1 => /lib/x86_64-linux-gnu/libGL.so.1 (0x00007f6c48f86000)
	libfaust.so.2 => /usr/local/lib/libfaust.so.2 (0x00007f6c428fe000)
	libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f6c426d2000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6c425e9000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f6c425c9000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6c423a0000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f6c49200000)
	libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x00007f6c42365000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f6c42349000)
	libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x00007f6c4233b000)
	libGLdispatch.so.0 => /lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007f6c42281000)
	libGLX.so.0 => /lib/x86_64-linux-gnu/libGLX.so.0 (0x00007f6c4224d000)
	libtinfo.so.6 => /lib/x86_64-linux-gnu/libtinfo.so.6 (0x00007f6c4221b000)
	libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x00007f6c421f8000)
	libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007f6c420b8000)
	libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f6c4208c000)
	libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x00007f6c42086000)
	libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f6c4207e000)
	libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007f6c42066000)
	libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 (0x00007f6c42059000)

[David Healey]

@toxonic said in Compiling HISE with Faust issue (Linux):

It seems to link against /usr/local/lib/libfaust.so.2

And that file exists on your system?