In my work on a Chrome App using the PNaCl-compiled version of csound, I'm continuing to have trouble accessing the filesystems that csound uses. I think this is due to differences between Chrome apps, which run locally, and server-based apps which use PNaCl.

So far I have just been using a pre-compiled pexe, but I think I need to compile my own to solve this problem. I can't seem to get it to work, though.

I've been trying to follow the instructions (such that they are) in nacl/csound/docs/pnacl_csound.pdf.

This is what I've done.

Downloaded the Native Client SDK from https://developer.chrome.com/native-client/sdk/download
Unzipped into /usr/local/share

From nacl_sdk dir, ran ./naclsdk update, which downloaded pepper_42 (current stable) code into its own subdir.

Set NACL_SDK_ROOT env var to /usr/local/share/nacl_sdk/pepper_42

Downloaded libsndfile-nacl.tar.gz from the Dropbox url given in the PDF.

Unpacked tarball, cd'd to libsndfile-nacl/src and ran make. This ran without errors.

Changed into the nacl dir of csound (still using develop branch of the repo, not sure if that matters) and ran ./build.sh:

forrest@makemake:~/src/csound6/csound-csound6-git/nacl$ ./build.sh
../Engine/csound_orc.y:24.1-12: warning: deprecated directive, use ‘%pure-parser’ [-Wdeprecated]
 %pure_parser
 ^^^^^^^^^^^^
../Engine/csound_orc.y:120.1-12: warning: deprecated directive, use ‘%pure-parser’ [-Wdeprecated]
 %pure_parser
 ^^^^^^^^^^^^
../Engine/csound_orc.y: warning: 4 shift/reduce conflicts [-Wconflicts-sr]
../Engine/csound_orc.y: warning: 18 reduce/reduce conflicts [-Wconflicts-rr]
  CC   pnacl/Release/__//Engine/auxfd.o
In file included from ../Engine/auxfd.c:24:
In file included from ../include/csoundCore.h:818:
../H/prototyp.h:27:10: fatal error: 'sndfile.h' file not found
#include <sndfile.h>
         ^
1 error generated.
Makefile:232: recipe for target 'pnacl/Release/__//Engine/auxfd.o' failed
make: *** [pnacl/Release/__//Engine/auxfd.o] Error 1

Strange that I would get an error that it couldn't find sndfile.h, since I have that file in /usr/include. Since it's probably better to include the one from the libsndfile-nacl tarball anyway, I edited Makefile and added the path to libsndfile-nacl/src to the includes.

This time, it runs successfully. The last line is
 LIB /usr/local/share/nacl_sdk/pepper_42/lib/pnacl/Release/libcsound.a

Great. I assume this means I have a static lib that I can link into the .pexe file.

Now, I change into the csound subdir under nacl and run make:

forrest@makemake:~/src/csound6/csound-csound6-git/nacl/csound$ make
  CXX  pnacl/Release/csound.o
csound.cpp:519:11: error: no member named 'VarDictionary' in namespace 'pp'
      pp::VarDictionary var_dictionary_message(var_message);
      ~~~~^
csound.cpp:520:27: error: use of undeclared identifier 'var_dictionary_message'
      pp::Var var_input = var_dictionary_message.Get("input");
                          ^
2 errors generated.
Makefile:22: recipe for target 'pnacl/Release/csound.o' failed
make: *** [pnacl/Release/csound.o] Error 1

Ok, now I'm totally lost. Help?

Forrest