[opus] Compiling opus with emscripten: malloc_hook

[Hraban Luyat]

Hi xiph,

I'm trying to compile libopus from git.xiph.org/opus.git with
emscripten. The regular:

$ emconfigure ./configure --enable-fixed-point
$ emmake make

gets me quite far, but it hangs on the use of __malloc_hook in the tests:

tests/test_opus_api.c:1776:16: error: use of undeclared identifier
'__malloc_hook'; did you mean 'malloc_hook'?
   orig_malloc=__malloc_hook;
               ^~~~~~~~~~~~~
               malloc_hook
tests/test_opus_api.c:74:7: note: 'malloc_hook' declared here
void *malloc_hook(__attribute__((unused)) size_t size,
      ^
tests/test_opus_api.c:1777:4: error: use of undeclared identifier
'__malloc_hook'
   __malloc_hook=malloc_hook;
   ^
tests/test_opus_api.c:1782:7: error: use of undeclared identifier
'__malloc_hook'
      __malloc_hook=orig_malloc;
      ^
tests/test_opus_api.c:1808:15: error: use of undeclared identifier
'__malloc_hook'
              __malloc_hook=orig_malloc;
              ^
tests/test_opus_api.c:1815:15: error: use of undeclared identifier
'__malloc_hook'
              __malloc_hook=orig_malloc;
              ^
tests/test_opus_api.c:1828:18: error: use of undeclared identifier
'__malloc_hook'
                 __malloc_hook=orig_malloc;
                 ^
tests/test_opus_api.c:1835:18: error: use of undeclared identifier
'__malloc_hook'
                 __malloc_hook=orig_malloc;
                 ^
tests/test_opus_api.c:1846:7: error: use of undeclared identifier
'__malloc_hook'
      __malloc_hook=orig_malloc;
      ^
tests/test_opus_api.c:1850:4: error: use of undeclared identifier
'__malloc_hook'
   __malloc_hook=orig_malloc;
   ^


As a work-around, I just %s/__malloc_hook/malloc_hook/g. I don't need
the tests for emscripten so I don't care if this is correct or not.

But does anyone know of a proper fix that could find its way back
upstream? It would be nice if libopus were emscripten compatible out
of the box.

Cheers,

Hraban