Godot: Linking error on Android Arm64v8

[erammos]

Godot version:
v3.2.beta.custom_build.14e52f7ae
OS/device including version:
Ubuntu
Issue description:

[ 96%] Linking Shared Library ==> bin/libgodot.android.opt.armv8.so
modules/libmodules.android.opt.armv8.a(opus_decoder.android.opt.armv8.o): In function `opus_decoder_init':
opus_decoder.c:(.text.opus_decoder_init+0x180): undefined reference to `opus_select_arch'
modules/libmodules.android.opt.armv8.a(celt_decoder.android.opt.armv8.o): In function `celt_decoder_init':
celt_decoder.c:(.text.celt_decoder_init+0x9c): undefined reference to `opus_select_arch'
modules/libmodules.android.opt.armv8.a(pitch.android.opt.armv8.o): In function `pitch_search':
pitch.c:(.text.pitch_search+0x4a8): undefined reference to `CELT_PITCH_XCORR_IMPL'
pitch.c:(.text.pitch_search+0x4ac): undefined reference to `CELT_PITCH_XCORR_IMPL'
modules/libmodules.android.opt.armv8.a(celt_lpc.android.opt.armv8.o): In function `_celt_autocorr':
celt_lpc.c:(.text._celt_autocorr+0x258): undefined reference to `CELT_PITCH_XCORR_IMPL'
celt_lpc.c:(.text._celt_autocorr+0x25c): undefined reference to `CELT_PITCH_XCORR_IMPL'
modules/libmodules.android.opt.armv8.a(init_decoder.android.opt.armv8.o): In function `silk_init_decoder':
init_decoder.c:(.text.silk_init_decoder+0x24): undefined reference to `opus_select_arch'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
scons: *** [bin/libgodot.android.opt.armv8.so] Error 1
scons: building terminated because of errors.

Steps to reproduce:
scons platform=android target=release android_arch=arm64v8

[AlexHolly]

related? https://github.com/xiph/opus/issues/140
revert https://github.com/godotengine/godot/commit/ba4c808721592a8558686b518d12f36e0fe60957 solves the issue

[Calinou]

I can confirm this on commit https://github.com/godotengine/godot/commit/fea3890e1e994257a27cbf7480d8d4cdb037cfa6.

[zlsa]

I can confirm this on commit 98caeb635.

[m4gr3d]

@akien-mga Any opposition to reverting PR #33311 for now?

[akien-mga]

I'd prefer fixing the build issue properly, which shouldn't be hard. I'll work on it tomorrow morning.

Edit: After a quick look, fixing this doesn't seem so easy. It's probably possible to find a relatively clean fix to make things build, but I have doubts on whether either the previous or the new config.h is correct. Best leave that for later and go back to what was working.