[gnutls-devel] GnuTLS | static build: multiple definition of 'nettle_ecc_scalar_random' (#1045)

[Development of GNU's TLS library]

Adrien Béraud created an issue: https://gitlab.com/gnutls/gnutls/-/issues/1045



When building a static library of gnutls, `nettle_ecc_scalar_random` is included in the resulting static library:

```
nm -C x86_64-linux-android/lib/libgnutls.a  | grep nettle_ecc_scalar_random
00000000000001f0 T nettle_ecc_scalar_random
```

However this symbol is really part of `libhogweed` (Nettle):

```
nm -C x86_64-linux-android/lib/libhogweed.a  | grep nettle_ecc_scalar_random
00000000000001f0 T nettle_ecc_scalar_random
```

So when building an executable with `-lgnutls -lhogweed -lnettle`:
```
ld: error: x86_64-linux-android/lib/libhogweed.a(ecc-random.o): multiple definition of 'nettle_ecc_scalar_random'
ld: x86_64-linux-android/lib/libgnutls.a(ecc-random.o): previous definition here
clang90++: error: linker command failed with exit code 1 (use -v to see invocation)
```

Or if trying to build without libhogweed (just `-lgnutls -lnettle`), the linker fails at runtime:
```
dlopen failed: cannot locate symbol "nettle_rsa_pss_sha256_sign_digest_tr" referenced by "/data/app/blah.so"...
```

Expected behavior:

No definition from libhogweed or nettle should be included in the static library

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