[gnutls-devel] GnuTLS | Cannot export hidden symbol __gnutls_arm_cpuid_s when building on macOS Monterey in M1 machine. (#1288)

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Eduardo René Rodríguez Ávila created an issue: https://gitlab.com/gnutls/gnutls/-/issues/1288



## Description of problem:

Building `gnutls` 3.7.2 fails on macOS Monterey with error:

    ...
    CCLD     libgnutls.la<br>
    ld: warning: cannot export hidden symbol __gnutls_arm_cpuid_s from accelerated/.libs/libaccelerated.a(aarch64-common.o)<br>
    Undefined symbols for architecture arm64:<br>
      "_c_isdigit", referenced from:<br>
          __asn1_expand_object_id in libminitasn1.a(parser_aux.o)<br>
          __asn1_check_identifier in libminitasn1.a(parser_aux.o)<br>
    ld: symbol(s) not found for architecture arm64<br>
    clang: error: linker command failed with exit code 1 (use -v to see invocation)

## Version of gnutls used:

3.7.2

## Distributor of gnutls (e.g., Ubuntu, Fedora, RHEL)

Tarball downloaded from [gnupg.org](https://www.gnupg.org/ftp/gcrypt/gnutls/v3.7/)

## How reproducible:

In a Mac M1 with macOS Monterey and using ZSH, follow next steps:

Steps to Reproduce:

    % curl -O https://www.gnupg.org/ftp/gcrypt/gnutls/v3.7/gnutls-3.7.2.tar.xz
    % tar -xvf gnutls-3.7.2.tar.xz
    % pushd gnutls-3.7.2
    % /usr/local/sbin/unbound-anchor -a "/etc/unbound/root.key"
    % CFLAGS="-m64" CXXFLAGS="-m64" ./configure --prefix=/usr/local --without-p11-kit --with-ncluded-libtasn1 --with-included-unistring
    % make

## Actual results:

    ...
    ld: warning: cannot export hidden symbol __gnutls_arm_cpuid_s from accelerated/.libs/libaccelerated.a(aarch64-common.o)<br>
    Undefined symbols for architecture arm64:<br>
      "_c_isdigit", referenced from:<br>
          __asn1_expand_object_id in libminitasn1.a(parser_aux.o)<br>
          __asn1_check_identifier in libminitasn1.a(parser_aux.o)<br>
    ld: symbol(s) not found for architecture arm64<br>
    clang: error: linker command failed with exit code 1 (use -v to see invocation)

## Expected results:

Successful compilation.

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