Describe the bug

At some point in the last three months, bcmath and gmp stopped working in our workflow with no change to the workflow itself. We were installing PHP manually with spc, but the same things happens when switching back to setup-php. See the last successful run vs. a current run.

As you can see, we are getting errors like "bcmath Could not install bcmath on PHP 7.3.30" with no further information.

Version

• I have checked releases, and the bug exists in the latest patch version of v1 or v2.
• v2
• v1

Runners

• GitHub Hosted
• Self Hosted

Operating systems

ubuntu-latest

PHP versions

7.2 - 8.0.

To Reproduce

    strategy:
      matrix:
        arch: ["amd64", "i386"]
        operating-system: [ubuntu-latest]
        php-versions: ['7.2', '7.3', '7.4', '8.0']
        php-extensions: ['bcmath', 'gmp']
    steps:
      - name: Install PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: ${{ matrix.php-versions }}
          extensions: "mbstring, intl, ${{ matrix.php-extensions }}"
          tools: "composer, phpize"
          coverage: xdebug

Expected behavior

bcmath and gmp are installed when appropriate.

Screenshots/Logs

See above.

Additional context

Are you willing to submit a PR?

If I had any idea what the bug was, perhaps.