joomla:*-fpm-alpine failing to build on 32-bit architectures

[yosifkit]

Because the base images, php:8.*-fpm-alpine, recently updated to Alpine 3.21, some modules now fail to build on i386, arm32v7 and arm32v6. The memcached module is the one that is currently failing. It is caused by Alpine 3.21 using gcc 14 which changed incompatible-pointer-types to an error instead of just a warning (https://gcc.gnu.org/gcc-14/porting_to.html). Luckily php-memcached already has a fix in in 3.3.0, so just a bump to the pecl install memcached should be enough to fix it.

build log:

/tmp/pear/temp/memcached/php_memcached.c: In function 's_compress_value':
/tmp/pear/temp/memcached/php_memcached.c:903:65: error: passing argument 2 of 'compress' from incompatible pointer type [-Wincompatible-pointer-types]
  903 |                         int status = compress((Bytef *) buffer, &compressed_size, (Bytef *) ZSTR_VAL(payload), ZSTR_LEN(payload));
      |                                                                 ^~~~~~~~~~~~~~~~
      |                                                                 |
      |                                                                 size_t * {aka unsigned int *}
In file included from /tmp/pear/temp/memcached/php_memcached.c:38:
/usr/include/zlib.h:1232:53: note: expected 'uLongf *' {aka 'long unsigned int *'} but argument is of type 'size_t *' {aka 'unsigned int *'}
 1232 | ZEXTERN int ZEXPORT compress(Bytef *dest,   uLongf *destLen,
      |                                             ~~~~~~~~^~~~~~~
/tmp/pear/temp/memcached/php_memcached.c: In function 's_decompress_value':
/tmp/pear/temp/memcached/php_memcached.c:3636:72: error: passing argument 2 of 'uncompress' from incompatible pointer type [-Wincompatible-pointer-types]
 3636 |                 decompress_status = (uncompress((Bytef *) buffer->val, &buffer->len, (Bytef *)payload, payload_len) == Z_OK);
      |                                                                        ^~~~~~~~~~~~
      |                                                                        |
      |                                                                        size_t * {aka unsigned int *}
/usr/include/zlib.h:1270:55: note: expected 'uLongf *' {aka 'long unsigned int *'} but argument is of type 'size_t *' {aka 'unsigned int *'}
 1270 | ZEXTERN int ZEXPORT uncompress(Bytef *dest,   uLongf *destLen,
      |                                               ~~~~~~~~^~~~~~~
make: *** [Makefile:210: php_memcached.lo] Error 1
ERROR: `make' failed