In file included from /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/zend_portability.h:47,
 from /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/zend_types.h:25,
 from /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/zend.h:27,
 from /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/main/php.h:33,
 from /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/ext/pdo_mysql/pdo_mysql.c:24:
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:109:46: error: unknown type name ‘THREAD_T’
 109 | TSRM_API void *ts_resource_ex(ts_rsrc_id id, THREAD_T *th_id);




^~~~~~~~
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:124:42: error: unknown type name ‘THREAD_T’
 124
typedef void (*tsrm_thread_begin_func_t)(THREAD_T thread_id);


^~~~~~~~
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:125:40: error: unknown type name ‘THREAD_T’
 125
typedef void (*tsrm_thread_end_func_t)(THREAD_T thread_id);


^~~~~~~~
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:133:10: error: unknown type name ‘THREAD_T’
 133
TSRM_API THREAD_T tsrm_thread_id(void);


^~~~~~~~
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:134:10: error: unknown type name ‘MUTEX_T’
 134
TSRM_API MUTEX_T tsrm_mutex_alloc(void);


^~~~~~~
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:135:31: error: unknown type name ‘MUTEX_T’
 135
TSRM_API void tsrm_mutex_free(MUTEX_T mutexp);


^~~~~~~
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:136:30: error: unknown type name ‘MUTEX_T’
 136
TSRM_API int tsrm_mutex_lock(MUTEX_T mutexp);


^~~~~~~
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:137:32: error: unknown type name ‘MUTEX_T’
 137
TSRM_API int tsrm_mutex_unlock(MUTEX_T mutexp);


^~~~~~~
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:142:50: error: unknown type name ‘tsrm_thread_begin_func_t’
 142
TSRM_API void *tsrm_set_new_thread_begin_handler(tsrm_thread_begin_func_t new_thread_begin_handler);


^~~~~~~~~~~~~~~~~~~~~~~~
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/Zend/../TSRM/TSRM.h:143:48: error: unknown type name ‘tsrm_thread_end_func_t’; did you mean ‘tsrm_shutdown_func_t’?
 143
TSRM_API void *tsrm_set_new_thread_end_handler(tsrm_thread_end_func_t new_thread_end_handler);


^~~~~~~~~~~~~~~~~~~~~~


tsrm_shutdown_func_t
 In file included from /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/ext/mysqlnd/mysqlnd.h:61,
 from /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/ext/pdo_mysql/php_pdo_mysql_int.h:25,
 from /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/ext/pdo_mysql/pdo_mysql.c:30:
 /var/tmp/portage/dev-lang/php-7.4.5/work/sapis-build/apache2/ext/mysqlnd/mysqlnd_structs.h:314:2: error: unknown type name ‘MUTEX_T’
 314
MUTEX_T LOCK_access;


^~~~~~~
 make: *** [Makefile:1224: ext/pdo_mysql/pdo_mysql.lo] Error 1

ERROR: dev-lang/php-7.4.5::core-server-kit failed (compile phase):
emake failed

ip-172-31-24-104 /home/bcowan # emerge -pv php
These are the packages that would be merged, in order:
Calculating dependencies... done!
 [ebuild NS ] dev-lang/php-7.4.5:7.4::core-server-kit [7.3.14:7.3::core-server-kit] USE="acl apache2 argon2 berkdb bzip2 cgi cli ctype curl fileinfo filter flatfile* fpm gd gdbm iconv intl ipv6 json mysql mysqli nls opcache pcntl pdo phar posix readline session simplexml sockets sodium spell sqlite ssl threads tidy tokenizer truetype unicode xml xmlreader xmlrpc xmlwriter xslt zip zlib -bcmath -calendar -cdb -cjk -coverage -debug -embed -enchant -exif -ffi% -firebird -ftp -gmp -imap -inifile -iodbc -kerberos -ldap -ldap-sasl -libedit -libressl -lmdb -maintainer-zts% -mhash -mssql -oci8-instant-client -odbc -phpdbg -postgres -qdbm (-selinux) -session-mm -sharedmem -snmp -soap -sysvipc -test -tokyocabinet -webp -xpm (-hash%) (-recode%) (-systemd%) (-wddx%) (-zip-encryption%)" 0 KiB
Total: 1 package (1 in new slot), Size of downloads: 0 KiB