[php-src] Issue #7914: Building litespeed sapi on riscv64 fails

Issue: https://github.com/php/php-src/issues/7914 Author: andypost ### Description Building with --enable-litespeed on risv64 fails with ``` /usr/lib/gcc/riscv64-alpine-linux-musl/10.3.1/../../../../riscv64-alpine-linux-musl/bin/ld: sapi/litespeed/.libs/lsapilib.o: in function `lsapi_close_connection': /home/buildozer/aports/community/php7/src/php-7.4.20/sapi/litespeed/lsapilib.c:438: undefined reference to `__sync_lock_test_and_set_1' /usr/lib/gcc/riscv64-alpine-linux-musl/10.3.1/../../../../riscv64-alpine-linux-musl/bin/ld: sapi/litespeed/.libs/lsapilib.o: in function `LSAPI_Prefork_Accept_r': /home/buildozer/aports/community/php7/src/php-7.4.20/sapi/litespeed/lsapilib.c:3572: undefined reference to `__sync_lock_test_and_set_1' /usr/lib/gcc/riscv64-alpine-linux-musl/10.3.1/../../../../riscv64-alpine-linux-musl/bin/ld: sapi/litespeed/.libs/lsapilib.o: in function `lsapi_prefork_server_accept': /home/buildozer/aports/community/php7/src/php-7.4.20/sapi/litespeed/lsapilib.c:3157: undefined reference to `__sync_lock_test_and_set_1' collect2: error: ld returned 1 exit status make: *** [Makefile:404: sapi/litespeed/php] Error 1 ``` Debug shows that it caused by usage __sync_lock_test_and_set_1 with constant, see https://gitlab.alpinelinux.org/alpine/aports/-/issues/12775#note_204733 > Two solutions: 1. Get PHP upstream to use something other than ё__sync_lock_test_and_setё if they need to store values other than the immediate constant 1 since GCC upstream explicitly documents that this is not supported on all architectures. 2. Get GCC upstream to support __sync_lock_test_and_set with values other than a immediate constant 1 on the RISC-V architecture (if technically possible). It fails for all supported versions 7.4+ but 8.0+ is priority ### PHP Version PHP 8.0+ ### Operating System Alpinelinux