fix musl opcache-jit issue

Author: henderkes

build-static.sh

@@ -40,9 +40,9 @@ fi
 # init spc build additional args
 if [ -z "${SPC_OPT_BUILD_ARGS}" ]; then
 	SPC_OPT_BUILD_ARGS=""
-	if [ "${SPC_LIBC}" = "musl" ]; then
-		SPC_OPT_BUILD_ARGS="${SPC_OPT_BUILD_ARGS} --disable-opcache-jit"
-	fi
+fi
+if [ "${SPC_LIBC}" = "musl" ] && [[ "${SPC_OPT_BUILD_ARGS}" != *"--disable-opcache-jit"* ]]; then
+  SPC_OPT_BUILD_ARGS="${SPC_OPT_BUILD_ARGS} --disable-opcache-jit"
 fi
 # init spc download additional args
 if [ -z "${SPC_OPT_DOWNLOAD_ARGS}" ]; then