BD-4637: minor macos build script update

scripts/helpers/build_darwin.sh

@@ -12,7 +12,7 @@ echo "Disk space available: ${DISK_AVAIL}G"
 [[ "${DISK_AVAIL}" -lt "${DISK_MIN}" ]] && echo " - You must have at least ${DISK_MIN}GB of available storage to install FIO." && exit 1
 
 echo
-[[ $ARCH == "Darwin" && $OS_MAJ -lt 14 ]] && echo " - You must be running 14.0 or higher to build FIO." && exit 1
+[[ $ARCH == "Darwin" && ( $OS_MAJ -ne 11 && $OS_MAJ -ne 14 ) ]] && echo " - You must be running MacOS 11.0 or 14.0 to build FIO." && exit 1
 
 echo "${COLOR_CYAN}[Ensuring xcode-select installation]${COLOR_NC}"
 if ! XCODESELECT=$( command -v xcode-select ); then echo " - xcode-select must be installed in order to proceed!" && exit 1;
@@ -31,7 +31,7 @@ if [ ! -d /usr/local/Frameworks ]; then
 fi
 
 # Apply patches to fio fc and yubihsm submodules for MacOS Darwin 14+ openssl compatibility
-[[ $OS_MAJ -ge 14 ]] && apply-fio-darwin14-patches && echo
+[[ $OS_MAJ -eq 14 ]] && apply-fio-darwin14-patches && echo
 
 # Handle clang/compiler
 ensure-compiler