refactor(makefile): add PCRE_INCDIR variable (#8433)

Makefile

@@ -80,6 +80,9 @@ ifeq ($(ENV_OS_NAME), darwin)
 	ifeq ($(shell test -d $(ENV_HOMEBREW_PREFIX)/opt/openresty-openssl111 && echo -n yes), yes)
 		ENV_OPENSSL_PREFIX := $(ENV_HOMEBREW_PREFIX)/opt/openresty-openssl111
 	endif
+	ifeq ($(shell test -d $(ENV_HOMEBREW_PREFIX)/opt/pcre && echo -n yes), yes)
+		ENV_PCRE_PREFIX := $(ENV_HOMEBREW_PREFIX)/opt/pcre
+	endif
 endif
 
 
@@ -153,6 +156,7 @@ deps: runtime
 		mkdir -p ~/.luarocks; \
 		$(ENV_LUAROCKS) config $(ENV_LUAROCKS_FLAG_LOCAL) variables.OPENSSL_LIBDIR $(addprefix $(ENV_OPENSSL_PREFIX), /lib); \
 		$(ENV_LUAROCKS) config $(ENV_LUAROCKS_FLAG_LOCAL) variables.OPENSSL_INCDIR $(addprefix $(ENV_OPENSSL_PREFIX), /include); \
+		[ '$(ENV_OS_NAME)' == 'darwin' ] && $(ENV_LUAROCKS) config $(ENV_LUAROCKS_FLAG_LOCAL) variables.PCRE_INCDIR $(addprefix $(ENV_PCRE_PREFIX), /include); \
 		$(ENV_LUAROCKS) install rockspec/apisix-master-0.rockspec --tree=deps --only-deps --local $(ENV_LUAROCKS_SERVER_OPT); \
 	else \
 		$(call func_echo_warn_status, "WARNING: You're not using LuaRocks 3.x; please remove the luarocks and reinstall it via https://raw.githubusercontent.com/apache/apisix/master/utils/linux-install-luarocks.sh"); \