From 6d2d5c68372a2e10f747b01cb4d1316ba8fd11eb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89milie=20Feral?= <emilie.feral@numworks.com>
Date: Fri, 7 Feb 2020 10:25:51 +0100
Subject: [PATCH] [build] Add confirmation before building official softwares

---
 Makefile       | 4 ++--
 build/rules.mk | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 8f8af5d51..8594beee0 100644
--- a/Makefile
+++ b/Makefile
@@ -21,11 +21,11 @@ endef
 
 define rule_for
 ifeq ($(strip $(5)),with_local_version)
-$(addprefix $$(BUILD_DIR)/,$(strip $(2))): $(addprefix $$(BUILD_DIR)/,$(strip $(3)))
+$(addprefix $$(BUILD_DIR)/,$(strip $(2))): $(addprefix $$(BUILD_DIR)/,$(strip $(3))) | $(if $(findstring official,${MAKECMDGOALS}),official_authorization)
 	@ echo "$(shell printf "%-8s" $(strip $(1)))$$(@:$$(BUILD_DIR)/%=%)"
 	$(Q) $(4)
 endif
-$(addprefix $$(BUILD_DIR)/,$(strip $(2))): $(strip $(3)) | $$$$(@D)/.
+$(addprefix $$(BUILD_DIR)/,$(strip $(2))): $(strip $(3)) | $$$$(@D)/. $(if $(findstring official,${MAKECMDGOALS}),official_authorization)
 	@ echo "$(shell printf "%-8s" $(strip $(1)))$$(@:$$(BUILD_DIR)/%=%)"
 	$(Q) $(4)
 endef
diff --git a/build/rules.mk b/build/rules.mk
index 2092a831e..242dc13ea 100644
--- a/build/rules.mk
+++ b/build/rules.mk
@@ -1,5 +1,9 @@
 # Define standard compilation rules
 
+.PHONY: official_authorization
+official_authorization:
+	@echo "CAUTION: You are about to build an official NumWorks firmware. Distribution of such firmware by a third party is prohibited. Are you sure you want to proceed? Please type "yes" to confirm." && read ans && [ $${ans:-no} = yes ]
+
 $(eval $(call rule_for, \
   AS, %.o, %.s, \
   $$(CC) $$(SFLAGS) -c $$< -o $$@ \