From 424a3dfb55d94ed0d59c57832f373afbfd8cdb2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Sat, 24 Nov 2018 08:30:59 +0100
Subject: Add a warning to not edit env.mk

---
 core/erlc.mk     | 1 +
 plugins/c_src.mk | 1 +
 2 files changed, 2 insertions(+)

diff --git a/core/erlc.mk b/core/erlc.mk
index 353f13b..39d1553 100644
--- a/core/erlc.mk
+++ b/core/erlc.mk
@@ -259,6 +259,7 @@ define makedep.erl
 		end
 	end,
 	ok = file:write_file("$(1)", [
+		"# Generated by Erlang.mk. Edit at your own risk!\n\n",
 		[[F, "::", [[" ", D] || D <- Deps], "; @touch \$$@\n"] || {F, Deps} <- Depend],
 		"\nCOMPILE_FIRST +=", [[" ", TargetPath(CF)] || CF <- CompileFirst], "\n"
 	]),
diff --git a/plugins/c_src.mk b/plugins/c_src.mk
index f9b10ad..11b1f79 100644
--- a/plugins/c_src.mk
+++ b/plugins/c_src.mk
@@ -126,6 +126,7 @@ ifneq ($(wildcard $(C_SRC_DIR)),)
 $(C_SRC_ENV):
 	$(verbose) $(ERL) -eval "file:write_file(\"$(call core_native_path,$(C_SRC_ENV))\", \
 		io_lib:format( \
+			\"# Generated by Erlang.mk. Edit at your own risk!~n~n\" \
 			\"ERTS_INCLUDE_DIR ?= ~s/erts-~s/include/~n\" \
 			\"ERL_INTERFACE_INCLUDE_DIR ?= ~s~n\" \
 			\"ERL_INTERFACE_LIB_DIR ?= ~s~n\", \
-- 
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