Simplify GOPATH check

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>

bin/check_go_path

@@ -7,8 +7,6 @@ if [ -z "$PWD" ]; then
 	exit 1
 fi
 
-[ -z "$GOPATH" ] && GOPATH="$HOME/go"
-
 while [ ${#} -gt 1 ]; do
 	if [ "$PWD" = "$2" ]; then
 		exit 0

mk/golang.mk

 # golang utilities
 GO_MIN_VERSION = 1.9
 
-# match Go's default GOPATH behaviour
-GOPATH ?= $(HOME)/go
 
 # pre-definitions
 GOCC ?= go
@@ -10,6 +8,9 @@ GOTAGS ?=
 GOFLAGS ?=
 GOTFLAGS ?=
 
+# match Go's default GOPATH behaviour
+export GOPATH ?= $(shell $(GOCC) env GOPATH)
+
 DEPS_GO :=
 TEST_GO :=
 TEST_GO_BUILD :=