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-rw-r--r--make_helpers/build_env.mk72
1 files changed, 72 insertions, 0 deletions
diff --git a/make_helpers/build_env.mk b/make_helpers/build_env.mk
new file mode 100644
index 0000000..83093bd
--- /dev/null
+++ b/make_helpers/build_env.mk
@@ -0,0 +1,72 @@
+#
+# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+# This file contains the logic to identify and include any relevant
+# build environment specific make include files.
+
+ifndef BUILD_ENV_MK
+ BUILD_ENV_MK := $(lastword $(MAKEFILE_LIST))
+
+ # Block possible built-in command definitions that are not fully portable.
+ # This traps occurences that need replacing with our OS portable macros
+ COPY := $$(error "Replace COPY with call to SHELL_COPY or SHELL_COPY_TREE.")
+ CP := $$(error "Replace CP with call to SHELL_COPY or SHELL_COPY_TREE.")
+ DEL := $$(error "Replace DEL with call to SHELL_DELETE.")
+ MD := $$(error "Replace MD with call to MAKE_PREREQ_DIR.")
+ MKDIR := $$(error "Replace MKDIR with call to MAKE_PREREQ_DIR.")
+ RD := $$(error "Replace RD with call to SHELL_REMOVE_DIR.")
+ RM := $$(error "Replace RM with call to SHELL_DELETE.")
+ RMDIR := $$(error "Replace RMDIR with call to SHELL_REMOVE_DIR.")
+
+ ENV_FILE_TO_INCLUDE := unix.mk
+ ifdef OSTYPE
+ ifneq ($(findstring ${OSTYPE}, cygwin),)
+ ENV_FILE_TO_INCLUDE := cygwin.mk
+ else
+ ifneq ($(findstring ${OSTYPE}, MINGW32 mingw msys),)
+ ENV_FILE_TO_INCLUDE := msys.mk
+ endif
+ endif
+ else
+ ifdef MSYSTEM
+ # Although the MINGW MSYS shell sets OSTYPE as msys in its environment,
+ # it does not appear in the GNU make view of environment variables.
+ # We use MSYSTEM as an alternative, as that is seen by make
+ ifneq ($(findstring ${MSYSTEM}, MINGW32 mingw msys),)
+ OSTYPE ?= msys
+ ENV_FILE_TO_INCLUDE := msys.mk
+ endif
+ else
+ ifdef OS
+ ifneq ($(findstring ${OS}, Windows_NT),)
+ ENV_FILE_TO_INCLUDE := windows.mk
+ endif
+ endif
+ endif
+ endif
+ include ${MAKE_HELPERS_DIRECTORY}${ENV_FILE_TO_INCLUDE}
+ ENV_FILE_TO_INCLUDE :=
+
+ ifndef SHELL_COPY
+ $(error "SHELL_COPY not defined for build environment.")
+ endif
+ ifndef SHELL_COPY_TREE
+ $(error "SHELL_COPY_TREE not defined for build environment.")
+ endif
+ ifndef SHELL_DELETE_ALL
+ $(error "SHELL_DELETE_ALL not defined for build environment.")
+ endif
+ ifndef SHELL_DELETE
+ $(error "SHELL_DELETE not defined for build environment.")
+ endif
+ ifndef MAKE_PREREQ_DIR
+ $(error "MAKE_PREREQ_DIR not defined for build environment.")
+ endif
+ ifndef SHELL_REMOVE_DIR
+ $(error "SHELL_REMOVE_DIR not defined for build environment.")
+ endif
+
+endif