Add new version of buildroot

buildroot/Makefile.legacy

@@ -0,0 +1,59 @@
+#
+# Makefile.legacy - support for backward compatibility
+#
+# This file contains placeholders to detect backward-compatibility problems.
+# When a buildroot "API" feature is being deprecated, a rule should be added
+# here that issues an error when the old feature is used.
+
+ifeq ($(BR2_LEGACY),y)
+$(error "You have legacy configuration in your .config! Please check your configuration.")
+endif
+
+#
+# Legacy options from 2014.02
+#
+
+# The BUILDROOT_DL_DIR environment variable was renamed by BR2_DL_DIR. We
+# want to detect someone using the old variable, _except_ if also the new
+# variable was set. By the time we get here, however, we no longer have
+# access to the BR2_DL_DIR environment variable (because it has been overridden
+# by the .config inclusion). However, the environment variable (if defined) was
+# saved in DL_DIR, so we can use that.
+ifneq ($(BUILDROOT_DL_DIR),)
+ifneq ($(BUILDROOT_DL_DIR),$(DL_DIR))
+$(error "The BUILDROOT_DL_DIR environment variable was renamed to BR2_DL_DIR.")
+endif
+endif
+
+# If a script is using the deprecated BUILDROOT_CONFIG, make sure it fails.
+# Add some directories in front just in case someone used dirname on it.
+BUILDROOT_CONFIG_FAKE = /tmp/deprecated/The-BUILDROOT_CONFIG-environment-variable-was-renamed-to-BR2_CONFIG
+
+# Similar to above for BUILDROOT_CONFIG, but here we have no .config equivalent.
+ifneq ($(BUILDROOT_CONFIG),)
+ifneq ($(BUILDROOT_CONFIG),$(BR2_CONFIG))
+ifneq ($(BUILDROOT_CONFIG),$(BUILDROOT_CONFIG_FAKE))
+$(error "The BUILDROOT_CONFIG environment variable was renamed to BR2_CONFIG.")
+endif
+endif
+endif
+
+BUILDROOT_CONFIG = $(BUILDROOT_CONFIG_FAKE)
+export BUILDROOT_CONFIG
+
+#
+# Legacy options from 2012.08
+#
+
+host-pkg-config:
+	@$(call MESSAGE,host-pkg-config is replaced by host-pkgconf)
+	@$(call MESSAGE,please update your .mk files)
+	@false
+.PHONY: host-pkg-config
+
+#
+# Legacy options from 2012.05
+#
+GENTARGETS = $$(error The GENTARGETS macro no longer exists; use $$$$(eval $$$$(generic-package)) or $$$$(eval $$$$(host-generic-package)))
+AUTOTARGETS = $$(error The AUTOTARGETS macro no longer exists; use $$$$(eval $$$$(autotools-package)) or $$$$(eval $$$$(host-autotools-package)))
+CMAKETARGETS = $$(error The CMAKETARGETS macro no longer exists; use $$$$(eval $$$$(cmake-package)) or $$$$(eval $$$$(host-cmake-package)))

buildroot/README

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+Buildroot is a simple, efficient and easy-to-use tool to generate embedded
+Linux systems through cross-compilation.
+
+The documentation can be found in docs/manual. You can generate a text
+document with 'make manual-text' and read output/docs/manual/manual.text.
+Online documentation can be found at http://buildroot.org/docs.html
+
+To build and use the buildroot stuff, do the following:
+
+1) run 'make menuconfig'
+2) select the target architecture and the packages you wish to compile
+3) run 'make'
+4) wait while it compiles
+5) find the kernel, bootloader, root filesystem, etc. in output/images
+
+You do not need to be root to build or run buildroot.  Have fun!
+
+Buildroot comes with a basic configuration for a number of boards. Run
+'make list-defconfigs' to view the list of provided configurations.
+
+Please feed suggestions, bug reports, insults, and bribes back to the
+buildroot mailing list: buildroot@buildroot.org
+You can also find us on #buildroot on OFTC IRC.
+
+If you would like to contribute patches, please read
+https://buildroot.org/manual.html#submitting-patches