+# btrfs-progs
+#
+# Basic build targets:
+# all all main tools
+# static build static bnaries, requires static version of the libraries
+# test run the full testsuite
+# install install to default location (/usr/local)
+# clean clean built binaries (not the documentation)
+#
+# Tuning by variables (environment or make arguments):
+# V=1 verbose, print command lines (default: quiet)
+# C=1 run checker before compilation (default checker: sparse)
+# D=1 debugging build, turn off optimizations
+# W=123 build with warnings (default: off)
+# DEBUG_CFLAGS additional compiler flags for debugging build
+# EXTRA_CFLAGS additional compiler flags
+# EXTRA_LDFLAGS additional linker flags
+#
+# Static checkers:
+# CHECKER static checker binary to be called (default: sparse)
+# CHECKER_FLAGS flags to pass to CHECKER, can override CFLAGS
+#
+