1 files changed, 113 insertions, 0 deletions
diff --git a/contrib/bmake/mk/obj.mk b/contrib/bmake/mk/obj.mk
new file mode 100644
index 000000000000..487e25a55b6c
--- /dev/null
+++ b/contrib/bmake/mk/obj.mk
@@ -0,0 +1,113 @@
+# $Id: obj.mk,v 1.16 2020/08/19 17:51:53 sjg Exp $
+#
+#	@(#) Copyright (c) 1999-2010, Simon J. Gerraty
+#
+#	This file is provided in the hope that it will
+#	be of use.  There is absolutely NO WARRANTY.
+#	Permission to copy, redistribute or otherwise
+#	use this file is hereby granted provided that
+#	the above copyright notice and this notice are
+#	left intact.
+#
+#	Please send copies of changes and bug-fixes to:
+#	sjg@crufty.net
+#
+
+.if !target(__${.PARSEFILE:S,bsd.,,}__)
+__${.PARSEFILE:S,bsd.,,}__:
+
+.include <init.mk>
+
+ECHO_TRACE ?= echo
+
+.if ${MK_OBJDIRS} == "no"
+obj:
+objlink:
+objwarn:
+.else
+
+# this has to match how make behaves
+.if defined(MAKEOBJDIRPREFIX) || defined(MAKEOBJDIR)
+.if defined(MAKEOBJDIRPREFIX)
+__objdir:= ${MAKEOBJDIRPREFIX}${.CURDIR}
+.else
+__objdir:= ${MAKEOBJDIR}
+.endif
+.else
+__objdir= ${__objlink}
+.endif
+
+.if defined(OBJMACHINE)
+__objlink=	obj.${MACHINE}
+.else
+__objlink=	obj
+.endif
+
+.if ${MK_AUTO_OBJ} == "yes"
+.-include "auto.obj.mk"
+.endif
+
+.NOPATH:	${__objdir}
+.PHONY:		obj
+
+obj: _SUBDIRUSE
+	@if test ! -d ${__objdir}/.; then \
+		mkdir -p ${__objdir}; \
+		if test ! -d ${__objdir}; then \
+			mkdir ${__objdir}; exit 1; \
+		fi; \
+		${ECHO_TRACE} "[Creating objdir ${__objdir}...]" >&2; \
+	fi
+
+.if !target(_SUBDIRUSE)
+# this just allows us to be included by ourselves
+_SUBDIRUSE:
+.endif
+
+# so we can interact with freebsd makefiles
+.if !target(objwarn)
+objwarn:
+.if ${.OBJDIR} == ${.CURDIR}
+	@echo "Warning Object directory is ${.CURDIR}"
+.elif ${.OBJDIR} != ${__objdir}
+	@echo "Warning Object directory is ${.OBJDIR} vs. ${__objdir}"
+.endif
+.endif
+
+.if !target(objlink)
+objlink:
+.if ${__objdir:T} != ${__objlink}
+	@if test -d ${__objdir}/.; then \
+		${RM} -f ${.CURDIR}/${__objlink}; \
+		${LN} -s ${__objdir} ${.CURDIR}/${__objlink}; \
+		echo "${__objlink} -> ${__objdir}"; \
+	else \
+		echo "No ${__objdir} to link to - do a 'make obj'"; \
+	fi
+.endif
+.endif
+.endif
+
+_CURDIR?= ${.CURDIR}
+_OBJDIR?= ${.OBJDIR}
+
+.if !target(print-objdir)
+print-objdir:
+	@echo ${_OBJDIR}
+.endif
+
+.if !target(whereobj)
+whereobj:
+	@echo ${_OBJDIR}
+.endif
+
+.if !target(destroy)
+.if ${.CURDIR} != ${.OBJDIR}
+destroy:
+	(cd ${_CURDIR} && rm -rf ${_OBJDIR})
+.else
+destroy:  clean
+.endif
+.endif
+
+.endif