diff --git a/Makefile b/Makefile
index c3ebfdb7f31b..ce7febcfd0f9 100644
--- a/Makefile
+++ b/Makefile
@@ -62,7 +62,7 @@
 # developer convenience only.  They are intentionally not documented and
 # completely subject to change without notice.
 #
-TGTS=	all all-man buildkernel buildworld checkdpadd clean \
+TGTS=	all all-man buildenv buildkernel buildworld checkdpadd clean \
 	cleandepend cleandir depend distribute distributeworld everything \
 	hierarchy install installcheck installkernel installkernel.debug\
 	reinstallkernel reinstallkernel.debug installworld \
diff --git a/Makefile.inc1 b/Makefile.inc1
index f6227c77fd61..5a9696510e5c 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -457,6 +457,10 @@ WMAKE_TGTS+=	build32
 buildworld: ${WMAKE_TGTS}
 .ORDER: ${WMAKE_TGTS}
 
+buildenv:
+	@echo Entering world for ${TARGET_ARCH}:${TARGET}
+	@cd ${.CURDIR} && env ${WMAKEENV} sh || true
+
 TOOLCHAIN_TGTS=	${WMAKE_TGTS:N_depend:Neverything}
 toolchain: ${TOOLCHAIN_TGTS}
 kernel-toolchain: ${TOOLCHAIN_TGTS:N_includes:N_libraries}