diff --git a/base/mk/lib.mk b/base/mk/lib.mk
index bbcd34b42..e22fe8a77 100644
--- a/base/mk/lib.mk
+++ b/base/mk/lib.mk
@@ -174,5 +174,5 @@ $(LIB_SO): $(STATIC_LIBS) $(OBJECTS) $(wildcard $(LD_SCRIPT_SO))
 	                $(LIBGCC)
 
 $(INSTALL_SO):
-	$(VERBOSE)ln -sf `pwd`/$(LIB_SO) $@
+	$(VERBOSE)ln -sf $(CURDIR)/$(LIB_SO) $@
 
diff --git a/base/mk/prg.mk b/base/mk/prg.mk
index e2faa0de8..40a512da5 100644
--- a/base/mk/prg.mk
+++ b/base/mk/prg.mk
@@ -190,7 +190,7 @@ $(TARGET): $(LINK_ITEMS) $(wildcard $(LD_SCRIPTS))
 	$(VERBOSE)libs=$(LIB_CACHE_DIR); $(LD_CMD) -o $@
 
 $(INSTALL_DIR)/$(TARGET): $(TARGET)
-	$(VERBOSE)ln -sf `pwd`/$(TARGET) $@
+	$(VERBOSE)ln -sf $(CURDIR)/$(TARGET) $@
 else
 $(TARGET):
 $(INSTALL_DIR)/$(TARGET): $(TARGET)
diff --git a/tool/builddir/build.mk b/tool/builddir/build.mk
index ab93a86dd..567e44fe1 100644
--- a/tool/builddir/build.mk
+++ b/tool/builddir/build.mk
@@ -37,9 +37,8 @@
 
 -include etc/build.conf
 
-PWD            := $(shell pwd)
-BUILD_BASE_DIR := $(PWD)
-INSTALL_DIR    := $(PWD)/bin
+BUILD_BASE_DIR := $(CURDIR)
+INSTALL_DIR    := $(CURDIR)/bin
 
 export BASE_DIR         ?= ../base
 export REPOSITORIES     ?= $(BASE_DIR:%base=%base-linux) $(BASE_DIR)