diff --git a/Makefile.base b/Makefile.base
index 3cbf518..086c82b 100644
--- a/Makefile.base
+++ b/Makefile.base
@@ -31,7 +31,7 @@ COMP_FLAGS += -DHAVE_WINDOWED_MODE
 # add real-time lib for clock_gettime
 LIBRT = -lrt
 endif
-ifneq ($(UNAME), Darwin) 
+ifneq ($(UNAME), Darwin)
 # OSX doesn't have /proc, TODO check BSD
 COMP_FLAGS += -DHAVE_PROC_FILESYS
 endif
@@ -54,8 +54,8 @@ ifeq ($(UNAME), Darwin) # homebrew
 INSTALL=ginstall
 endif
 
-# NOTE: This is not double assignment. It creates an expression that the 
-# unit tests (e.g.) can evaulate to dynamically set LD_LIBRARY_PATH or 
+# NOTE: This is not double assignment. It creates an expression that the
+# unit tests (e.g.) can evaulate to dynamically set LD_LIBRARY_PATH or
 # DYLD_LIBRARY_PATH to use the locally build libs as they run the tests.
 ifeq ($(UNAME), Darwin) # homebrew
 LD_LIB_PATH=DYLD_LIBRARY_PATH=$(TOPDIR)/src/lib/$(OBJDIR):$(LD_LIBRARY_PATH)
@@ -73,12 +73,12 @@ ARCH_SUFFIX=64
 endif
 
 # where to install files:
-#PREFIX=/usr/local
-PREFIX ?= /tmp/install
-BIN_PREFIX ?= $(PREFIX)/bin
-PERL_PREFIX ?= $(PREFIX)
-MAN_PREFIX ?= $(PREFIX)/share/man
-INC_PREFIX ?= $(PREFIX)/include
+PREFIX=/usr/local
+#PREFIX ?= /tmp/install
+BIN_PREFIX = $(PREFIX)/bin
+PERL_PREFIX = $(PREFIX)
+MAN_PREFIX = $(PREFIX)/share/man
+INC_PREFIX = $(PREFIX)/include
 
 ############################################################
 
@@ -113,7 +113,7 @@ profile::
 	$(MAKE) MODE=profile make-recursive-default-make-target
 test-prof::
 	$(MAKE) MODE=profile make-recursive-test
-test-fast:: 
+test-fast::
 	$(MAKE) FAST=1 make-recursive-test
 valg-fast::
 	$(MAKE) FAST=1 make-recursive-valg
@@ -166,7 +166,7 @@ ifeq ("$(GCC_GTE_48)", "1")
 PEDANTIC += -Wunreachable-code
 endif
 
-ifeq ($(DISABLE_TSC),1) 
+ifeq ($(DISABLE_TSC),1)
   COMP_FLAGS += -DDISABLE_TSC
 endif
 
@@ -226,7 +226,7 @@ run-$(1): $(OBJDIR)/$(1)
 	@echo; echo "###### Running " $(1) "######"; echo
 	$(LD_LIB_PATH) $(RUN_PREFIX) $(OBJDIR)/$(strip $1) $(RUN_ARGS)
 valg-$(1): $(OBJDIR)/$(1)
-	@echo; echo "###### Running " $(1) " (valgrind) ######"; echo 
+	@echo; echo "###### Running " $(1) " (valgrind) ######"; echo
 	$(LD_LIB_PATH) VALG=1 $(RUN_PREFIX) ./valgrind_runner.sh $(OBJDIR)/$(strip $1) $(RUN_ARGS)
 endef
 
@@ -246,7 +246,6 @@ run-$(1): $(OBJDIR)/$(1)
 	@echo; echo "###### Running " $(1) "######"; echo
 	$(LD_LIB_PATH) $(RUN_PREFIX) $(OBJDIR)/$(strip $1) $(RUN_ARGS)
 valg-$(1): $(OBJDIR)/$(1)
-	@echo; echo "###### Running " $(1) " (valgrind) ######"; echo 
+	@echo; echo "###### Running " $(1) " (valgrind) ######"; echo
 	$(LD_LIB_PATH) VALG=1 $(RUN_PREFIX) ./valgrind_runner.sh $(OBJDIR)/$(strip $1) $(RUN_ARGS)
 endef
-
diff --git a/README.build b/README.build
index 8dc203f..3e7c8d8 100644
--- a/README.build
+++ b/README.build
@@ -31,12 +31,17 @@ Compilation:
 NOTE:
   You may need to edit the "Configuration section" of Makefile.base
   for specific locations and options on your platform.
-  
+
 For building on RHEL7 the following will help:
   sudo yum install git gcc\* openssl-devel readline-devel cppunit-devel
 
   If you have yum groups configured correctly:
-  sudo yum group install "Development Tools" 
+  sudo yum group install "Development Tools"
   sudo yum install git openssl-devel readline-devel cppunit-devel rpm-build
 
-
+Troubleshooting:
+  If you see errors "mdbm_*: error while loading shared libraries: libmdbm.so:
+  cannot open shared object file: No such file or directory" while running MDBM
+  command line tools, define the shell variable LD_LIBRARY_PATH to include the
+  directory where the library is installed. For example, define
+  "LD_LIBRARY_PATH="/usr/local/lib64/" in ~/.bashrc.