diff --git a/lib/Makefile.b32 b/lib/Makefile.b32
index 507a08912326ed0c8ed4722f7e3dc6cff44d5f48..eec7541be6d175d2316a2cbad61eb342b5729b65 100644
--- a/lib/Makefile.b32
+++ b/lib/Makefile.b32
@@ -10,9 +10,10 @@
 #  Written by Jaepil Kim, pit@paradise.net.nz
 ############################################################
 
-# Check if BCCDIR is set.
-!if !$d(BCCDIR)
-!error BCCDIR not defined
+# Borland's $(MAKEDIR) expands to the path where make.exe is located,
+# use this feature to define BCCDIR when user has not defined BCCDIR.
+!if "$(BCCDIR)" == ""
+BCCDIR = $(MAKEDIR)\..
 !endif
 
 # Edit the path below to point to the base of your Zlib sources.
diff --git a/src/Makefile.b32 b/src/Makefile.b32
index 2f0a0779457c83a46bf9d56f847280a083a4e4b8..53e9f2d05dc275f20a0ced6c3929353cc1b786a6 100644
--- a/src/Makefile.b32
+++ b/src/Makefile.b32
@@ -10,9 +10,10 @@
 #  Written by Jaepil Kim, pit@paradise.net.nz
 ############################################################
 
-# Check if BCCDIR is set.
-!if !$d(BCCDIR)
-!error BCCDIR not defined
+# Borland's $(MAKEDIR) expands to the path where make.exe is located,
+# use this feature to define BCCDIR when user has not defined BCCDIR.
+!if "$(BCCDIR)" == ""
+BCCDIR = $(MAKEDIR)\..
 !endif
 
 # Edit the path below to point to the base of your Zlib sources.