diff --git a/configure b/configure
index 41d1c82..2df6033 100755
--- a/configure
+++ b/configure
@@ -50,7 +50,7 @@ dbm_include="not found"
 dbm_link="not found"
 dbm_defines=""
 
-for dir in /usr/include /usr/include/db1 /usr/include/gdbm /usr/local/include; do
+for dir in `$CC -xc -E -v /dev/null 2>&1 | sed -e '1,/#include <...>/d' -e '/End of search list./,$d'` /usr/include /usr/include/db1 /usr/include/gdbm /usr/local/include ; do
   if test -f $dir/ndbm.h; then
     dbm_include=$dir
     dbm_defines="-DDBM_COMPAT"