diff --git a/ChangeLog b/ChangeLog
index 7c7bff452ae..4162152ccd0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2011-09-24  Glenn Morris  <rgm@gnu.org>
+
+	* configure.in (CRT_DIR): Fix netbsd/openbsd handling.
+
 2011-09-19  Lars Magne Ingebrigtsen  <larsi@gnus.org>
 
 	* .dir-locals.el: Change the debbugs regexp to allow having the
diff --git a/configure.in b/configure.in
index 63b80e40466..3d92093bedd 100644
--- a/configure.in
+++ b/configure.in
@@ -985,6 +985,7 @@ LIB_MATH=-lm
 LIB_STANDARD=
 START_FILES=
 
+dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
 case $opsys in
   cygwin )
     LIB_MATH=
@@ -1007,14 +1008,10 @@ case $opsys in
     LIB_STANDARD=-lc
     START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
     ;;
+  dnl NB this may be adjusted below.
   netbsd | openbsd )
-    if test -f $CRT_DIR/crti.o; then
-	LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
-        START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
-    else
-	LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
-	START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
-    fi
+    LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
+    START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
     ;;
 esac
 
@@ -1094,6 +1091,19 @@ fi                              # crt_files != ""
 
 AC_SUBST(CRT_DIR)
 
+case $opsys in
+  netbsd | openbsd )
+    if test -f $CRT_DIR/crti.o; then
+
+        test -f $CRT_DIR/crtn.o || \
+          AC_MSG_ERROR([Required file not found: crtn.o])
+
+        LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
+        START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
+    fi
+    ;;
+esac
+
 
 dnl This function definition taken from Gnome 2.0
 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)