--- a/src/buffer.c
+++ b/src/buffer.c
@@ -222,9 +222,7 @@ open_buffer(
 
     // Read the file if there is one.
     if (curbuf->b_ffname != NULL
-#ifdef FEAT_QUICKFIX
 	    && !bt_quickfix(curbuf)
-#endif
 	    && !bt_nofilename(curbuf)
 #ifdef FEAT_NETBEANS_INTG
 	    && netbeansReadFile
@@ -1328,11 +1326,7 @@ do_buffer_ext(
 	return FAIL;
     }
 #ifdef FEAT_PROP_POPUP
-    if ((flags & DOBUF_NOPOPUP) && bt_popup(buf)
-# ifdef FEAT_TERMINAL
-				&& !bt_terminal(buf)
-#endif
-       )
+    if ((flags & DOBUF_NOPOPUP) && bt_popup(buf) && !bt_terminal(buf))
 	return OK;
 #endif
 
@@ -1445,11 +1439,7 @@ do_buffer_ext(
 		{
 		    // Skip current and unlisted bufs.  Also skip a quickfix
 		    // buffer, it might be deleted soon.
-		    if (buf == curbuf || !buf->b_p_bl
-#if defined(FEAT_QUICKFIX)
-			    || bt_quickfix(buf)
-#endif
-			    )
+		    if (buf == curbuf || !buf->b_p_bl || bt_quickfix(buf))
 			buf = NULL;
 		    else if (buf->b_ml.ml_mfp == NULL)
 		    {
@@ -1487,10 +1477,7 @@ do_buffer_ext(
 		}
 		// in non-help buffer, try to skip help buffers, and vv
 		if (buf->b_help == curbuf->b_help && buf->b_p_bl
-#if defined(FEAT_QUICKFIX)
-			    && !bt_quickfix(buf)
-#endif
-			   )
+			    && !bt_quickfix(buf))
 		{
 		    if (buf->b_ml.ml_mfp != NULL)   // found loaded buffer
 			break;
@@ -1508,11 +1495,7 @@ do_buffer_ext(
 	if (buf == NULL)	// No loaded buffer, find listed one
 	{
 	    FOR_ALL_BUFFERS(buf)
-		if (buf->b_p_bl && buf != curbuf
-#if defined(FEAT_QUICKFIX)
-			    && !bt_quickfix(buf)
-#endif
-		       )
+		if (buf->b_p_bl && buf != curbuf && !bt_quickfix(buf))
 		    break;
 	}
 	if (buf == NULL)	// Still no buffer, just take one
@@ -1521,10 +1504,8 @@ do_buffer_ext(
 		buf = curbuf->b_next;
 	    else
 		buf = curbuf->b_prev;
-#if defined(FEAT_QUICKFIX)
 	    if (bt_quickfix(buf))
 		buf = NULL;
-#endif
 	}
     }
 
@@ -1987,9 +1968,7 @@ curbuf_reusable(void)
 	&& curbuf->b_ffname == NULL
 	&& curbuf->b_nwindows <= 1
 	&& (curbuf->b_ml.ml_mfp == NULL || BUFEMPTY())
-#if defined(FEAT_QUICKFIX)
 	&& !bt_quickfix(curbuf)
-#endif
 	&& !curbufIsChanged());
 }
 
@@ -3787,15 +3766,9 @@ fileinfo(
     vim_snprintf_add(buffer, IOSIZE, "\"%s%s%s%s%s%s",
 	    curbufIsChanged() ? (shortmess(SHM_MOD)
 					  ?  " [+]" : _(" [Modified]")) : " ",
-	    (curbuf->b_flags & BF_NOTEDITED)
-#ifdef FEAT_QUICKFIX
-		    && !bt_dontwrite(curbuf)
-#endif
+	    (curbuf->b_flags & BF_NOTEDITED) && !bt_dontwrite(curbuf)
 					? _("[Not edited]") : "",
-	    (curbuf->b_flags & BF_NEW)
-#ifdef FEAT_QUICKFIX
-		    && !bt_dontwrite(curbuf)
-#endif
+	    (curbuf->b_flags & BF_NEW) && !bt_dontwrite(curbuf)
 					   ? new_file_message() : "",
 	    (curbuf->b_flags & BF_READERR) ? _("[Read errors]") : "",
 	    curbuf->b_p_ro ? (shortmess(SHM_RO) ? _("[RO]")
@@ -5676,27 +5649,31 @@ bt_normal(buf_T *buf)
     return buf != NULL && buf->b_p_bt[0] == NUL;
 }
 
-#if defined(FEAT_QUICKFIX) || defined(PROTO)
 /*
  * Return TRUE if "buf" is the quickfix buffer.
  */
     int
 bt_quickfix(buf_T *buf)
 {
+#ifdef FEAT_QUICKFIX
     return buf != NULL && buf->b_p_bt[0] == 'q';
+#else
+    return FALSE;
+#endif
 }
-#endif
-
-#if defined(FEAT_TERMINAL) || defined(PROTO)
+
 /*
  * Return TRUE if "buf" is a terminal buffer.
  */
     int
 bt_terminal(buf_T *buf)
 {
+#if defined(FEAT_TERMINAL)
     return buf != NULL && buf->b_p_bt[0] == 't';
+#else
+    return FALSE;
+#endif
 }
-#endif
 
 /*
  * Return TRUE if "buf" is a help buffer.
@@ -5764,7 +5741,6 @@ bt_dontwrite(buf_T *buf)
 		 || buf->b_p_bt[0] == 'p');
 }
 
-#if defined(FEAT_QUICKFIX) || defined(PROTO)
     int
 bt_dontwrite_msg(buf_T *buf)
 {
@@ -5775,7 +5751,6 @@ bt_dontwrite_msg(buf_T *buf)
     }
     return FALSE;
 }
-#endif
 
 /*
  * Return TRUE if the buffer should be hidden, according to 'hidden', ":hide"