Convert utility.c into libbb.a.  It is now a whole pile of .c
files.  Clean up the resulting damage and fix up the makefile.
 -Erik
diff --git a/libbb/isdirectory.c b/libbb/isdirectory.c
new file mode 100644
index 0000000..65f4fee
--- /dev/null
+++ b/libbb/isdirectory.c
@@ -0,0 +1,71 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) tons of folks.  Tracking down who wrote what
+ * isn't something I'm going to worry about...  If you wrote something
+ * here, please feel free to acknowledge your work.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Based in part on code from sash, Copyright (c) 1999 by David I. Bell 
+ * Permission has been granted to redistribute this code under the GPL.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include "libbb.h"
+
+/*
+ * Return TRUE if a fileName is a directory.
+ * Nonexistant files return FALSE.
+ */
+int is_directory(const char *fileName, const int followLinks, struct stat *statBuf)
+{
+	int status;
+	int didMalloc = 0;
+
+	if (statBuf == NULL) {
+	    statBuf = (struct stat *)xmalloc(sizeof(struct stat));
+	    ++didMalloc;
+	}
+
+	if (followLinks == TRUE)
+		status = stat(fileName, statBuf);
+	else
+		status = lstat(fileName, statBuf);
+
+	if (status < 0 || !(S_ISDIR(statBuf->st_mode))) {
+	    status = FALSE;
+	}
+	else status = TRUE;
+
+	if (didMalloc) {
+	    free(statBuf);
+	    statBuf = NULL;
+	}
+	return status;
+}
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/