remove BUILD_IOUTIL symbol

Add ioutil_stubs.c to provide an empty ioutil_init() routine.
Add ioutil.h to prevent applications from needing to declare it.

Allows unconditionally calling that function during startup, and the
resulting libocdhelper library API is now more stable.

Prints a DEBUG message when the stub implementation is included.

3 files changed, 59 insertions, 0 deletions

diff --git a/src/helper/Makefile.am b/src/helper/Makefile.am
index 22b3c330..01e805eb 100644
--- a/src/helper/Makefile.am
+++ b/src/helper/Makefile.am
@@ -27,6 +27,8 @@ libhelper_la_SOURCES = \
 
 if IOUTIL
 libhelper_la_SOURCES += ioutil.c
+else
+libhelper_la_SOURCES += ioutil_stubs.c
 endif
 
 libhelper_la_CFLAGS =
@@ -38,6 +40,7 @@ endif
 noinst_HEADERS = \
 	binarybuffer.h \
 	configuration.h \
+	ioutil.h \
 	types.h \
 	log.h \
 	command.h \
diff --git a/src/helper/ioutil.h b/src/helper/ioutil.h
new file mode 100644
index 00000000..855ae550
--- /dev/null
+++ b/src/helper/ioutil.h
@@ -0,0 +1,27 @@
+/***************************************************************************
+ *   Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net>             *
+ *                                                                         *
+ *   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.             *
+ ***************************************************************************/
+
+#ifndef HELPER_IOUTILS_H
+#define HELPER_IOUTILS_H
+
+struct command_context;
+
+int ioutil_init(struct command_context *cmd_ctx);
+
+#endif // HELPER_IOUTILS_H
diff --git a/src/helper/ioutil_stubs.c b/src/helper/ioutil_stubs.c
new file mode 100644
index 00000000..1171a6f1
--- /dev/null
+++ b/src/helper/ioutil_stubs.c
@@ -0,0 +1,29 @@
+/***************************************************************************
+ *   Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net>             *
+ *                                                                         *
+ *   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.             *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "ioutil.h"
+
+int ioutil_init(struct command_context *cmd_ctx)
+{
+	LOG_DEBUG("libocdhelper was built without I/O utility support");
+	return ERROR_OK;
+}