put a FLAC__ASSERT wrapper around assert()

include/FLAC/Makefile.am

@@ -1,6 +1,7 @@
 includedir = ${prefix}/include/FLAC
 
 include_HEADERS = all.h \
+	assert.h \
 	encoder.h \
 	file_decoder.h \
 	format.h \

include/FLAC/all.h

@@ -20,6 +20,7 @@
 #ifndef FLAC__ALL_H
 #define FLAC__ALL_H
 
+#include "assert.h"
 #include "encoder.h"
 #include "file_decoder.h"
 #include "format.h"

include/FLAC/assert.h

@@ -0,0 +1,31 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001  Josh Coalson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
+ */
+
+#ifndef FLAC__ASSERT_H
+#define FLAC__ASSERT_H
+
+/* we need this since some compilers (like MSVC) leave asserts on release code (and we don't want to use their ASSERT) */
+#ifdef DEBUG
+#include <assert.h>
+#define FLAC__ASSERT(x) assert(x)
+#else
+#define FLAC__ASSERT(x)
+#endif
+
+#endif