Provide and use compiler-dependent standard headers.

This branch provides implementations of the following standard headers:
<float.h> <stdarg.h> <stdbool.h> <stddef.h> <varargs.h>
These are the headers that are provided by GCC and Clang, as opposed
to being provided by Glibc and similar C standard libraries.

Configuration flag "-no-standard-headers" deactivates the installation
and use of these headers.

Lightly tested so far (IA32 Linux).

1 files changed, 39 insertions, 0 deletions

diff --git a/runtime/include/stdbool.h b/runtime/include/stdbool.h
new file mode 100644
index 00000000..b9ff9399
--- /dev/null
+++ b/runtime/include/stdbool.h
@@ -0,0 +1,39 @@
+/* This file is part of the Compcert verified compiler.
+ *
+ * Copyright (c) 2015 Institut National de Recherche en Informatique et
+ *  en Automatique.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the <organization> nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+ * HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* <stdbool.h> -- Boolean type and values (ISO C99 7.16) */
+
+#ifndef _STDBOOL_H
+#define _STDBOOL_H
+
+#define bool _Bool
+#define true 1
+#define false 0
+
+#endif