Move GCC attribute declarations from pref.h.orig to new file

[pspp-builds.git] / src / libpspp / compiler.h

diff --git a/src/libpspp/compiler.h b/src/libpspp/compiler.h
new file mode 100644 (file)
index 0000000..44f22b3
--- /dev/null
+++ b/src/libpspp/compiler.h
@@ -0,0 +1,47 @@
+/* PSPP - computes sample statistics.
+   Copyright (C) 2006 Free Software Foundation, Inc.
+   Written by Ben Pfaff <blp@gnu.org>.
+
+   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., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA. */
+
+#ifndef COMPILER_H
+#define COMPILER_H 1
+
+/* GNU C allows the programmer to declare that certain functions take
+   printf-like arguments, never return, etc.  Conditionalize these
+   declarations on whether gcc is in use. */
+#if __GNUC__ > 1
+#define ATTRIBUTE(X) __attribute__ (X)
+
+/* Only necessary because of a wart in gnulib's xalloc.h. */
+#define __attribute__(X) __attribute__ (X)
+#else
+#define ATTRIBUTE(X)
+#endif
+
+#define UNUSED ATTRIBUTE ((unused))
+#define NO_RETURN ATTRIBUTE ((noreturn))
+#define PRINTF_FORMAT(FMT, FIRST) ATTRIBUTE ((format (printf, FMT, FIRST)))
+#define SCANF_FORMAT(FMT, FIRST) ATTRIBUTE ((format (scanf, FMT, FIRST)))
+
+/* This attribute was added late in the GCC 2.x cycle. */
+#if __GNUC__ > 2
+#define MALLOC_LIKE ATTRIBUTE ((malloc))
+#else
+#define MALLOC_LIKE
+#endif
+
+#endif /* compiler.h */