2000-10-06 Benjamin Kosnik <bkoz@purist.soma.redhat.com>

	* src/Makefile.am: Remove OPTIMIZE_CXXFLAGS, WARN_CXXFLAGS,
	CONFIG_CXXFLAGS from here, and move to...
	* src/Makefile.in: Regenerate.
	* Makefile.am: ... here. Clean.
	(OPTIMIZE_CXXFLAGS): Move up Makefile hierarchy to here.
	(WARN_CXXFLAGS): Same.
	(CONFIG_CXXFLAGS): Same.
	* Makefile.in: Regenerate.
	* libsupc++/Makefile.am: Use top-level OPTIMIZE_CXXFLAGS,
	WARN_CXXFLAGS, CONFIG_CXXFLAGS as part of local AM_CXXFLAGS.
	* libsupc++/Makefile.in: Regenerate.

	Change math to libmath.
	* math: Move to libmath, delete.
	* libmath: New directory.
	* libmath/*: Populate.
	* src/Makefile.am (LIBMATH_INCLUDES): Change to libmath.
	(libstdc___la_LIBADD): Same.
	* src/Makefile.in: Regenerate.
	* configure.in: Add AC_OUTPUT for libmath/Makefile.
	* configure: Regenerate.
	* Makefile.am (SUBDIRS): Add libmath.
	* Makefile.in: Regenerate.
	* README (file): Change name.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@36766 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 41 insertions, 0 deletions

diff --git a/libstdc++-v3/libmath/signbitf.c b/libstdc++-v3/libmath/signbitf.c
new file mode 100644
index 00000000000..5e2eee133a4
--- /dev/null
+++ b/libstdc++-v3/libmath/signbitf.c
@@ -0,0 +1,41 @@
+/* Return nonzero value if number is negative. */
+
+/* Copyright (C) 1997-1999 Free Software Foundation, Inc.
+
+   This file is part of the GNU ISO C++ Library.  This library 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, 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this library; see the file COPYING.  If not, write to the Free
+   Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+   USA.
+
+   As a special exception, you may use this file as part of a free software
+   library without restriction.  Specifically, if other files instantiate
+   templates or use macros or inline functions from this file, or you compile
+   this file and link it with other files to produce an executable, this
+   file does not by itself cause the resulting executable to be covered by
+   the GNU General Public License.  This exception does not however
+   invalidate any other reasons why the executable file might be covered by
+   the GNU General Public License.  */
+
+
+#include <math.h>
+#include "mathconf.h"
+
+int
+__signbitf (float x)
+{
+  Int32_t hx;
+
+  GET_FLOAT_WORD (hx, x);
+  return hx & 0x80000000;
+}