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authorTom Tromey <tom@tromey.com>2019-05-05 17:35:20 -0600
committerTom Tromey <tom@tromey.com>2019-06-14 12:40:02 -0600
commit73cc72729a184f00bf6fc4d74684a8516ba6b683 (patch)
treee6887d2f33a00c23c4ec054d02b9be9f892da571 /gnulib/import/isnand-nolibm.h
parentf568655424ad268c8c5df3f56e4e19a86b16623d (diff)
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Move gnulib to top level
This patch moves the gdb/gnulib subdirectory to the top level. It adjusts the top-level build system to build gnulib when necessary, and changes gdb to use this. However, gdbserver still builds its own copy of gnulib, just from the new source location. A small hack was needed to ensure that gnulib is only built when gdb is enabled. The Makefile only provides an ordering -- the directory must be mentioned in configdirs to actually be compiled at all. Most of the patch is just a "git mv" of gnulib, though a few minor path adjustments were needed in some files there. Tested by the buildbot. ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * MAINTAINERS: Add gnulib. * gnulib: New directory, move from gdb/gnulib. * configure.ac (host_libs): Add gnulib. * configure: Rebuild. * Makefile.def (host_modules, dependencies): Add gnulib. * Makefile.in: Rebuild. gdb/ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * gnulib: Move directory to top-level. * configure.ac: Don't configure gnulib. * configure: Rebuild. * common/common-defs.h: Use new path to gnulib. * Makefile.in (GNULIB_BUILDDIR): Now ../gnulib. (GNULIB_H): Remove. (INCGNU): Look in new gnulib location. (HFILES_NO_SRCDIR): Remove gnulib files. (SUBDIR, REQUIRED_SUBDIRS): Remove gnulib. (generated_files): Remove GNULIB_H. ($(LIBGNU), all-lib): Remove targets. (distclean): Don't mention GNULIB_BUILDDIR. ($(GNULIB_BUILDDIR)/Makefile): Remove target. gdb/gdbserver/ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * configure.ac: Use new path to gnulib. * configure: Rebuild. * Makefile.in (INCGNU, $(GNULIB_BUILDDIR)/Makefile): Use new path to gnulib. gnulib/ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * update-gnulib.sh: Adjust paths. * Makefile.in: Adjust paths. * configure.ac: Adjust paths. Use ACX_LARGEFILE. * configure: Rebuild.
Diffstat (limited to 'gnulib/import/isnand-nolibm.h')
-rw-r--r--gnulib/import/isnand-nolibm.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/gnulib/import/isnand-nolibm.h b/gnulib/import/isnand-nolibm.h
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+++ b/gnulib/import/isnand-nolibm.h
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+/* Test for NaN that does not need libm.
+ Copyright (C) 2007-2016 Free Software Foundation, Inc.
+
+ 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 3 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, see <http://www.gnu.org/licenses/>. */
+
+#if HAVE_ISNAND_IN_LIBC
+/* Get declaration of isnan macro. */
+# include <math.h>
+# if __GNUC__ >= 4
+ /* GCC 4.0 and newer provides three built-ins for isnan. */
+# undef isnand
+# define isnand(x) __builtin_isnan ((double)(x))
+# else
+# undef isnand
+# define isnand(x) isnan ((double)(x))
+# endif
+#else
+/* Test whether X is a NaN. */
+# undef isnand
+# define isnand rpl_isnand
+extern int isnand (double x);
+#endif