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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.
97 lines
2.7 KiB
Plaintext
97 lines
2.7 KiB
Plaintext
# isnand.m4 serial 11
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dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl Check how to get or define isnand().
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AC_DEFUN([gl_FUNC_ISNAND],
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[
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AC_REQUIRE([gl_MATH_H_DEFAULTS])
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ISNAND_LIBM=
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gl_HAVE_ISNAND_NO_LIBM
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if test $gl_cv_func_isnand_no_libm = no; then
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gl_HAVE_ISNAND_IN_LIBM
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if test $gl_cv_func_isnand_in_libm = yes; then
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ISNAND_LIBM=-lm
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fi
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fi
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dnl The variable gl_func_isnand set here is used by isnan.m4.
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if test $gl_cv_func_isnand_no_libm = yes \
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|| test $gl_cv_func_isnand_in_libm = yes; then
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gl_func_isnand=yes
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else
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gl_func_isnand=no
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HAVE_ISNAND=0
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fi
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AC_SUBST([ISNAND_LIBM])
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])
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dnl Check how to get or define isnand() without linking with libm.
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AC_DEFUN([gl_FUNC_ISNAND_NO_LIBM],
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[
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gl_HAVE_ISNAND_NO_LIBM
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gl_func_isnand_no_libm=$gl_cv_func_isnand_no_libm
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if test $gl_cv_func_isnand_no_libm = yes; then
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AC_DEFINE([HAVE_ISNAND_IN_LIBC], [1],
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[Define if the isnan(double) function is available in libc.])
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fi
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])
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dnl Prerequisites of replacement isnand definition. It does not need -lm.
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AC_DEFUN([gl_PREREQ_ISNAND],
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[
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AC_REQUIRE([gl_DOUBLE_EXPONENT_LOCATION])
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])
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dnl Test whether isnand() can be used with libm.
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AC_DEFUN([gl_HAVE_ISNAND_IN_LIBM],
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[
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AC_CACHE_CHECK([whether isnan(double) can be used with libm],
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[gl_cv_func_isnand_in_libm],
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[
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save_LIBS="$LIBS"
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LIBS="$LIBS -lm"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <math.h>
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#if __GNUC__ >= 4
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# undef isnand
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# define isnand(x) __builtin_isnan ((double)(x))
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#elif defined isnan
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# undef isnand
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# define isnand(x) isnan ((double)(x))
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#endif
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double x;]],
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[[return isnand (x);]])],
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[gl_cv_func_isnand_in_libm=yes],
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[gl_cv_func_isnand_in_libm=no])
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LIBS="$save_LIBS"
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])
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])
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AC_DEFUN([gl_HAVE_ISNAND_NO_LIBM],
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[
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AC_CACHE_CHECK([whether isnan(double) can be used without linking with libm],
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[gl_cv_func_isnand_no_libm],
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[
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <math.h>
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#if __GNUC__ >= 4
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# undef isnand
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# define isnand(x) __builtin_isnan ((double)(x))
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#else
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# undef isnand
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# define isnand(x) isnan ((double)(x))
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#endif
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double x;]],
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[[return isnand (x);]])],
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[gl_cv_func_isnand_no_libm=yes],
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[gl_cv_func_isnand_no_libm=no])
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])
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])
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