binutils-gdb/gnulib/import/m4/glob.m4
Tom Tromey 73cc72729a 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.
2019-06-14 12:40:02 -06:00

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# glob.m4 serial 14
dnl Copyright (C) 2005-2007, 2009-2016 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
# The glob module assumes you want GNU glob, with glob_pattern_p etc,
# rather than vanilla POSIX glob. This means your code should
# always include <glob.h> for the glob prototypes.
AC_DEFUN([gl_GLOB],
[ GLOB_H=
AC_CHECK_HEADERS([glob.h], [], [GLOB_H=glob.h])
if test -z "$GLOB_H"; then
AC_CACHE_CHECK([for GNU glob interface version 1],
[gl_cv_gnu_glob_interface_version_1],
[ AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[[#include <gnu-versions.h>
char a[_GNU_GLOB_INTERFACE_VERSION == 1 ? 1 : -1];]])],
[gl_cv_gnu_glob_interface_version_1=yes],
[gl_cv_gnu_glob_interface_version_1=no])])
if test "$gl_cv_gnu_glob_interface_version_1" = "no"; then
GLOB_H=glob.h
fi
fi
if test -z "$GLOB_H"; then
AC_CACHE_CHECK([whether glob lists broken symlinks],
[gl_cv_glob_lists_symlinks],
[ if ln -s conf-doesntexist conf$$-globtest 2>/dev/null; then
gl_cv_glob_lists_symlinks=maybe
else
# If we can't make a symlink, then we cannot test this issue. Be
# pessimistic about this.
gl_cv_glob_lists_symlinks=no
fi
if test $gl_cv_glob_lists_symlinks = maybe; then
AC_RUN_IFELSE([
AC_LANG_PROGRAM(
[[#include <stddef.h>
#include <glob.h>]],
[[glob_t found;
if (glob ("conf*-globtest", 0, NULL, &found) == GLOB_NOMATCH) return 1;]])],
[gl_cv_glob_lists_symlinks=yes],
[gl_cv_glob_lists_symlinks=no], [gl_cv_glob_lists_symlinks=no])
fi])
if test $gl_cv_glob_lists_symlinks = no; then
GLOB_H=glob.h
fi
fi
rm -f conf$$-globtest
AC_SUBST([GLOB_H])
AM_CONDITIONAL([GL_GENERATE_GLOB_H], [test -n "$GLOB_H"])
])
# Prerequisites of lib/glob.*.
AC_DEFUN([gl_PREREQ_GLOB],
[
AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE])dnl
AC_REQUIRE([AC_C_RESTRICT])dnl
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])dnl
AC_CHECK_HEADERS_ONCE([sys/cdefs.h unistd.h])dnl
if test $ac_cv_header_sys_cdefs_h = yes; then
HAVE_SYS_CDEFS_H=1
else
HAVE_SYS_CDEFS_H=0
fi
AC_SUBST([HAVE_SYS_CDEFS_H])
AC_CHECK_FUNCS_ONCE([fstatat getlogin_r getpwnam_r])dnl
])