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73cc72729a
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.
174 lines
6.5 KiB
Plaintext
174 lines
6.5 KiB
Plaintext
# serial 15 -*- Autoconf -*-
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# Enable extensions on systems that normally disable them.
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# Copyright (C) 2003, 2006-2016 Free Software Foundation, Inc.
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from git
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# Autoconf. Perhaps we can remove this once we can assume Autoconf
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# 2.70 or later everywhere, but since Autoconf mutates rapidly
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# enough in this area it's likely we'll need to redefine
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# AC_USE_SYSTEM_EXTENSIONS for quite some time.
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# If autoconf reports a warning
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# warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS
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# or warning: AC_RUN_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS
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# the fix is
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# 1) to ensure that AC_USE_SYSTEM_EXTENSIONS is never directly invoked
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# but always AC_REQUIREd,
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# 2) to ensure that for each occurrence of
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# AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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# or
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# AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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# the corresponding gnulib module description has 'extensions' among
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# its dependencies. This will ensure that the gl_USE_SYSTEM_EXTENSIONS
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# invocation occurs in gl_EARLY, not in gl_INIT.
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# AC_USE_SYSTEM_EXTENSIONS
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# ------------------------
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# Enable extensions on systems that normally disable them,
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# typically due to standards-conformance issues.
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#
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# Remember that #undef in AH_VERBATIM gets replaced with #define by
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# AC_DEFINE. The goal here is to define all known feature-enabling
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# macros, then, if reports of conflicts are made, disable macros that
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# cause problems on some platforms (such as __EXTENSIONS__).
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AC_DEFUN_ONCE([AC_USE_SYSTEM_EXTENSIONS],
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[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
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AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
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AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=])
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if test "$MINIX" = yes; then
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AC_DEFINE([_POSIX_SOURCE], [1],
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[Define to 1 if you need to in order for 'stat' and other
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things to work.])
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AC_DEFINE([_POSIX_1_SOURCE], [2],
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[Define to 2 if the system does not provide POSIX.1 features
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except with this defined.])
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AC_DEFINE([_MINIX], [1],
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[Define to 1 if on MINIX.])
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AC_DEFINE([_NETBSD_SOURCE], [1],
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[Define to 1 to make NetBSD features available. MINIX 3 needs this.])
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fi
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dnl Use a different key than __EXTENSIONS__, as that name broke existing
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dnl configure.ac when using autoheader 2.62.
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AH_VERBATIM([USE_SYSTEM_EXTENSIONS],
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[/* Enable extensions on AIX 3, Interix. */
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#ifndef _ALL_SOURCE
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# undef _ALL_SOURCE
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#endif
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/* Enable general extensions on macOS. */
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#ifndef _DARWIN_C_SOURCE
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# undef _DARWIN_C_SOURCE
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#endif
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/* Enable GNU extensions on systems that have them. */
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#ifndef _GNU_SOURCE
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# undef _GNU_SOURCE
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#endif
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/* Enable threading extensions on Solaris. */
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#ifndef _POSIX_PTHREAD_SEMANTICS
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# undef _POSIX_PTHREAD_SEMANTICS
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#endif
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/* Enable extensions specified by ISO/IEC TS 18661-5:2014. */
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#ifndef __STDC_WANT_IEC_60559_ATTRIBS_EXT__
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# undef __STDC_WANT_IEC_60559_ATTRIBS_EXT__
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#endif
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/* Enable extensions specified by ISO/IEC TS 18661-1:2014. */
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#ifndef __STDC_WANT_IEC_60559_BFP_EXT__
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# undef __STDC_WANT_IEC_60559_BFP_EXT__
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#endif
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/* Enable extensions specified by ISO/IEC TS 18661-2:2015. */
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#ifndef __STDC_WANT_IEC_60559_DFP_EXT__
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# undef __STDC_WANT_IEC_60559_DFP_EXT__
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#endif
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/* Enable extensions specified by ISO/IEC TS 18661-4:2015. */
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#ifndef __STDC_WANT_IEC_60559_FUNCS_EXT__
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# undef __STDC_WANT_IEC_60559_FUNCS_EXT__
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#endif
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/* Enable extensions specified by ISO/IEC TS 18661-3:2015. */
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#ifndef __STDC_WANT_IEC_60559_TYPES_EXT__
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# undef __STDC_WANT_IEC_60559_TYPES_EXT__
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#endif
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/* Enable extensions specified by ISO/IEC TR 24731-2:2010. */
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#ifndef __STDC_WANT_LIB_EXT2__
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# undef __STDC_WANT_LIB_EXT2__
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#endif
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/* Enable extensions specified by ISO/IEC 24747:2009. */
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#ifndef __STDC_WANT_MATH_SPEC_FUNCS__
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# undef __STDC_WANT_MATH_SPEC_FUNCS__
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#endif
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/* Enable extensions on HP NonStop. */
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#ifndef _TANDEM_SOURCE
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# undef _TANDEM_SOURCE
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#endif
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/* Enable X/Open extensions if necessary. HP-UX 11.11 defines
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mbstate_t only if _XOPEN_SOURCE is defined to 500, regardless of
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whether compiling with -Ae or -D_HPUX_SOURCE=1. */
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#ifndef _XOPEN_SOURCE
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# undef _XOPEN_SOURCE
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#endif
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/* Enable general extensions on Solaris. */
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#ifndef __EXTENSIONS__
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# undef __EXTENSIONS__
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#endif
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])
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AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
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[ac_cv_safe_to_define___extensions__],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[
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# define __EXTENSIONS__ 1
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]AC_INCLUDES_DEFAULT])],
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[ac_cv_safe_to_define___extensions__=yes],
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[ac_cv_safe_to_define___extensions__=no])])
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test $ac_cv_safe_to_define___extensions__ = yes &&
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AC_DEFINE([__EXTENSIONS__])
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AC_DEFINE([_ALL_SOURCE])
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AC_DEFINE([_DARWIN_C_SOURCE])
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AC_DEFINE([_GNU_SOURCE])
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AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
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AC_DEFINE([__STDC_WANT_IEC_60559_ATTRIBS_EXT__])
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AC_DEFINE([__STDC_WANT_IEC_60559_BFP_EXT__])
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AC_DEFINE([__STDC_WANT_IEC_60559_DFP_EXT__])
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AC_DEFINE([__STDC_WANT_IEC_60559_FUNCS_EXT__])
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AC_DEFINE([__STDC_WANT_IEC_60559_TYPES_EXT__])
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AC_DEFINE([__STDC_WANT_LIB_EXT2__])
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AC_DEFINE([__STDC_WANT_MATH_SPEC_FUNCS__])
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AC_DEFINE([_TANDEM_SOURCE])
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AC_CACHE_CHECK([whether _XOPEN_SOURCE should be defined],
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[ac_cv_should_define__xopen_source],
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[ac_cv_should_define__xopen_source=no
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[
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#include <wchar.h>
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mbstate_t x;]])],
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[],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[
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#define _XOPEN_SOURCE 500
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#include <wchar.h>
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mbstate_t x;]])],
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[ac_cv_should_define__xopen_source=yes])])])
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test $ac_cv_should_define__xopen_source = yes &&
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AC_DEFINE([_XOPEN_SOURCE], [500])
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])# AC_USE_SYSTEM_EXTENSIONS
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# gl_USE_SYSTEM_EXTENSIONS
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# ------------------------
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# Enable extensions on systems that normally disable them,
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# typically due to standards-conformance issues.
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AC_DEFUN_ONCE([gl_USE_SYSTEM_EXTENSIONS],
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[
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dnl Require this macro before AC_USE_SYSTEM_EXTENSIONS.
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dnl gnulib does not need it. But if it gets required by third-party macros
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dnl after AC_USE_SYSTEM_EXTENSIONS is required, autoconf 2.62..2.63 emit a
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dnl warning: "AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS".
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dnl Note: We can do this only for one of the macros AC_AIX, AC_GNU_SOURCE,
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dnl AC_MINIX. If people still use AC_AIX or AC_MINIX, they are out of luck.
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AC_REQUIRE([AC_GNU_SOURCE])
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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])
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