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Jakub Jelinek adda0248ed intl: Unbreak intl build with bison 3 when no regeneration is needed [PR92008]
As Iain reported, my change broke the case when one has bison >= 3,
but make decides there is no reason to regenerate plural.c, unfortunately
that seems to be a scenario I haven't tested.  The problem is that
the pregenerated plural.c has been generated with bison 1.35, but when
config.h says HAVE_BISON3, the code assumes it is the bison3 variant.
What used to work fine is when one has bison >= 3 and plural.c has been
regenerated (e.g. do touch intl/plural.y and it will work), or when
one doesn't have any bison (then nothing is regenerated, but HAVE_BISON3
isn't defined either), or when one has bison < 3 and doesn't need to
regenerate, or when one has bison < 3 and it is regenerated.

The following patch fixes this, by killing the HAVE_BISON3 macro from
config.h, and instead remembering the fact whether plural.c has been created
with bison < 3 or bison >= 3 in a separate new plural-config.h header.
The way this works:
- user doesn't have bison
- user has bison >= 3, but intl/{plural-config.h,plural.c} aren't older than intl/plural.y
- user has bison < 3, but intl/{plural-config.h,plural.c} aren't older than intl/plural.y
	pregenerated !USE_BISON3 plural.c and plural-config.h from source
	dir is used, nothing in the objdir
- user has bison >= 3 and intl/plural.y is newer
	Makefile generates plural.c and USE_BISON3 plural-config.h in the
	objdir, which is then used in preference to srcdir copies
- user has bison < 3 and intl/plural.y is newer
	Makefile generates plural.c and !USE_BISON3 plural-config.h in the
	objdir, which is then used in preference to srcdir copies
I have tested all these cases and make all-yes worked in all the cases.
If one uses the unsupported ./configure where srcdir == objdir, I guess
(though haven't tested) that it should still work, just it would be nice
if such people didn't try to check in the plural{.c,-config.h} they have
regenerated.
What doesn't work, but didn't work before either (just tested gcc-9 branch
too) is when one doesn't have bison and plural.y is newer than plural.c.
Don't do that ;)

intl/ChangeLog
2020-04-16  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/92008
	* configure.ac: Remove HAVE_BISON3 AC_DEFINE.
	* Makefile.in (HEADERS): Add plural-config.h.
	(.y.c): Also create plural-config.h.
	(dcigettext.o loadmsgcat.o plural.o plural-exp.o): Also depend
	on plural-config.h.
	(plural-config.h): Depend on plural.c.
	* plural-exp.h: Include plural-config.h.  Use USE_BISON3 instead
	of HAVE_BISON3.
	* plural.y: Use USE_BISON3 instead of HAVE_BISON3.
	* configure: Regenerated.
	* plural.c: Regenerated.
	* config.h.in: Regenerated.
	* plural-config.h: Generated.
2021-02-10 15:26:57 +00:00
bfd Automatic date update in version.in 2021-02-10 00:00:16 +00:00
binutils [binutils] Handle presence of both .debug_ranges and .debug_rnglists 2021-02-10 12:30:46 +01:00
config Implement a workaround for GNU mak jobserver 2021-01-12 05:45:44 -08:00
contrib Import mklog.py from gcc repo 2020-09-25 10:24:44 -04:00
cpu Add Changelog entries and NEWS entries for 2.36 branch 2021-01-09 10:40:28 +00:00
elfcpp Add Changelog entries and NEWS entries for 2.36 branch 2021-01-09 10:40:28 +00:00
etc Update year range in copyright notice of binutils files 2021-01-01 10:31:05 +10:30
gas Remove debugging code accidentally included with the fix for PR 27384 2021-02-10 09:56:33 +00:00
gdb gdb: delete SYMBOL_SECTION and MSYMBOL_SECTION macros 2021-02-10 14:38:08 +00:00
gdbserver gnulib: update to 776af40e0 2021-02-05 13:35:20 -05:00
gdbsupport gnulib: update to 776af40e0 2021-02-05 13:35:20 -05:00
gnulib gnulib: update to 776af40e0 2021-02-05 13:35:20 -05:00
gold gold: Skip address size and segment selector for DWARF5 2021-01-28 04:21:31 -08:00
gprof Regen Makefile.in for jobserver.m4 aclocal.m4 dependency 2021-01-13 22:06:02 +10:30
include opcodes: tic54x: namespace exported variables 2021-02-08 18:26:08 -05:00
intl intl: Unbreak intl build with bison 3 when no regeneration is needed [PR92008] 2021-02-10 15:26:57 +00:00
ld Remove arm-symbianelf 2021-02-09 23:36:16 +10:30
libctf libctf: always name nameless types "", never NULL 2021-02-04 16:01:53 +00:00
libdecnumber Run autoreconf -vf throughout 2020-07-29 16:03:55 -04:00
libiberty GCC: Check if AR works with --plugin and rc 2021-01-11 16:26:51 -08:00
opcodes opcodes: tic54x: namespace exported variables 2021-02-08 18:26:08 -05:00
readline Use readline's variant of Windows patch 2021-01-23 09:24:20 -07:00
sim sim/rx: enable build with warnings 2021-02-08 11:01:07 +00:00
texinfo
zlib GCC: Check if AR works with --plugin and rc 2021-01-11 16:26:51 -08:00
.cvsignore
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ar-lib Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ChangeLog Remove arm-symbianelf 2021-02-09 23:36:16 +10:30
compile
config-ml.in Update top level configure files by synchronizing them with gcc. 2018-01-10 15:29:21 +00:00
config.guess Update config.sub and config.guess 2021-01-05 15:55:59 +10:30
config.rpath
config.sub config.sub update broke powerpc-eabivle 2021-01-07 08:56:28 +10:30
configure Remove arm-symbianelf 2021-02-09 23:36:16 +10:30
configure.ac Remove arm-symbianelf 2021-02-09 23:36:16 +10:30
COPYING
COPYING3
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depcomp
djunpack.bat
install-sh
libtool.m4 GCC: Check if AR works with --plugin and rc 2021-01-11 16:26:51 -08:00
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS Move gdbserver to top level 2020-02-07 08:42:25 -07:00
Makefile.def ld: depend on libctf 2021-01-27 11:04:12 +00:00
Makefile.in ld: depend on libctf 2021-01-27 11:04:12 +00:00
Makefile.tpl Support the PGO build for binutils+gdb 2021-01-09 06:51:51 -08:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am Merge autoconf / automake update changes from GCC. 2018-10-31 17:10:56 +00:00
README
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setup.com
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symlink-tree
test-driver Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ylwrap

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.