*: add modern gettext

This patch updates gettext.m4 and related .m4 files and adds
gettext-runtime as a gmp/mpfr/... style host library, allowing newer
libintl to be used.

This patch /does not/ add build-time tools required for
internationalizing (msgfmt et al), instead, it just updates the runtime
library.  The result should be a distribution that acts exactly the same
when a copy of gettext is present, and disables internationalization
otherwise.

There should be no changes in behavior when gettext is included in-tree.
When gettext is not included in tree, nor available on the system, the
programs will be built without localization.

ChangeLog:

	PR bootstrap/12596
	* .gitignore: Add '/gettext*'.
	* configure.ac (host_libs): Replace intl with gettext.
	(hbaseargs, bbaseargs, baseargs): Split baseargs into
	{h,b}baseargs.
	(skip_barg): New flag.  Skips appending current flag to
	bbaseargs.
	<library exemptions>: Exempt --with-libintl-{type,prefix} from
	target and build machine argument passing.
	* configure: Regenerate.
	* Makefile.def (host_modules): Replace intl module with gettext
	module.
	(configure-ld): Depend on configure-gettext.
	* Makefile.in: Regenerate.

config/ChangeLog:

	* intlmacosx.m4: Import from gettext-0.22 (serial 8).
	* gettext.m4: Sync with gettext-0.22 (serial 77).
	* gettext-sister.m4 (ZW_GNU_GETTEXT_SISTER_DIR): Load gettext's
	uninstalled-config.sh, or call AM_GNU_GETTEXT if missing.
	* iconv.m4: Sync with gettext-0.22 (serial 26).

contrib/ChangeLog:

	* prerequisites.sha512: Add gettext.
	* prerequisites.md5: Add gettext.
	* download_prerequisites: Add gettext.

gcc/ChangeLog:

	* configure: Regenerate.
	* aclocal.m4: Regenerate.
	* Makefile.in (LIBDEPS): Remove (potential) ./ prefix from
	LIBINTL_DEP.
	* doc/install.texi: Document new (notable) flags added by the
	optional gettext tree and by AM_GNU_GETTEXT.  Document libintl/libc
	with gettext dependency.

libcpp/ChangeLog:

	* configure: Regenerate.
	* aclocal.m4: Regenerate.

libstdc++-v3/ChangeLog:

	* configure: Regenerate.

1 files changed, 39 insertions, 33 deletions

diff --git a/Makefile.def b/Makefile.def
index 15c068e4ac4..792f81447e1 100644
--- a/Makefile.def
+++ b/Makefile.def
@@ -74,8 +74,14 @@ host_modules= { module= isl; lib_path=.libs; bootstrap=true;
 host_modules= { module= gold; bootstrap=true; };
 host_modules= { module= gprof; };
 host_modules= { module= gprofng; };
-// intl acts on 'host_shared' directly, and does not support --with-pic.
-host_modules= { module= intl; bootstrap=true; };
+host_modules= { module= gettext; bootstrap=true; no_install=true;
+                module_srcdir= "gettext/gettext-runtime";
+		// We always build gettext with pic, because some packages (e.g. gdbserver)
+		// need it in some configuratons, which is determined via nontrivial tests.
+		// Always enabling pic seems to make sense for something tied to
+		// user-facing output.
+                extra_configure_flags='--disable-shared --disable-java --disable-csharp --with-pic';
+                lib_path=intl/.libs; };
 host_modules= { module= tcl;
                 missing=mostlyclean; };
 host_modules= { module= itcl; };
@@ -345,7 +351,7 @@ dependencies = { module=all-build-fixincludes; on=all-build-libiberty; };
 dependencies = { module=all-build-libcpp; on=all-build-libiberty; };
 
 // Host modules specific to gcc.
-dependencies = { module=configure-gcc; on=configure-intl; };
+dependencies = { module=configure-gcc; on=configure-gettext; };
 dependencies = { module=configure-gcc; on=all-gmp; };
 dependencies = { module=configure-gcc; on=all-mpfr; };
 dependencies = { module=configure-gcc; on=all-mpc; };
@@ -357,7 +363,7 @@ dependencies = { module=configure-gcc; on=all-ld; };
 dependencies = { module=configure-gcc; on=all-gold; };
 dependencies = { module=configure-gcc; on=all-libiconv; };
 dependencies = { module=all-gcc; on=all-libiberty; hard=true; };
-dependencies = { module=all-gcc; on=all-intl; };
+dependencies = { module=all-gcc; on=all-gettext; };
 dependencies = { module=all-gcc; on=all-mpfr; };
 dependencies = { module=all-gcc; on=all-mpc; };
 dependencies = { module=all-gcc; on=all-isl; };
@@ -386,10 +392,10 @@ dependencies = { module=install-strip-gcc ; on=install-strip-fixincludes; };
 dependencies = { module=install-strip-gcc ; on=install-strip-lto-plugin; };
 
 dependencies = { module=configure-libcpp; on=configure-libiberty; hard=true; };
-dependencies = { module=configure-libcpp; on=configure-intl; };
+dependencies = { module=configure-libcpp; on=configure-gettext; };
 dependencies = { module=configure-libcpp; on=all-libiconv; };
 dependencies = { module=all-libcpp; on=all-libiberty; hard=true; };
-dependencies = { module=all-libcpp; on=all-intl; };
+dependencies = { module=all-libcpp; on=all-gettext; };
 dependencies = { module=all-libcpp; on=all-libiconv; };
 
 dependencies = { module=all-fixincludes; on=all-libiberty; };
@@ -411,16 +417,16 @@ dependencies = { module=all-gotools; on=all-target-libgo; };
 
 dependencies = { module=all-utils; on=all-libiberty; };
 
-dependencies = { module=configure-intl; on=all-libiconv; };
+dependencies = { module=configure-gettext; on=all-libiconv; };
 dependencies = { module=configure-mpfr; on=all-gmp; };
 dependencies = { module=configure-mpc; on=all-mpfr; };
 dependencies = { module=configure-isl; on=all-gmp; };
-dependencies = { module=all-intl; on=all-libiconv; };
+dependencies = { module=all-gettext; on=all-libiconv; };
 
 // Host modules specific to gdb.
 dependencies = { module=configure-gdb; on=all-gmp; };
 dependencies = { module=configure-gdb; on=all-mpfr; };
-dependencies = { module=configure-gdb; on=all-intl; };
+dependencies = { module=configure-gdb; on=all-gettext; };
 dependencies = { module=configure-gdb; on=configure-sim; };
 dependencies = { module=configure-gdb; on=all-bfd; };
 dependencies = { module=configure-gdb; on=all-gnulib; };
@@ -454,17 +460,17 @@ dependencies = { module=all-libgui; on=all-tk; };
 dependencies = { module=all-libgui; on=all-itcl; };
 
 dependencies = { module=configure-gdbsupport; on=configure-gnulib; };
-dependencies = { module=configure-gdbsupport; on=configure-intl; };
+dependencies = { module=configure-gdbsupport; on=configure-gettext; };
 dependencies = { module=all-gdbsupport; on=all-gnulib; };
-dependencies = { module=all-gdbsupport; on=all-intl; };
+dependencies = { module=all-gdbsupport; on=all-gettext; };
 
 // Host modules specific to binutils.
 // build libsframe before bfd for encoder/decoder support for linking
 // SFrame sections
 dependencies = { module=configure-bfd; on=configure-libiberty; hard=true; };
-dependencies = { module=configure-bfd; on=configure-intl; };
+dependencies = { module=configure-bfd; on=configure-gettext; };
 dependencies = { module=all-bfd; on=all-libiberty; };
-dependencies = { module=all-bfd; on=all-intl; };
+dependencies = { module=all-bfd; on=all-gettext; };
 dependencies = { module=all-bfd; on=all-zlib; };
 dependencies = { module=all-bfd; on=all-libsframe; };
 dependencies = { module=configure-opcodes; on=configure-libiberty; hard=true; };
@@ -473,13 +479,13 @@ dependencies = { module=all-opcodes; on=all-libiberty; };
 // We must build gas before binutils, gprof, ld and gold to avoid race
 // condition in the prev-gcc/as script during bootstrap of combined tree
 // with GCC and binutils.  See PR gas/14899 for details.
-dependencies = { module=configure-binutils; on=configure-intl; };
+dependencies = { module=configure-binutils; on=configure-gettext; };
 dependencies = { module=all-binutils; on=all-libiberty; };
 dependencies = { module=all-binutils; on=all-opcodes; };
 dependencies = { module=all-binutils; on=all-bfd; };
 dependencies = { module=all-binutils; on=all-build-flex; };
 dependencies = { module=all-binutils; on=all-build-bison; };
-dependencies = { module=all-binutils; on=all-intl; };
+dependencies = { module=all-binutils; on=all-gettext; };
 dependencies = { module=all-binutils; on=all-gas; };
 dependencies = { module=all-binutils; on=all-libctf; };
 dependencies = { module=all-ld; on=all-libctf; };
@@ -508,51 +514,51 @@ dependencies = { module=configure-opcodes; on=configure-bfd; hard=true; };
 dependencies = { module=install-opcodes; on=install-bfd; };
 dependencies = { module=install-strip-opcodes; on=install-strip-bfd; };
 
-dependencies = { module=configure-gas; on=configure-intl; };
+dependencies = { module=configure-gas; on=configure-gettext; };
 dependencies = { module=all-gas; on=all-libiberty; };
 dependencies = { module=all-gas; on=all-opcodes; };
 dependencies = { module=all-gas; on=all-bfd; };
-dependencies = { module=all-gas; on=all-intl; };
-dependencies = { module=configure-gprof; on=configure-intl; };
+dependencies = { module=all-gas; on=all-gettext; };
+dependencies = { module=configure-gprof; on=configure-gettext; };
 dependencies = { module=all-gprof; on=all-libiberty; };
 dependencies = { module=all-gprof; on=all-bfd; };
 dependencies = { module=all-gprof; on=all-opcodes; };
-dependencies = { module=all-gprof; on=all-intl; };
+dependencies = { module=all-gprof; on=all-gettext; };
 dependencies = { module=all-gprof; on=all-gas; };
 
-dependencies = { module=configure-gprofng; on=configure-intl; };
+dependencies = { module=configure-gprofng; on=configure-gettext; };
 dependencies = { module=all-gprofng; on=all-libiberty; };
 dependencies = { module=all-gprofng; on=all-bfd; };
 dependencies = { module=all-gprofng; on=all-opcodes; };
-dependencies = { module=all-gprofng; on=all-intl; };
+dependencies = { module=all-gprofng; on=all-gettext; };
 dependencies = { module=all-gprofng; on=all-gas; };
 dependencies = { module=install-gprofng; on=install-opcodes; };
 dependencies = { module=install-gprofng; on=install-bfd; };
 
-dependencies = { module=configure-ld; on=configure-intl; };
+dependencies = { module=configure-ld; on=configure-gettext; };
 dependencies = { module=all-ld; on=all-libiberty; };
 dependencies = { module=all-ld; on=all-bfd; };
 dependencies = { module=all-ld; on=all-opcodes; };
 dependencies = { module=all-ld; on=all-build-bison; };
 dependencies = { module=all-ld; on=all-build-flex; };
-dependencies = { module=all-ld; on=all-intl; };
+dependencies = { module=all-ld; on=all-gettext; };
 dependencies = { module=all-ld; on=all-gas; };
 dependencies = { module=all-ld; on=all-binutils; };
 dependencies = { module=install-ld; on=install-gold; };
 dependencies = { module=install-strip-ld; on=install-strip-gold; };
-dependencies = { module=configure-gold; on=configure-intl; };
+dependencies = { module=configure-gold; on=configure-gettext; };
 dependencies = { module=all-gold; on=all-libiberty; };
-dependencies = { module=all-gold; on=all-intl; };
+dependencies = { module=all-gold; on=all-gettext; };
 dependencies = { module=all-gold; on=all-bfd; };
 dependencies = { module=all-gold; on=all-build-bison; };
 dependencies = { module=all-gold; on=all-gas; };
 dependencies = { module=check-gold; on=all-binutils; };
 dependencies = { module=check-gold; on=all-gas; };
 
-dependencies = { module=configure-opcodes; on=configure-intl; };
+dependencies = { module=configure-opcodes; on=configure-gettext; };
 dependencies = { module=all-opcodes; on=all-bfd; };
 dependencies = { module=all-opcodes; on=all-libiberty; };
-dependencies = { module=all-opcodes; on=all-intl; };
+dependencies = { module=all-opcodes; on=all-gettext; };
 
 // Other host modules in the 'src' repository.
 dependencies = { module=all-dejagnu; on=all-tcl; };
@@ -586,8 +592,8 @@ dependencies = { module=install-sid; on=install-tk; };
 dependencies = { module=install-strip-sid; on=install-strip-tk; };
 
 dependencies = { module=configure-sim; on=all-gnulib; };
-dependencies = { module=configure-sim; on=configure-intl; };
-dependencies = { module=all-sim; on=all-intl; };
+dependencies = { module=configure-sim; on=configure-gettext; };
+dependencies = { module=all-sim; on=all-gettext; };
 dependencies = { module=all-sim; on=all-libiberty; };
 dependencies = { module=all-sim; on=all-bfd; };
 dependencies = { module=all-sim; on=all-opcodes; };
@@ -602,7 +608,7 @@ dependencies = { module=all-libctf; on=all-bfd; };
 dependencies = { module=all-libctf; on=all-zlib; };
 // So that checking for ELF support in BFD from libctf configure is possible.
 dependencies = { module=configure-libctf; on=all-bfd; };
-dependencies = { module=configure-libctf; on=all-intl; };
+dependencies = { module=configure-libctf; on=all-gettext; };
 dependencies = { module=configure-libctf; on=all-zlib; };
 dependencies = { module=configure-libctf; on=all-libiconv; };
 dependencies = { module=check-libctf; on=all-ld; };
@@ -615,13 +621,13 @@ dependencies = { module=distclean-gnulib; on=distclean-gdbserver; };
 dependencies = { module=distclean-gnulib; on=distclean-sim; };
 
 // Warning, these are not well tested.
-dependencies = { module=all-bison; on=all-intl; };
+dependencies = { module=all-bison; on=all-gettext; };
 dependencies = { module=all-bison; on=all-build-texinfo; };
 dependencies = { module=all-flex; on=all-build-bison; };
-dependencies = { module=all-flex; on=all-intl; };
+dependencies = { module=all-flex; on=all-gettext; };
 dependencies = { module=all-flex; on=all-m4; };
 dependencies = { module=all-flex; on=all-build-texinfo; };
-dependencies = { module=all-m4; on=all-intl; };
+dependencies = { module=all-m4; on=all-gettext; };
 dependencies = { module=all-m4; on=all-build-texinfo; };
 
 // Target modules.  These can also have dependencies on the language