intl: Add --enable-host-shared support [PR100096]

As mentioned in the PR, building gcc with jit enabled and
--enable-host-shared doesn't work on NetBSD/i?86, as libgccjit.so.0
has text relocations.
The r0-125846-g459260ecf8b420b029601a664cdb21c185268ecb changes
added --enable-host-shared support to various libraries, but didn't
add it to intl/ subdirectory; on Linux it isn't really needed, because
all: all-no
all-no: #nothing
but on other OSes intl/libintl.a is built.

The following patch makes sure it is built with -fPIC when
--enable-host-shared is used.

2021-04-16  Jakub Jelinek  <jakub@redhat.com>

	PR jit/100096
	* configure.ac: Add --enable-host-shared support.
	* Makefile.in: Update copyright.  Add @PICFLAG@ to CFLAGS.
	* configure: Regenerated.

intl/Makefile.in

@@ -1,5 +1,5 @@
 # Makefile for directory with message catalog handling library of GNU gettext
-# Copyright (C) 1995-1998, 2000-2003 Free Software Foundation, Inc.
+# Copyright (C) 1995-2021 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify it
 # under the terms of the GNU Library General Public License as published
@@ -45,7 +45,7 @@ RANLIB = @RANLIB@
 YACC = @INTLBISON@ -y -d
 YFLAGS = --name-prefix=__gettext
 CPPFLAGS = @CPPFLAGS@
-CFLAGS = @CFLAGS@
+CFLAGS = @CFLAGS@ @PICFLAG@
 LDFLAGS = @LDFLAGS@
 LIBS = @LIBS@
 DEFS = -DHAVE_CONFIG_H

intl/configure

@@ -622,6 +622,7 @@ ac_unique_file="gettext.c"
 ac_header_list=
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
+PICFLAG
 BISON3_NO
 BISON3_YES
 INCINTL
@@ -726,6 +727,7 @@ with_included_gettext
 with_libintl_prefix
 with_libintl_type
 enable_maintainer_mode
+enable_host_shared
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1350,6 +1352,7 @@ Optional Features:
   --disable-nls           do not use Native Language Support
   --disable-rpath         do not hardcode runtime library paths
   --enable-maintainer-mode enable rules only needed by maintainers
+  --enable-host-shared    build host code as shared libraries
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -6815,6 +6818,15 @@ fi
 
 
 
+# Check whether --enable-host-shared was given.
+if test "${enable_host_shared+set}" = set; then :
+  enableval=$enable_host_shared; PICFLAG=-fPIC
+else
+  PICFLAG=
+fi
+
+
+
 ac_config_files="$ac_config_files Makefile config.intl"
 
 cat >confcache <<\_ACEOF

intl/configure.ac

@@ -69,5 +69,11 @@ fi
 AC_SUBST(BISON3_YES)
 AC_SUBST(BISON3_NO)
 
+AC_ARG_ENABLE(host-shared,
+[AS_HELP_STRING([--enable-host-shared],
+		[build host code as shared libraries])],
+[PICFLAG=-fPIC], [PICFLAG=])
+AC_SUBST(PICFLAG)
+
 AC_CONFIG_FILES(Makefile config.intl)
 AC_OUTPUT