xmms/gentoo-m4/gettext.m4

# gettext.m4 serial 28 (gettext-0.13)
dnl Copyright (C) 1995-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.
dnl
dnl This file can can be used in projects which are not available under
dnl the GNU General Public License or the GNU Library General Public
dnl License but which still want to provide support for the GNU gettext
dnl functionality.
dnl Please note that the actual code of the GNU gettext library is covered
dnl by the GNU Library General Public License, and the rest of the GNU
dnl gettext package package is covered by the GNU General Public License.
dnl They are *not* in the public domain.

dnl Authors:
dnl   Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
dnl   Bruno Haible <haible@clisp.cons.org>, 2000-2003.

dnl Macro to add for using GNU gettext.

dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
dnl    default (if it is not specified or empty) is 'no-libtool'.
dnl    INTLSYMBOL should be 'external' for packages with no intl directory,
dnl    and 'no-libtool' or 'use-libtool' for packages with an intl directory.
dnl    If INTLSYMBOL is 'use-libtool', then a libtool library
dnl    $(top_builddir)/intl/libintl.la will be created (shared and/or static,
dnl    depending on --{enable,disable}-{shared,static} and on the presence of
dnl    AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
dnl    $(top_builddir)/intl/libintl.a will be created.
dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
dnl    implementations (in libc or libintl) without the ngettext() function
dnl    will be ignored.  If NEEDSYMBOL is specified and is
dnl    'need-formatstring-macros', then GNU gettext implementations that don't
dnl    support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
dnl INTLDIR is used to find the intl libraries.  If empty,
dnl    the value `$(top_builddir)/intl/' is used.
dnl
dnl The result of the configuration is one of three cases:
dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
dnl    and used.
dnl    Catalog format: GNU --> install in $(datadir)
dnl    Catalog extension: .mo after installation, .gmo in source tree
dnl 2) GNU gettext has been found in the system's C library.
dnl    Catalog format: GNU --> install in $(datadir)
dnl    Catalog extension: .mo after installation, .gmo in source tree
dnl 3) No internationalization, always use English msgid.
dnl    Catalog format: none
dnl    Catalog extension: none
dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
dnl The use of .gmo is historical (it was needed to avoid overwriting the
dnl GNU format catalogs when building on a platform with an X/Open gettext),
dnl but we keep it in order not to force irrelevant filename changes on the
dnl maintainers.
dnl
AC_DEFUN([AM_GNU_GETTEXT],
[
  dnl Argument checking.
  ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], ,
    [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
])])])])])
  ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
    [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
])])])])
  define(gt_included_intl, ifelse([$1], [external], [no], [yes]))
  define(gt_libtool_suffix_prefix, ifelse([$1], [use-libtool], [l], []))

  AC_REQUIRE([AM_PO_SUBDIRS])dnl
  ifelse(gt_included_intl, yes, [
    AC_REQUIRE([AM_INTL_SUBDIR])dnl
  ])

  dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
  AC_REQUIRE([AC_LIB_RPATH])

  dnl Sometimes libintl requires libiconv, so first search for libiconv.
  dnl Ideally we would do this search only after the
  dnl      if test "$USE_NLS" = "yes"; then
  dnl        if test "$gt_cv_func_gnugettext_libc" != "yes"; then
  dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT
  dnl the configure script would need to contain the same shell code
  dnl again, outside any 'if'. There are two solutions:
  dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
  dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
  dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
  dnl documented, we avoid it.
  ifelse(gt_included_intl, yes, , [
    AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
  ])

  dnl Set USE_NLS.
  AM_NLS

  ifelse(gt_included_intl, yes, [
    BUILD_INCLUDED_LIBINTL=no
    USE_INCLUDED_LIBINTL=no
  ])
  LIBINTL=
  LTLIBINTL=
  POSUB=

  dnl If we use NLS figure out what method
  if test "$USE_NLS" = "yes"; then
    gt_use_preinstalled_gnugettext=no
    ifelse(gt_included_intl, yes, [
      AC_MSG_CHECKING([whether included gettext is requested])
      AC_ARG_WITH(included-gettext,
        [  --with-included-gettext use the GNU gettext library included here],
        nls_cv_force_use_gnu_gettext=$withval,
        nls_cv_force_use_gnu_gettext=no)
      AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)

      nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
      if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
    ])
        dnl User does not insist on using GNU NLS library.  Figure out what
        dnl to use.  If GNU gettext is available we use this.  Else we have
        dnl to fall back to GNU NLS library.

        dnl Add a version number to the cache macros.
        define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1)))
        define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc])
        define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl])

        AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
         [AC_TRY_LINK([#include <libintl.h>
]ifelse([$2], [need-formatstring-macros],
[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
#endif
changequote(,)dnl
typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
changequote([,])dnl
], [])[extern int _nl_msg_cat_cntr;
extern int *_nl_domain_bindings;],
            [bindtextdomain ("", "");
return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
            gt_cv_func_gnugettext_libc=yes,
            gt_cv_func_gnugettext_libc=no)])

        if test "$gt_cv_func_gnugettext_libc" != "yes"; then
          dnl Sometimes libintl requires libiconv, so first search for libiconv.
          ifelse(gt_included_intl, yes, , [
            AM_ICONV_LINK
          ])
          dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
          dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
          dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
          dnl even if libiconv doesn't exist.
          AC_LIB_LINKFLAGS_BODY([intl])
          AC_CACHE_CHECK([for GNU gettext in libintl],
            gt_cv_func_gnugettext_libintl,
           [gt_save_CPPFLAGS="$CPPFLAGS"
            CPPFLAGS="$CPPFLAGS $INCINTL"
            gt_save_LIBS="$LIBS"
            LIBS="$LIBS $LIBINTL"
            dnl Now see whether libintl exists and does not depend on libiconv.
            AC_TRY_LINK([#include <libintl.h>
]ifelse([$2], [need-formatstring-macros],
[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
#endif
changequote(,)dnl
typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
changequote([,])dnl
], [])[extern int _nl_msg_cat_cntr;
extern
#ifdef __cplusplus
"C"
#endif
const char *_nl_expand_alias ();],
              [bindtextdomain ("", "");
return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
              gt_cv_func_gnugettext_libintl=yes,
              gt_cv_func_gnugettext_libintl=no)
            dnl Now see whether libintl exists and depends on libiconv.
            if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then
              LIBS="$LIBS $LIBICONV"
              AC_TRY_LINK([#include <libintl.h>
]ifelse([$2], [need-formatstring-macros],
[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
#endif
changequote(,)dnl
typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
changequote([,])dnl
], [])[extern int _nl_msg_cat_cntr;
extern
#ifdef __cplusplus
"C"
#endif
const char *_nl_expand_alias ();],
                [bindtextdomain ("", "");
return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
               [LIBINTL="$LIBINTL $LIBICONV"
                LTLIBINTL="$LTLIBINTL $LTLIBICONV"
                gt_cv_func_gnugettext_libintl=yes
               ])
            fi
            CPPFLAGS="$gt_save_CPPFLAGS"
            LIBS="$gt_save_LIBS"])
        fi

        dnl If an already present or preinstalled GNU gettext() is found,
        dnl use it.  But if this macro is used in GNU gettext, and GNU
        dnl gettext is already preinstalled in libintl, we update this
        dnl libintl.  (Cf. the install rule in intl/Makefile.in.)
        if test "$gt_cv_func_gnugettext_libc" = "yes" \
           || { test "$gt_cv_func_gnugettext_libintl" = "yes" \
                && test "$PACKAGE" != gettext-runtime \
                && test "$PACKAGE" != gettext-tools; }; then
          gt_use_preinstalled_gnugettext=yes
        else
          dnl Reset the values set by searching for libintl.
          LIBINTL=
          LTLIBINTL=
          INCINTL=
        fi

    ifelse(gt_included_intl, yes, [
        if test "$gt_use_preinstalled_gnugettext" != "yes"; then
          dnl GNU gettext is not found in the C library.
          dnl Fall back on included GNU gettext library.
          nls_cv_use_gnu_gettext=yes
        fi
      fi

      if test "$nls_cv_use_gnu_gettext" = "yes"; then
        dnl Mark actions used to generate GNU NLS library.
        BUILD_INCLUDED_LIBINTL=yes
        USE_INCLUDED_LIBINTL=yes
        LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV"
        LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV"
        LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
      fi

      if test "$gt_use_preinstalled_gnugettext" = "yes" \
         || test "$nls_cv_use_gnu_gettext" = "yes"; then
        dnl Mark actions to use GNU gettext tools.
        CATOBJEXT=.gmo
      fi
    ])

    if test "$gt_use_preinstalled_gnugettext" = "yes" \
       || test "$nls_cv_use_gnu_gettext" = "yes"; then
      AC_DEFINE(ENABLE_NLS, 1,
        [Define to 1 if translation of program messages to the user's native language
   is requested.])
    else
      USE_NLS=no
    fi
  fi

  AC_MSG_CHECKING([whether to use NLS])
  AC_MSG_RESULT([$USE_NLS])
  if test "$USE_NLS" = "yes"; then
    AC_MSG_CHECKING([where the gettext function comes from])
    if test "$gt_use_preinstalled_gnugettext" = "yes"; then
      if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
        gt_source="external libintl"
      else
        gt_source="libc"
      fi
    else
      gt_source="included intl directory"
    fi
    AC_MSG_RESULT([$gt_source])
  fi

  if test "$USE_NLS" = "yes"; then

    if test "$gt_use_preinstalled_gnugettext" = "yes"; then
      if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
        AC_MSG_CHECKING([how to link with libintl])
        AC_MSG_RESULT([$LIBINTL])
        AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
      fi

      dnl For backward compatibility. Some packages may be using this.
      AC_DEFINE(HAVE_GETTEXT, 1,
       [Define if the GNU gettext() function is already present or preinstalled.])
      AC_DEFINE(HAVE_DCGETTEXT, 1,
       [Define if the GNU dcgettext() function is already present or preinstalled.])
    fi

    dnl We need to process the po/ directory.
    POSUB=po
  fi

  ifelse(gt_included_intl, yes, [
    dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
    dnl to 'yes' because some of the testsuite requires it.
    if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then
      BUILD_INCLUDED_LIBINTL=yes
    fi

    dnl Make all variables we use known to autoconf.
    AC_SUBST(BUILD_INCLUDED_LIBINTL)
    AC_SUBST(USE_INCLUDED_LIBINTL)
    AC_SUBST(CATOBJEXT)

    dnl For backward compatibility. Some configure.ins may be using this.
    nls_cv_header_intl=
    nls_cv_header_libgt=

    dnl For backward compatibility. Some Makefiles may be using this.
    DATADIRNAME=share
    AC_SUBST(DATADIRNAME)

    dnl For backward compatibility. Some Makefiles may be using this.
    INSTOBJEXT=.mo
    AC_SUBST(INSTOBJEXT)

    dnl For backward compatibility. Some Makefiles may be using this.
    GENCAT=gencat
    AC_SUBST(GENCAT)

    dnl For backward compatibility. Some Makefiles may be using this.
    if test "$USE_INCLUDED_LIBINTL" = yes; then
      INTLOBJS="\$(GETTOBJS)"
    fi
    AC_SUBST(INTLOBJS)

    dnl Enable libtool support if the surrounding package wishes it.
    INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
    AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
  ])

  dnl For backward compatibility. Some Makefiles may be using this.
  INTLLIBS="$LIBINTL"
  AC_SUBST(INTLLIBS)

  dnl Make all documented variables known to autoconf.
  AC_SUBST(LIBINTL)
  AC_SUBST(LTLIBINTL)
  AC_SUBST(POSUB)
])


dnl Checks for all prerequisites of the intl subdirectory,
dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
dnl            USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
AC_DEFUN([AM_INTL_SUBDIR],
[
  AC_REQUIRE([AC_PROG_INSTALL])dnl
  AC_REQUIRE([AM_MKINSTALLDIRS])dnl
  AC_REQUIRE([AC_PROG_CC])dnl
  AC_REQUIRE([AC_CANONICAL_HOST])dnl
  AC_REQUIRE([AC_PROG_RANLIB])dnl
  AC_REQUIRE([AC_ISC_POSIX])dnl
  AC_REQUIRE([AC_HEADER_STDC])dnl
  AC_REQUIRE([AC_C_CONST])dnl
  AC_REQUIRE([bh_C_SIGNED])dnl
  AC_REQUIRE([AC_C_INLINE])dnl
  AC_REQUIRE([AC_TYPE_OFF_T])dnl
  AC_REQUIRE([AC_TYPE_SIZE_T])dnl
  AC_REQUIRE([jm_AC_TYPE_LONG_LONG])dnl
  AC_REQUIRE([gt_TYPE_LONGDOUBLE])dnl
  AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
  AC_REQUIRE([gt_TYPE_WINT_T])dnl
  AC_REQUIRE([jm_AC_HEADER_INTTYPES_H])
  AC_REQUIRE([jm_AC_HEADER_STDINT_H])
  AC_REQUIRE([gt_TYPE_INTMAX_T])
  AC_REQUIRE([gt_PRINTF_POSIX])
  AC_REQUIRE([AC_FUNC_ALLOCA])dnl
  AC_REQUIRE([AC_FUNC_MMAP])dnl
  AC_REQUIRE([jm_GLIBC21])dnl
  AC_REQUIRE([gt_INTDIV0])dnl
  AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])dnl
  AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl
  AC_REQUIRE([gt_INTTYPES_PRI])dnl
  AC_REQUIRE([gl_XSIZE])dnl

  AC_CHECK_TYPE([ptrdiff_t], ,
    [AC_DEFINE([ptrdiff_t], [long],
       [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
    ])
  AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
stdlib.h string.h unistd.h sys/param.h])
  AC_CHECK_FUNCS([asprintf fwprintf getcwd getegid geteuid getgid getuid \
mempcpy munmap putenv setenv setlocale snprintf stpcpy strcasecmp strdup \
strtoul tsearch wcslen __argz_count __argz_stringify __argz_next \
__fsetlocking])

  dnl Use the _snprintf function only if it is declared (because on NetBSD it
  dnl is defined as a weak alias of snprintf; we prefer to use the latter).
  gt_CHECK_DECL(_snprintf, [#include <stdio.h>])
  gt_CHECK_DECL(_snwprintf, [#include <stdio.h>])

  dnl Use the *_unlocked functions only if they are declared.
  dnl (because some of them were defined without being declared in Solaris
  dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
  dnl on Solaris 2.5.1 to run on Solaris 2.6).
  dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
  gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
  gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
  gt_CHECK_DECL(getc_unlocked, [#include <stdio.h>])

  case $gt_cv_func_printf_posix in
    *yes) HAVE_POSIX_PRINTF=1 ;;
    *) HAVE_POSIX_PRINTF=0 ;;
  esac
  AC_SUBST([HAVE_POSIX_PRINTF])
  if test "$ac_cv_func_asprintf" = yes; then
    HAVE_ASPRINTF=1
  else
    HAVE_ASPRINTF=0
  fi
  AC_SUBST([HAVE_ASPRINTF])
  if test "$ac_cv_func_snprintf" = yes; then
    HAVE_SNPRINTF=1
  else
    HAVE_SNPRINTF=0
  fi
  AC_SUBST([HAVE_SNPRINTF])
  if test "$ac_cv_func_wprintf" = yes; then
    HAVE_WPRINTF=1
  else
    HAVE_WPRINTF=0
  fi
  AC_SUBST([HAVE_WPRINTF])

  AM_ICONV
  AM_LANGINFO_CODESET
  if test $ac_cv_header_locale_h = yes; then
    AM_LC_MESSAGES
  fi

  dnl intl/plural.c is generated from intl/plural.y. It requires bison,
  dnl because plural.y uses bison specific features. It requires at least
  dnl bison-1.26 because earlier versions generate a plural.c that doesn't
  dnl compile.
  dnl bison is only needed for the maintainer (who touches plural.y). But in
  dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
  dnl the rule in general Makefile. Now, some people carelessly touch the
  dnl files or have a broken "make" program, hence the plural.c rule will
  dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
  dnl present or too old.
  AC_CHECK_PROGS([INTLBISON], [bison])
  if test -z "$INTLBISON"; then
    ac_verc_fail=yes
  else
    dnl Found it, now check the version.
    AC_MSG_CHECKING([version of bison])
changequote(<<,>>)dnl
    ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
    case $ac_prog_version in
      '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
      1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
changequote([,])dnl
         ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
      *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
    esac
    AC_MSG_RESULT([$ac_prog_version])
  fi
  if test $ac_verc_fail = yes; then
    INTLBISON=:
  fi
])


dnl gt_CHECK_DECL(FUNC, INCLUDES)
dnl Check whether a function is declared.
AC_DEFUN([gt_CHECK_DECL],
[
  AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
    [AC_TRY_COMPILE([$2], [
#ifndef $1
  char *p = (char *) $1;
#endif
], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
  if test $ac_cv_have_decl_$1 = yes; then
    gt_value=1
  else
    gt_value=0
  fi
  AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
    [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])
])


dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])
1	niro	153	# gettext.m4 serial 28 (gettext-0.13)
2			dnl Copyright (C) 1995-2003 Free Software Foundation, Inc.
3			dnl This file is free software, distributed under the terms of the GNU
4			dnl General Public License. As a special exception to the GNU General
5			dnl Public License, this file may be distributed as part of a program
6			dnl that contains a configuration script generated by Autoconf, under
7			dnl the same distribution terms as the rest of that program.
8			dnl
9			dnl This file can can be used in projects which are not available under
10			dnl the GNU General Public License or the GNU Library General Public
11			dnl License but which still want to provide support for the GNU gettext
12			dnl functionality.
13			dnl Please note that the actual code of the GNU gettext library is covered
14			dnl by the GNU Library General Public License, and the rest of the GNU
15			dnl gettext package package is covered by the GNU General Public License.
16			dnl They are not in the public domain.
17
18			dnl Authors:
19			dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
20			dnl Bruno Haible <haible@clisp.cons.org>, 2000-2003.
21
22			dnl Macro to add for using GNU gettext.
23
24			dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
25			dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
26			dnl default (if it is not specified or empty) is 'no-libtool'.
27			dnl INTLSYMBOL should be 'external' for packages with no intl directory,
28			dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory.
29			dnl If INTLSYMBOL is 'use-libtool', then a libtool library
30			dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static,
31			dnl depending on --{enable,disable}-{shared,static} and on the presence of
32			dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
33			dnl $(top_builddir)/intl/libintl.a will be created.
34			dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
35			dnl implementations (in libc or libintl) without the ngettext() function
36			dnl will be ignored. If NEEDSYMBOL is specified and is
37			dnl 'need-formatstring-macros', then GNU gettext implementations that don't
38			dnl support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
39			dnl INTLDIR is used to find the intl libraries. If empty,
40			dnl the value `$(top_builddir)/intl/' is used.
41			dnl
42			dnl The result of the configuration is one of three cases:
43			dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
44			dnl and used.
45			dnl Catalog format: GNU --> install in $(datadir)
46			dnl Catalog extension: .mo after installation, .gmo in source tree
47			dnl 2) GNU gettext has been found in the system's C library.
48			dnl Catalog format: GNU --> install in $(datadir)
49			dnl Catalog extension: .mo after installation, .gmo in source tree
50			dnl 3) No internationalization, always use English msgid.
51			dnl Catalog format: none
52			dnl Catalog extension: none
53			dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
54			dnl The use of .gmo is historical (it was needed to avoid overwriting the
55			dnl GNU format catalogs when building on a platform with an X/Open gettext),
56			dnl but we keep it in order not to force irrelevant filename changes on the
57			dnl maintainers.
58			dnl
59			AC_DEFUN([AM_GNU_GETTEXT],
60			[
61			dnl Argument checking.
62			ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], ,
63			[errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
64			])])])])])
65			ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
66			[errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
67			])])])])
68			define(gt_included_intl, ifelse([$1], [external], [no], [yes]))
69			define(gt_libtool_suffix_prefix, ifelse([$1], [use-libtool], [l], []))
70
71			AC_REQUIRE([AM_PO_SUBDIRS])dnl
72			ifelse(gt_included_intl, yes, [
73			AC_REQUIRE([AM_INTL_SUBDIR])dnl
74			])
75
76			dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
77			AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
78			AC_REQUIRE([AC_LIB_RPATH])
79
80			dnl Sometimes libintl requires libiconv, so first search for libiconv.
81			dnl Ideally we would do this search only after the
82			dnl if test "$USE_NLS" = "yes"; then
83			dnl if test "$gt_cv_func_gnugettext_libc" != "yes"; then
84			dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT
85			dnl the configure script would need to contain the same shell code
86			dnl again, outside any 'if'. There are two solutions:
87			dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
88			dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
89			dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
90			dnl documented, we avoid it.
91			ifelse(gt_included_intl, yes, , [
92			AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
93			])
94
95			dnl Set USE_NLS.
96			AM_NLS
97
98			ifelse(gt_included_intl, yes, [
99			BUILD_INCLUDED_LIBINTL=no
100			USE_INCLUDED_LIBINTL=no
101			])
102			LIBINTL=
103			LTLIBINTL=
104			POSUB=
105
106			dnl If we use NLS figure out what method
107			if test "$USE_NLS" = "yes"; then
108			gt_use_preinstalled_gnugettext=no
109			ifelse(gt_included_intl, yes, [
110			AC_MSG_CHECKING([whether included gettext is requested])
111			AC_ARG_WITH(included-gettext,
112			[ --with-included-gettext use the GNU gettext library included here],
113			nls_cv_force_use_gnu_gettext=$withval,
114			nls_cv_force_use_gnu_gettext=no)
115			AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
116
117			nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
118			if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
119			])
120			dnl User does not insist on using GNU NLS library. Figure out what
121			dnl to use. If GNU gettext is available we use this. Else we have
122			dnl to fall back to GNU NLS library.
123
124			dnl Add a version number to the cache macros.
125			define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1)))
126			define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc])
127			define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl])
128
129			AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
130			[AC_TRY_LINK([#include <libintl.h>
131			]ifelse([$2], [need-formatstring-macros],
132			[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
133			#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
134			#endif
135			changequote(,)dnl
136			typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
137			changequote([,])dnl
138			], [])[extern int _nl_msg_cat_cntr;
139			extern int *_nl_domain_bindings;],
140			[bindtextdomain ("", "");
141			return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
142			gt_cv_func_gnugettext_libc=yes,
143			gt_cv_func_gnugettext_libc=no)])
144
145			if test "$gt_cv_func_gnugettext_libc" != "yes"; then
146			dnl Sometimes libintl requires libiconv, so first search for libiconv.
147			ifelse(gt_included_intl, yes, , [
148			AM_ICONV_LINK
149			])
150			dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
151			dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
152			dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
153			dnl even if libiconv doesn't exist.
154			AC_LIB_LINKFLAGS_BODY([intl])
155			AC_CACHE_CHECK([for GNU gettext in libintl],
156			gt_cv_func_gnugettext_libintl,
157			[gt_save_CPPFLAGS="$CPPFLAGS"
158			CPPFLAGS="$CPPFLAGS $INCINTL"
159			gt_save_LIBS="$LIBS"
160			LIBS="$LIBS $LIBINTL"
161			dnl Now see whether libintl exists and does not depend on libiconv.
162			AC_TRY_LINK([#include <libintl.h>
163			]ifelse([$2], [need-formatstring-macros],
164			[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
165			#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
166			#endif
167			changequote(,)dnl
168			typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
169			changequote([,])dnl
170			], [])[extern int _nl_msg_cat_cntr;
171			extern
172			#ifdef __cplusplus
173			"C"
174			#endif
175			const char *_nl_expand_alias ();],
176			[bindtextdomain ("", "");
177			return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
178			gt_cv_func_gnugettext_libintl=yes,
179			gt_cv_func_gnugettext_libintl=no)
180			dnl Now see whether libintl exists and depends on libiconv.
181			if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then
182			LIBS="$LIBS $LIBICONV"
183			AC_TRY_LINK([#include <libintl.h>
184			]ifelse([$2], [need-formatstring-macros],
185			[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
186			#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
187			#endif
188			changequote(,)dnl
189			typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
190			changequote([,])dnl
191			], [])[extern int _nl_msg_cat_cntr;
192			extern
193			#ifdef __cplusplus
194			"C"
195			#endif
196			const char *_nl_expand_alias ();],
197			[bindtextdomain ("", "");
198			return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
199			[LIBINTL="$LIBINTL $LIBICONV"
200			LTLIBINTL="$LTLIBINTL $LTLIBICONV"
201			gt_cv_func_gnugettext_libintl=yes
202			])
203			fi
204			CPPFLAGS="$gt_save_CPPFLAGS"
205			LIBS="$gt_save_LIBS"])
206			fi
207
208			dnl If an already present or preinstalled GNU gettext() is found,
209			dnl use it. But if this macro is used in GNU gettext, and GNU
210			dnl gettext is already preinstalled in libintl, we update this
211			dnl libintl. (Cf. the install rule in intl/Makefile.in.)
212			if test "$gt_cv_func_gnugettext_libc" = "yes" \
213			\|\| { test "$gt_cv_func_gnugettext_libintl" = "yes" \
214			&& test "$PACKAGE" != gettext-runtime \
215			&& test "$PACKAGE" != gettext-tools; }; then
216			gt_use_preinstalled_gnugettext=yes
217			else
218			dnl Reset the values set by searching for libintl.
219			LIBINTL=
220			LTLIBINTL=
221			INCINTL=
222			fi
223
224			ifelse(gt_included_intl, yes, [
225			if test "$gt_use_preinstalled_gnugettext" != "yes"; then
226			dnl GNU gettext is not found in the C library.
227			dnl Fall back on included GNU gettext library.
228			nls_cv_use_gnu_gettext=yes
229			fi
230			fi
231
232			if test "$nls_cv_use_gnu_gettext" = "yes"; then
233			dnl Mark actions used to generate GNU NLS library.
234			BUILD_INCLUDED_LIBINTL=yes
235			USE_INCLUDED_LIBINTL=yes
236			LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV"
237			LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV"
238			LIBS=`echo " $LIBS " \| sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
239			fi
240
241			if test "$gt_use_preinstalled_gnugettext" = "yes" \
242			\|\| test "$nls_cv_use_gnu_gettext" = "yes"; then
243			dnl Mark actions to use GNU gettext tools.
244			CATOBJEXT=.gmo
245			fi
246			])
247
248			if test "$gt_use_preinstalled_gnugettext" = "yes" \
249			\|\| test "$nls_cv_use_gnu_gettext" = "yes"; then
250			AC_DEFINE(ENABLE_NLS, 1,
251			[Define to 1 if translation of program messages to the user's native language
252			is requested.])
253			else
254			USE_NLS=no
255			fi
256			fi
257
258			AC_MSG_CHECKING([whether to use NLS])
259			AC_MSG_RESULT([$USE_NLS])
260			if test "$USE_NLS" = "yes"; then
261			AC_MSG_CHECKING([where the gettext function comes from])
262			if test "$gt_use_preinstalled_gnugettext" = "yes"; then
263			if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
264			gt_source="external libintl"
265			else
266			gt_source="libc"
267			fi
268			else
269			gt_source="included intl directory"
270			fi
271			AC_MSG_RESULT([$gt_source])
272			fi
273
274			if test "$USE_NLS" = "yes"; then
275
276			if test "$gt_use_preinstalled_gnugettext" = "yes"; then
277			if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
278			AC_MSG_CHECKING([how to link with libintl])
279			AC_MSG_RESULT([$LIBINTL])
280			AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
281			fi
282
283			dnl For backward compatibility. Some packages may be using this.
284			AC_DEFINE(HAVE_GETTEXT, 1,
285			[Define if the GNU gettext() function is already present or preinstalled.])
286			AC_DEFINE(HAVE_DCGETTEXT, 1,
287			[Define if the GNU dcgettext() function is already present or preinstalled.])
288			fi
289
290			dnl We need to process the po/ directory.
291			POSUB=po
292			fi
293
294			ifelse(gt_included_intl, yes, [
295			dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
296			dnl to 'yes' because some of the testsuite requires it.
297			if test "$PACKAGE" = gettext-runtime \|\| test "$PACKAGE" = gettext-tools; then
298			BUILD_INCLUDED_LIBINTL=yes
299			fi
300
301			dnl Make all variables we use known to autoconf.
302			AC_SUBST(BUILD_INCLUDED_LIBINTL)
303			AC_SUBST(USE_INCLUDED_LIBINTL)
304			AC_SUBST(CATOBJEXT)
305
306			dnl For backward compatibility. Some configure.ins may be using this.
307			nls_cv_header_intl=
308			nls_cv_header_libgt=
309
310			dnl For backward compatibility. Some Makefiles may be using this.
311			DATADIRNAME=share
312			AC_SUBST(DATADIRNAME)
313
314			dnl For backward compatibility. Some Makefiles may be using this.
315			INSTOBJEXT=.mo
316			AC_SUBST(INSTOBJEXT)
317
318			dnl For backward compatibility. Some Makefiles may be using this.
319			GENCAT=gencat
320			AC_SUBST(GENCAT)
321
322			dnl For backward compatibility. Some Makefiles may be using this.
323			if test "$USE_INCLUDED_LIBINTL" = yes; then
324			INTLOBJS="\$(GETTOBJS)"
325			fi
326			AC_SUBST(INTLOBJS)
327
328			dnl Enable libtool support if the surrounding package wishes it.
329			INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
330			AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
331			])
332
333			dnl For backward compatibility. Some Makefiles may be using this.
334			INTLLIBS="$LIBINTL"
335			AC_SUBST(INTLLIBS)
336
337			dnl Make all documented variables known to autoconf.
338			AC_SUBST(LIBINTL)
339			AC_SUBST(LTLIBINTL)
340			AC_SUBST(POSUB)
341			])
342
343
344			dnl Checks for all prerequisites of the intl subdirectory,
345			dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
346			dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
347			AC_DEFUN([AM_INTL_SUBDIR],
348			[
349			AC_REQUIRE([AC_PROG_INSTALL])dnl
350			AC_REQUIRE([AM_MKINSTALLDIRS])dnl
351			AC_REQUIRE([AC_PROG_CC])dnl
352			AC_REQUIRE([AC_CANONICAL_HOST])dnl
353			AC_REQUIRE([AC_PROG_RANLIB])dnl
354			AC_REQUIRE([AC_ISC_POSIX])dnl
355			AC_REQUIRE([AC_HEADER_STDC])dnl
356			AC_REQUIRE([AC_C_CONST])dnl
357			AC_REQUIRE([bh_C_SIGNED])dnl
358			AC_REQUIRE([AC_C_INLINE])dnl
359			AC_REQUIRE([AC_TYPE_OFF_T])dnl
360			AC_REQUIRE([AC_TYPE_SIZE_T])dnl
361			AC_REQUIRE([jm_AC_TYPE_LONG_LONG])dnl
362			AC_REQUIRE([gt_TYPE_LONGDOUBLE])dnl
363			AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
364			AC_REQUIRE([gt_TYPE_WINT_T])dnl
365			AC_REQUIRE([jm_AC_HEADER_INTTYPES_H])
366			AC_REQUIRE([jm_AC_HEADER_STDINT_H])
367			AC_REQUIRE([gt_TYPE_INTMAX_T])
368			AC_REQUIRE([gt_PRINTF_POSIX])
369			AC_REQUIRE([AC_FUNC_ALLOCA])dnl
370			AC_REQUIRE([AC_FUNC_MMAP])dnl
371			AC_REQUIRE([jm_GLIBC21])dnl
372			AC_REQUIRE([gt_INTDIV0])dnl
373			AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])dnl
374			AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl
375			AC_REQUIRE([gt_INTTYPES_PRI])dnl
376			AC_REQUIRE([gl_XSIZE])dnl
377
378			AC_CHECK_TYPE([ptrdiff_t], ,
379			[AC_DEFINE([ptrdiff_t], [long],
380			[Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
381			])
382			AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
383			stdlib.h string.h unistd.h sys/param.h])
384			AC_CHECK_FUNCS([asprintf fwprintf getcwd getegid geteuid getgid getuid \
385			mempcpy munmap putenv setenv setlocale snprintf stpcpy strcasecmp strdup \
386			strtoul tsearch wcslen __argz_count __argz_stringify __argz_next \
387			__fsetlocking])
388
389			dnl Use the _snprintf function only if it is declared (because on NetBSD it
390			dnl is defined as a weak alias of snprintf; we prefer to use the latter).
391			gt_CHECK_DECL(_snprintf, [#include <stdio.h>])
392			gt_CHECK_DECL(_snwprintf, [#include <stdio.h>])
393
394			dnl Use the *_unlocked functions only if they are declared.
395			dnl (because some of them were defined without being declared in Solaris
396			dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built
397			dnl on Solaris 2.5.1 to run on Solaris 2.6).
398			dnl Don't use AC_CHECK_DECLS because it isn't supported in autoconf-2.13.
399			gt_CHECK_DECL(feof_unlocked, [#include <stdio.h>])
400			gt_CHECK_DECL(fgets_unlocked, [#include <stdio.h>])
401			gt_CHECK_DECL(getc_unlocked, [#include <stdio.h>])
402
403			case $gt_cv_func_printf_posix in
404			*yes) HAVE_POSIX_PRINTF=1 ;;
405			*) HAVE_POSIX_PRINTF=0 ;;
406			esac
407			AC_SUBST([HAVE_POSIX_PRINTF])
408			if test "$ac_cv_func_asprintf" = yes; then
409			HAVE_ASPRINTF=1
410			else
411			HAVE_ASPRINTF=0
412			fi
413			AC_SUBST([HAVE_ASPRINTF])
414			if test "$ac_cv_func_snprintf" = yes; then
415			HAVE_SNPRINTF=1
416			else
417			HAVE_SNPRINTF=0
418			fi
419			AC_SUBST([HAVE_SNPRINTF])
420			if test "$ac_cv_func_wprintf" = yes; then
421			HAVE_WPRINTF=1
422			else
423			HAVE_WPRINTF=0
424			fi
425			AC_SUBST([HAVE_WPRINTF])
426
427			AM_ICONV
428			AM_LANGINFO_CODESET
429			if test $ac_cv_header_locale_h = yes; then
430			AM_LC_MESSAGES
431			fi
432
433			dnl intl/plural.c is generated from intl/plural.y. It requires bison,
434			dnl because plural.y uses bison specific features. It requires at least
435			dnl bison-1.26 because earlier versions generate a plural.c that doesn't
436			dnl compile.
437			dnl bison is only needed for the maintainer (who touches plural.y). But in
438			dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
439			dnl the rule in general Makefile. Now, some people carelessly touch the
440			dnl files or have a broken "make" program, hence the plural.c rule will
441			dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
442			dnl present or too old.
443			AC_CHECK_PROGS([INTLBISON], [bison])
444			if test -z "$INTLBISON"; then
445			ac_verc_fail=yes
446			else
447			dnl Found it, now check the version.
448			AC_MSG_CHECKING([version of bison])
449			changequote(<<,>>)dnl
450			ac_prog_version=`$INTLBISON --version 2>&1 \| sed -n 's/^.GNU Bison. \([0-9]\.[0-9.]\).*$/\1/p'`
451			case $ac_prog_version in
452			'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
453			1.2[6-9]* \| 1.[3-9][0-9]* \| [2-9].*)
454			changequote([,])dnl
455			ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
456			*) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
457			esac
458			AC_MSG_RESULT([$ac_prog_version])
459			fi
460			if test $ac_verc_fail = yes; then
461			INTLBISON=:
462			fi
463			])
464
465
466			dnl gt_CHECK_DECL(FUNC, INCLUDES)
467			dnl Check whether a function is declared.
468			AC_DEFUN([gt_CHECK_DECL],
469			[
470			AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
471			[AC_TRY_COMPILE([$2], [
472			#ifndef $1
473			char p = (char ) $1;
474			#endif
475			], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
476			if test $ac_cv_have_decl_$1 = yes; then
477			gt_value=1
478			else
479			gt_value=0
480			fi
481			AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
482			[Define to 1 if you have the declaration of `$1', and to 0 if you don't.])
483			])
484
485
486			dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
487			AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])