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[config] Updated libunistring macro
This commit is contained in:
Scott Shambarger
parent
a1498fbe4f
commit
97afb22dc8
77
m4/absolute-header.m4
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77
m4/absolute-header.m4
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@ -0,0 +1,77 @@
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# absolute-header.m4 serial 12
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dnl Copyright (C) 2006-2010 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl From Derek Price.
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# gl_ABSOLUTE_HEADER(HEADER1 HEADER2 ...)
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# ---------------------------------------
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# Find the absolute name of a header file, testing first if the header exists.
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# If the header were sys/inttypes.h, this macro would define
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# ABSOLUTE_SYS_INTTYPES_H to the `""' quoted absolute name of sys/inttypes.h
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# in config.h
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# (e.g. `#define ABSOLUTE_SYS_INTTYPES_H "///usr/include/sys/inttypes.h"').
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# The three "///" are to pacify Sun C 5.8, which otherwise would say
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# "warning: #include of /usr/include/... may be non-portable".
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# Use `""', not `<>', so that the /// cannot be confused with a C99 comment.
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# Note: This macro assumes that the header file is not empty after
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# preprocessing, i.e. it does not only define preprocessor macros but also
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# provides some type/enum definitions or function/variable declarations.
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AC_DEFUN([gl_ABSOLUTE_HEADER],
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[AC_REQUIRE([AC_CANONICAL_HOST])
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AC_LANG_PREPROC_REQUIRE()dnl
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m4_foreach_w([gl_HEADER_NAME], [$1],
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[AS_VAR_PUSHDEF([gl_absolute_header],
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[gl_cv_absolute_]m4_defn([gl_HEADER_NAME]))dnl
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AC_CACHE_CHECK([absolute name of <]m4_defn([gl_HEADER_NAME])[>],
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m4_defn([gl_absolute_header]),
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[AS_VAR_PUSHDEF([ac_header_exists],
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[ac_cv_header_]m4_defn([gl_HEADER_NAME]))dnl
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AC_CHECK_HEADERS_ONCE(m4_defn([gl_HEADER_NAME]))dnl
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if test AS_VAR_GET(ac_header_exists) = yes; then
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gl_ABSOLUTE_HEADER_ONE(m4_defn([gl_HEADER_NAME]))
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fi
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AS_VAR_POPDEF([ac_header_exists])dnl
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])dnl
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AC_DEFINE_UNQUOTED(AS_TR_CPP([ABSOLUTE_]m4_defn([gl_HEADER_NAME])),
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["AS_VAR_GET(gl_absolute_header)"],
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[Define this to an absolute name of <]m4_defn([gl_HEADER_NAME])[>.])
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AS_VAR_POPDEF([gl_absolute_header])dnl
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])dnl
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])# gl_ABSOLUTE_HEADER
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# gl_ABSOLUTE_HEADER_ONE(HEADER)
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# ------------------------------
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# Like gl_ABSOLUTE_HEADER, except that:
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# - it assumes that the header exists,
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# - it uses the current CPPFLAGS,
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# - it does not cache the result,
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# - it is silent.
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AC_DEFUN([gl_ABSOLUTE_HEADER_ONE],
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[
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AC_LANG_CONFTEST([AC_LANG_SOURCE([[#include <]]m4_dquote([$1])[[>]])])
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dnl AIX "xlc -E" and "cc -E" omit #line directives for header files
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dnl that contain only a #include of other header files and no
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dnl non-comment tokens of their own. This leads to a failure to
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dnl detect the absolute name of <dirent.h>, <signal.h>, <poll.h>
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dnl and others. The workaround is to force preservation of comments
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dnl through option -C. This ensures all necessary #line directives
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dnl are present. GCC supports option -C as well.
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case "$host_os" in
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aix*) gl_absname_cpp="$ac_cpp -C" ;;
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*) gl_absname_cpp="$ac_cpp" ;;
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esac
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dnl eval is necessary to expand gl_absname_cpp.
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dnl Ultrix and Pyramid sh refuse to redirect output of eval,
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dnl so use subshell.
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AS_VAR_SET([gl_cv_absolute_]AS_TR_SH([[$1]]),
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[`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
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sed -n '\#/$1#{
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s#.*"\(.*/$1\)".*#\1#
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s#^/[^/]#//&#
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p
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q
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}'`])
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])
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@ -1,5 +1,5 @@
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# libunistring.m4 serial 4
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# libunistring.m4 serial 11
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dnl Copyright (C) 2009-2010 Free Software Foundation, Inc.
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dnl Copyright (C) 2009-2012 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl with or without modifications, as long as this notice is preserved.
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@ -7,22 +7,76 @@ dnl with or without modifications, as long as this notice is preserved.
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dnl gl_LIBUNISTRING
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dnl gl_LIBUNISTRING
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dnl Searches for an installed libunistring.
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dnl Searches for an installed libunistring.
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dnl If found, it sets and AC_SUBSTs HAVE_LIBUNISTRING=yes and the LIBUNISTRING
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dnl If found, it sets and AC_SUBSTs HAVE_LIBUNISTRING=yes and the LIBUNISTRING
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dnl and LTLIBUNISTRING variables and augments the CPPFLAGS variable, and
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dnl and LTLIBUNISTRING variables, sets the LIBUNISTRING_VERSION variable, and
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dnl #defines HAVE_LIBUNISTRING to 1. Otherwise, it sets and AC_SUBSTs
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dnl augments the CPPFLAGS variable, and #defines HAVE_LIBUNISTRING to 1.
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dnl HAVE_LIBUNISTRING=no and LIBUNISTRING and LTLIBUNISTRING to empty.
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dnl Otherwise, it sets and AC_SUBSTs HAVE_LIBUNISTRING=no and LIBUNISTRING and
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dnl LTLIBUNISTRING to empty.
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AC_DEFUN([gl_LIBUNISTRING],
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dnl Define gl_LIBUNISTRING using AC_DEFUN_ONCE for Autoconf >= 2.64, in order
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dnl to avoid warnings like
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dnl "warning: AC_REQUIRE: `gl_LIBUNISTRING' was expanded before it was required".
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dnl This is tricky because of the way 'aclocal' is implemented:
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dnl - It requires defining an auxiliary macro whose name ends in AC_DEFUN.
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dnl Otherwise aclocal's initial scan pass would miss the macro definition.
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dnl - It requires a line break inside the AC_DEFUN_ONCE and AC_DEFUN expansions.
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dnl Otherwise aclocal would emit many "Use of uninitialized value $1"
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dnl warnings.
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m4_define([gl_libunistring_AC_DEFUN],
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m4_version_prereq([2.64],
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[[AC_DEFUN_ONCE(
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[$1], [$2])]],
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[m4_ifdef([gl_00GNULIB],
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[[AC_DEFUN_ONCE(
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[$1], [$2])]],
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[[AC_DEFUN(
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[$1], [$2])]])]))
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gl_libunistring_AC_DEFUN([gl_LIBUNISTRING],
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[
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[
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AC_BEFORE([$0], [gl_LIBUNISTRING_MODULE])
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AC_BEFORE([$0], [gl_LIBUNISTRING_LIBHEADER])
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AC_BEFORE([$0], [gl_LIBUNISTRING_LIB_PREPARE])
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m4_ifdef([gl_LIBUNISTRING_OPTIONAL],
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[
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AC_MSG_CHECKING([whether included libunistring is requested])
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AC_ARG_WITH([included-libunistring],
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[ --with-included-libunistring use the libunistring parts included here],
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[gl_libunistring_force_included=$withval],
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[gl_libunistring_force_included=no])
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AC_MSG_RESULT([$gl_libunistring_force_included])
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gl_libunistring_use_included="$gl_libunistring_force_included"
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if test "$gl_libunistring_use_included" = yes; then
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dnl Assume that libunistring is not installed until some other macro
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dnl explicitly invokes gl_LIBUNISTRING_CORE.
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if test -z "$HAVE_LIBUNISTRING"; then
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HAVE_LIBUNISTRING=no
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fi
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LIBUNISTRING=
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LTLIBUNISTRING=
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else
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gl_LIBUNISTRING_CORE
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if test $HAVE_LIBUNISTRING = no; then
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gl_libunistring_use_included=yes
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LIBUNISTRING=
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LTLIBUNISTRING=
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fi
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fi
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],
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[gl_LIBUNISTRING_CORE])
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])
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AC_DEFUN([gl_LIBUNISTRING_CORE],
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[
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AC_REQUIRE([AM_ICONV])
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if test -n "$LIBICONV"; then
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dnl First, try to link without -liconv. libunistring often depends on
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dnl First, try to link without -liconv. libunistring often depends on
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dnl libiconv, but we don't know (and often don't need to know) where
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dnl libiconv, but we don't know (and often don't need to know) where
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dnl libiconv is installed.
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dnl libiconv is installed.
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AC_LIB_HAVE_LINKFLAGS([unistring], [],
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AC_LIB_HAVE_LINKFLAGS([unistring], [],
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[#include <uniconv.h>], [u8_strconv_from_locale((char*)0);],
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[#include <uniconv.h>], [u8_strconv_from_locale((char*)0);],
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[no, consider installing GNU libunistring])
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[no, trying again together with libiconv])
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if test "$ac_cv_libunistring" != yes; then
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if test "$ac_cv_libunistring" != yes; then
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dnl Second try, with -liconv.
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dnl Second try, with -liconv.
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AC_REQUIRE([AM_ICONV])
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if test -n "$LIBICONV"; then
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dnl We have to erase the cached result of the first AC_LIB_HAVE_LINKFLAGS
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dnl We have to erase the cached result of the first AC_LIB_HAVE_LINKFLAGS
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dnl invocation, otherwise the second one will not be run.
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dnl invocation, otherwise the second one will not be run.
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unset ac_cv_libunistring
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unset ac_cv_libunistring
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@ -37,5 +91,60 @@ AC_DEFUN([gl_LIBUNISTRING],
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fi
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fi
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LIBS="$glus_save_LIBS"
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LIBS="$glus_save_LIBS"
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fi
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fi
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else
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AC_LIB_HAVE_LINKFLAGS([unistring], [],
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[#include <uniconv.h>], [u8_strconv_from_locale((char*)0);],
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[no, consider installing GNU libunistring])
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fi
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if test $HAVE_LIBUNISTRING = yes; then
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dnl Determine the installed version.
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AC_CACHE_CHECK([for libunistring version], [gl_cv_libunistring_version],
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[AC_COMPUTE_INT([gl_libunistring_hexversion],
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[_LIBUNISTRING_VERSION],
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[#include <unistring/version.h>])
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dnl Versions <= 0.9.3 had a hexversion of 0x0009.
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dnl Use other tests to distinguish them.
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if test $gl_libunistring_hexversion = 9; then
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dnl Version 0.9.2 introduced the header <unistring/cdefs.h>.
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[#include <unistring/cdefs.h>]], [[]])],
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[gl_cv_libunistring_version092=true],
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[gl_cv_libunistring_version092=false])
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if $gl_cv_libunistring_version092; then
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dnl Version 0.9.3 changed a comment in <unistr.h>.
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gl_ABSOLUTE_HEADER_ONE([unistr.h])
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if test -n "$gl_cv_absolute_unistr_h" \
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&& grep 'Copy no more than N units of SRC to DEST. Return a pointer' $gl_cv_absolute_unistr_h > /dev/null; then
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dnl Detected version 0.9.3.
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gl_libunistring_hexversion=2307
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else
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dnl Detected version 0.9.2.
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gl_libunistring_hexversion=2306
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fi
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else
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dnl Version 0.9.1 introduced the type casing_suffix_context_t.
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <unicase.h>
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casing_suffix_context_t ct;]],
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[[]])],
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[gl_cv_libunistring_version091=true],
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[gl_cv_libunistring_version091=false])
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if $gl_cv_libunistring_version091; then
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dnl Detected version 0.9.1.
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gl_libunistring_hexversion=2305
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else
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dnl Detected version 0.9.
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gl_libunistring_hexversion=2304
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fi
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fi
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fi
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dnl Transform into the usual major.minor.subminor notation.
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gl_libunistring_major=`expr $gl_libunistring_hexversion / 65536`
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gl_libunistring_minor=`expr $gl_libunistring_hexversion / 256 % 256`
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gl_libunistring_subminor=`expr $gl_libunistring_hexversion % 256`
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gl_cv_libunistring_version="$gl_libunistring_major.$gl_libunistring_minor.$gl_libunistring_subminor"
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])
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LIBUNISTRING_VERSION="$gl_cv_libunistring_version"
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fi
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fi
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])
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])
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